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	<id>https://wiki.flightgear.org/w/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Hellosimon</id>
	<title>FlightGear wiki - User contributions [en]</title>
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	<updated>2026-05-02T10:23:52Z</updated>
	<subtitle>User contributions</subtitle>
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		<id>https://wiki.flightgear.org/w/index.php?title=Main_Page&amp;diff=27959</id>
		<title>Main Page</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Main_Page&amp;diff=27959"/>
		<updated>2011-01-27T13:40:23Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Reverted edits by Elizrewa (talk) to last revision by Fg&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!--------------------------------Banner across top of page------------------------------&amp;gt;&lt;br /&gt;
{| style=&amp;quot;width:100%; background:#efefef; margin-top:1.2em; border:1px solid #d9e2e2;&amp;quot;&lt;br /&gt;
|style=&amp;quot;width:100%; color:#000&amp;quot;| &lt;br /&gt;
&lt;br /&gt;
&amp;lt;!-------------&amp;quot;Welcome to FlightGear&amp;quot; and article count----------&amp;gt;&lt;br /&gt;
{| style=&amp;quot;width:100%; border:solid 0px; background:none;&amp;quot;&lt;br /&gt;
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&amp;lt;div style=&amp;quot;font-size:162%; border:none; margin:0; padding:.1em; color:#000;&amp;quot;&amp;gt;Welcome to the FlightGear Wiki!&amp;lt;/div&amp;gt;&lt;br /&gt;
&amp;lt;div id=&amp;quot;articlecount&amp;quot; style=&amp;quot;width:100%; text-align:center; font-size:85%;&amp;quot;&amp;gt;now with [[Special:Statistics|{{NUMBEROFARTICLES}}]] articles&amp;lt;/div&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[file:de.gif|link=:de:Hauptseite]]&lt;br /&gt;
[[file:en.gif|link=:en:Main Page]]&lt;br /&gt;
[[file:es.gif|link=:es:Portada]]&lt;br /&gt;
[[file:fi.gif|link=:fi:Etusivu]]&lt;br /&gt;
[[file:fr.gif|link=:fr:Accueil]]&lt;br /&gt;
[[file:nl.gif|link=:nl:Hoofdpagina]]&lt;br /&gt;
[[file:pl.gif|link=:pl:Strona główna]]&lt;br /&gt;
[[file:pt.gif|link=:pt:Página principal]]&lt;br /&gt;
[[file:ru.gif|link=:ru:Заглавная страница]]&lt;br /&gt;
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|}&lt;br /&gt;
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&amp;lt;!--------------Portal list on righthand side----------&amp;gt;&lt;br /&gt;
|style=&amp;quot;width:11%; font-size:95%; color:#000;&amp;quot;|&lt;br /&gt;
|}&amp;lt;!--&lt;br /&gt;
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[[----------Strapline immediately below banner----------&amp;gt;&lt;br /&gt;
{|style=&amp;quot;width:100%; background:none; margin:-.8em 0 -.7em 0;&amp;quot;&lt;br /&gt;
|style=&amp;quot;font-size:95%; padding:10px 0; margin:0px; text-align:left; white-space:nowrap; color:#000;&amp;quot;| [[Help:Tutorial|Editing]]&amp;amp;nbsp;'''·''' [[Help:Contents|Help]]&lt;br /&gt;
|style=&amp;quot;font-size:95%; padding:10px 0; margin:0px; text-align: right; white-space:nowrap; color:#000;&amp;quot;| [[Special:Allpages|All pages]]&amp;amp;nbsp;'''·''' [[Special:Search|Search]]&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
{|style=&amp;quot;border-spacing:8px; margin:0px -8px;&amp;quot;&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:100%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top; color:#000;&amp;quot;|&lt;br /&gt;
{|width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;1&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;FlightGear Flight Simulator&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
'''[[FlightGear]]''' is a flight-simulator created by volunteers, and released as free, open-source [[GNU General Public License|GPL]] software, available for download [http://www.flightgear.org/Downloads/ here]. FlightGear has a graphical user interface for flying, and different types of flight models available. It has been used for academic research, education, and for fun. &lt;br /&gt;
&lt;br /&gt;
The complete project source code is available via [[Git]], licensed under the [[GNU General Public License]]. FlightGear's open architecture encourages volunteer [[Volunteer|contributions]], as well as the exploration of a wide variety of flight simulator concepts. It has inspired a number of [[FlightGear related projects|related projects]].  &lt;br /&gt;
&lt;br /&gt;
FlightGear comes with a set of illustrated documentation, notably &amp;quot;The Manual&amp;quot;, which is available as [http://mapserver.flightgear.org/getstart.pdf PDF] and [http://www.flightgear.org/Docs/getstart/getstart.html HTML].&lt;br /&gt;
&lt;br /&gt;
{|style=&amp;quot;background:none;&amp;quot;&lt;br /&gt;
|style=&amp;quot;font-size:100%; padding-left:10px; padding-right:20px; margin:0px; vertical-align: top; text-align:left; white-space:nowrap; color:#000;&amp;quot;| &lt;br /&gt;
* '''[[Portal:User|Getting Started]]'''&lt;br /&gt;
** [[New to FlightGear]]&lt;br /&gt;
** [[FAQ]]&lt;br /&gt;
** [[:Category:Howto|Tutorials]]&lt;br /&gt;
**'''[[Portal:User|More...]]'''&lt;br /&gt;
|style=&amp;quot;font-size:100%; padding-left:20px; margin:0px; vertical-align: top; text-align: left; border-left: 2px solid #d9e2e2; white-space:nowrap; color:#000;&amp;quot;| &lt;br /&gt;
* '''[[Portal:Pilot|Using FlightGear]]'''&lt;br /&gt;
** [[Aircraft|Additional Aircraft]]&lt;br /&gt;
** [[Flying the helicopter|Helicopter flying]]&lt;br /&gt;
** [[Portal:Pilot|Advanced Pilot Training]]&lt;br /&gt;
** '''[[Portal:Pilot|More...]]'''&lt;br /&gt;
|style=&amp;quot;font-size:100%; padding-left:20px; margin:0px; vertical-align: top; text-align: left; border-left: 2px solid #d9e2e2; white-space:nowrap; color:#000;&amp;quot;| &lt;br /&gt;
* '''[[Portal:Developer|Developing FlightGear]]'''&lt;br /&gt;
** [[Portal:Developer/Aircraft|Creating Aircraft]]&lt;br /&gt;
** [[Portal:Developer/Scenery|Creating Scenery]]&lt;br /&gt;
** [[Building FlightGear]]&lt;br /&gt;
** '''[[Portal:Developer|More...]]'''&lt;br /&gt;
|}&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
{|style=&amp;quot;border-spacing:8px; margin:0px -8px;&amp;quot;&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:50%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top; color:#000;&amp;quot;|&lt;br /&gt;
{|width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;2&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;FlightGear Features&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* '''[[Aircraft]]'''&lt;br /&gt;
** FlightGear simulates aircraft from hang-gliders to jumbo jets&lt;br /&gt;
** [[Table of models|Dozens of additional aircraft]] are available for download&lt;br /&gt;
** Users can add new aircraft designs, or edit existing models&lt;br /&gt;
&lt;br /&gt;
* '''[[:Category:Airports|Airports]]'''&lt;br /&gt;
** FlightGear includes a current database of over 20,000 real airports&lt;br /&gt;
** Airport layouts and 3D models can be edited with free tools&lt;br /&gt;
&lt;br /&gt;
* '''[[Scenery]]'''&lt;br /&gt;
** Basic scenery is available for almost the entire globe&lt;br /&gt;
** Land elevation is based on [http://www.nasa.gov/ NASA] data&lt;br /&gt;
** New scenery can be downloaded automatically while you fly&lt;br /&gt;
** Some cities include 3D buildings and landmarks.&lt;br /&gt;
&lt;br /&gt;
* '''GPL License'''&lt;br /&gt;
** FlightGear is free, open-source [[GPL]] software&lt;br /&gt;
** Open architecture encourages [[FlightGear related projects|related Projects]]&lt;br /&gt;
|-&lt;br /&gt;
&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Did you know...&amp;lt;/h2&amp;gt;   &lt;br /&gt;
|-   &lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;|  &lt;br /&gt;
{{Did you know}}&lt;br /&gt;
 &lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:50%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top&amp;quot;|&lt;br /&gt;
{| width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;2&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Picture of the week&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
{{POTW/{{CURRENTYEAR}}-{{CURRENTWEEK}}}}&lt;br /&gt;
|-   &lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;News&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[FlightGear Newsletter January 2011]] (Under Construction)&lt;br /&gt;
* [[FlightGear Newsletter December 2010]] (Latest Completed Issue) &amp;lt;!-- temporary [[FlightGear Newsletter{{MONTHNAME|{{LASTMONTHNAME}}}} {{CURRENTYEAR}}]]--&amp;gt; &lt;br /&gt;
* [[List of FlightGear Newsletters|FlightGear Newsletter Archive]]&lt;br /&gt;
* '''December 20, 2010:''' FlightGear wiki exceeded 6.000.000 pageviews&lt;br /&gt;
&amp;lt;!--* '''May 2010:''' FlightGear wiki exceeded 4.000.000 pageviews--&amp;gt;&lt;br /&gt;
* '''February 25, 2010:''' [[FlightGear]] 2.0.0 released&lt;br /&gt;
* '''October 31, 2009:''' FlightGear wiki exceeded 3.000.000 pageviews&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;FlightGear Promotion&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;|&lt;br /&gt;
* [[FlightGear Reviews]]&lt;br /&gt;
* [[FlightGear Videos]]&lt;br /&gt;
* [[FlightGear on Facebook]]&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
__NOTOC__&lt;br /&gt;
__NOEDITSECTION__&lt;br /&gt;
&lt;br /&gt;
[[de:Hauptseite]]&lt;br /&gt;
[[es:Portada]]&lt;br /&gt;
[[fi:Etusivu]]&lt;br /&gt;
[[fr:Accueil]]&lt;br /&gt;
[[nl:Hoofdpagina]]&lt;br /&gt;
[[pt:Página principal]]&lt;br /&gt;
[[pl:Strona główna]]&lt;br /&gt;
[[ru:Заглавная страница]]&lt;br /&gt;
[[zh:Main Page]]&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Main_Page&amp;diff=22262</id>
		<title>Main Page</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Main_Page&amp;diff=22262"/>
		<updated>2010-06-14T17:48:00Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Add russian language menu item&lt;/p&gt;
&lt;hr /&gt;
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{| style=&amp;quot;width:100%; background:#efefef; margin-top:1.2em; border:1px solid #d9e2e2;&amp;quot;&lt;br /&gt;
|style=&amp;quot;width:100%; color:#000&amp;quot;| &lt;br /&gt;
&lt;br /&gt;
&amp;lt;!-------------&amp;quot;Welcome to FlightGear&amp;quot; and article count----------&amp;gt;&lt;br /&gt;
{| style=&amp;quot;width:100%; border:solid 0px; background:none;&amp;quot;&lt;br /&gt;
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&amp;lt;div style=&amp;quot;font-size:162%; border:none; margin:0; padding:.1em; color:#000;&amp;quot;&amp;gt;Welcome to the FlightGear Wiki!&amp;lt;/div&amp;gt;&lt;br /&gt;
&amp;lt;div id=&amp;quot;articlecount&amp;quot; style=&amp;quot;width:100%; text-align:center; font-size:85%;&amp;quot;&amp;gt;we now have [[Special:Statistics|{{NUMBEROFARTICLES}}]] articles&amp;lt;/div&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[file:de.gif|link=:de:Hauptseite]]&lt;br /&gt;
[[file:en.gif|link=:en:Main Page]]&lt;br /&gt;
[[file:es.gif|link=:es:Portada]]&lt;br /&gt;
[[file:fi.gif|link=:fi:Etusivu]]&lt;br /&gt;
[[file:fr.gif|link=:fr:Accueil]]&lt;br /&gt;
[[file:nl.gif|link=:nl:Hoofdpagina]]&lt;br /&gt;
[[file:pl.gif|link=:pl:Strona główna]]&lt;br /&gt;
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[[file:zh.gif|link=:zh:Main Page]]&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!--------------Portal list on righthand side----------&amp;gt;&lt;br /&gt;
|style=&amp;quot;width:11%; font-size:95%; color:#000;&amp;quot;|&lt;br /&gt;
|}&amp;lt;!--&lt;br /&gt;
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[[----------Strapline immediately below banner----------&amp;gt;&lt;br /&gt;
{|style=&amp;quot;width:100%; background:none; margin:-.8em 0 -.7em 0;&amp;quot;&lt;br /&gt;
|style=&amp;quot;font-size:95%; padding:10px 0; margin:0px; text-align:left; white-space:nowrap; color:#000;&amp;quot;| [[Help:Tutorial|Editing]]&amp;amp;nbsp;'''·''' [[Help:Contents|Help]]&lt;br /&gt;
|style=&amp;quot;font-size:95%; padding:10px 0; margin:0px; text-align: right; white-space:nowrap; color:#000;&amp;quot;| [[Special:Allpages|All pages]]&amp;amp;nbsp;'''·''' [[Special:Search|Search]]&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
{|style=&amp;quot;border-spacing:8px; margin:0px -8px;&amp;quot;&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:100%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top; color:#000;&amp;quot;|&lt;br /&gt;
{|width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;1&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;FlightGear Flight Simulator&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
'''[[FlightGear]]''' is a sophisticated, realistic flight-simulator, created entirely by volunteers, and released as free, open-source [[GNU General Public License|GPL]] software, available for download [http://www.flightgear.org/Downloads/ here]. FlightGear has a graphical user interface realistic enough for real-life pilot training, and mathematical flight models accurate enough for serious scientific research. FlightGear's free and open license also makes it great for educational exploration, or just for fun.&lt;br /&gt;
&lt;br /&gt;
FlightGear can be expanded and improved by anyone interested in [[Volunteer|contributing]]. The complete project source code is available via [[Git]], licensed under the [[GNU General Public License]]. FlightGear's open architecture encourages the exploration of a wide variety of flight simulator concepts, and has inspired a number of [[FlightGear related projects|related projects]].  &lt;br /&gt;
&lt;br /&gt;
FlightGear comes with a set of illustrated documentation, notably &amp;quot;The Manual&amp;quot;, which is available as [http://mapserver.flightgear.org/getstart.pdf PDF] and [http://www.flightgear.org/Docs/getstart/getstart.html HTML].&lt;br /&gt;
&lt;br /&gt;
{|style=&amp;quot;background:none;&amp;quot;&lt;br /&gt;
|style=&amp;quot;font-size:100%; padding-left:10px; padding-right:20px; margin:0px; vertical-align: top; text-align:left; white-space:nowrap; color:#000;&amp;quot;| &lt;br /&gt;
* '''[[Portal:User|Getting Started]]'''&lt;br /&gt;
** [[New to FlightGear]]&lt;br /&gt;
** [[FAQ]]&lt;br /&gt;
** [[:Category:Howto|Tutorials]]&lt;br /&gt;
**'''[[Portal:User|More...]]'''&lt;br /&gt;
|style=&amp;quot;font-size:100%; padding-left:20px; margin:0px; vertical-align: top; text-align: left; border-left: 2px solid #d9e2e2; white-space:nowrap; color:#000;&amp;quot;| &lt;br /&gt;
* '''[[Portal:Pilot|Using FlightGear]]'''&lt;br /&gt;
** [[Aircraft|Additional Aircraft]]&lt;br /&gt;
** [[Flying the helicopter|Helicopter flying]]&lt;br /&gt;
** [[Portal:Pilot|Advanced Pilot Training]]&lt;br /&gt;
** '''[[Portal:Pilot|More...]]'''&lt;br /&gt;
|style=&amp;quot;font-size:100%; padding-left:20px; margin:0px; vertical-align: top; text-align: left; border-left: 2px solid #d9e2e2; white-space:nowrap; color:#000;&amp;quot;| &lt;br /&gt;
* '''[[Portal:Developer|Developing FlightGear]]'''&lt;br /&gt;
** [[Portal:Developer/Aircraft|Creating Aircraft]]&lt;br /&gt;
** [[Portal:Developer/Scenery|Creating Scenery]]&lt;br /&gt;
** [[Building FlightGear]]&lt;br /&gt;
** '''[[Portal:Developer|More...]]'''&lt;br /&gt;
|}&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!---------------------------Today's featured article, Did you know------------------------&amp;gt;&lt;br /&gt;
{|style=&amp;quot;border-spacing:8px; margin:0px -8px;&amp;quot;&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:50%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top; color:#000;&amp;quot;|&lt;br /&gt;
{|width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;2&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;FlightGear Features&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* '''[[Aircraft]]'''&lt;br /&gt;
** FlightGear simulates aircraft from hang-gliders to jumbo jets&lt;br /&gt;
** Aircraft from 14 categories are included with the basic package&lt;br /&gt;
** [[Table of models|Dozens of additional aircraft]] are available for download&lt;br /&gt;
** You can create your own aircraft design, or edit existing models&lt;br /&gt;
&lt;br /&gt;
* '''[[:Category:Airports|Airports]]'''&lt;br /&gt;
** FlightGear includes a current database of over 20,000 real airports&lt;br /&gt;
** Realistic runways and taxiways (and 3D buildings at some airports)&lt;br /&gt;
** Airport layouts and 3D models can be edited with free tools&lt;br /&gt;
&lt;br /&gt;
* '''[[Scenery]]'''&lt;br /&gt;
** Scenery is available for the entire world&lt;br /&gt;
** Accurate land elevation data is provided by [http://www.nasa.gov/ NASA]&lt;br /&gt;
** New scenery can be downloaded automatically while you fly&lt;br /&gt;
** Cities like San Francisco, Paris, Accra and Berlin include 3D buildings and landmarks.&lt;br /&gt;
** You can help create better world scenery with free software tools&lt;br /&gt;
&lt;br /&gt;
* '''GPL License'''&lt;br /&gt;
** FlightGear is free, open-source [[GPL]] software&lt;br /&gt;
** Open architecture encourages [[FlightGear related projects|Related Projects]]&lt;br /&gt;
|-&lt;br /&gt;
&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Did you know...&amp;lt;/h2&amp;gt;   &lt;br /&gt;
|-   &lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;|  &lt;br /&gt;
{{Did you know}}&lt;br /&gt;
 &lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!----------------------------------In the news, On this day-------------------------------&amp;gt;&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:50%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top&amp;quot;|&lt;br /&gt;
{| width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;2&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Picture of the week&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
{{POTW/{{CURRENTYEAR}}-{{CURRENTWEEK}}}}&lt;br /&gt;
|-   &lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;News&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[FlightGear Newsletter {{MONTHNAME|{{LASTMONTHNAME}}}} {{CURRENTYEAR}}]] ([[:Category:FlightGear Newsletter|all newsletters]])&lt;br /&gt;
&lt;br /&gt;
* '''May 2010:''' FlightGear wiki exceeded 4.000.000 pageviews&lt;br /&gt;
* '''February 25 2010:''' [[FlightGear]] 2.0.0 released&lt;br /&gt;
* '''October 31 2009:''' FlightGear wiki exceeded 3.000.000 pageviews&lt;br /&gt;
* '''December 22 2008:''' [[FlightGear 1.9.0]] released&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;FlightGear Promotion&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;|&lt;br /&gt;
* [[FlightGear Reviews]]&lt;br /&gt;
* [[FlightGear Videos]]&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
__NOTOC__&lt;br /&gt;
__NOEDITSECTION__&lt;br /&gt;
&lt;br /&gt;
[[de:Hauptseite]]&lt;br /&gt;
[[es:Portada]]&lt;br /&gt;
[[fi:Etusivu]]&lt;br /&gt;
[[fr:Accueil]]&lt;br /&gt;
[[nl:Hoofdpagina]]&lt;br /&gt;
[[pt:Página principal]]&lt;br /&gt;
[[pl:Strona główna]]&lt;br /&gt;
[[zh:Main Page]]&lt;br /&gt;
[[ru:Русский]]&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Help:Translate&amp;diff=15581</id>
		<title>Help:Translate</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Help:Translate&amp;diff=15581"/>
		<updated>2009-09-30T14:11:29Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: add link to language codes&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Since last September 2009, the [[Main Page|FlightGear Wiki]] supports multiple languages. From now on every article can be translated into any language, increasing the user friendliness for non-native English speaking users. &lt;br /&gt;
&lt;br /&gt;
===We need YOU!===&lt;br /&gt;
As we have {{NUMBEROFARTICLES}} articles (some are smaller than others) it is a hell lot of work to translate all those pages. A couple of users already started translating, but we defenitely could use some help, to be precise: your help! (Almost) Everyone speaks more then one language, I won't be suprised if most of the FG users are non-native English speakers.&lt;br /&gt;
&lt;br /&gt;
If we all just translate one or two pages every now and then, it would not take *that* long to have atleast the most important articles (like [[Flying the helicopter]], [[FlightGear]], [[Installing Scenery]] and [[New to FlightGear]]).&lt;br /&gt;
&lt;br /&gt;
===Examples===&lt;br /&gt;
For examples of already translated (only into a couple of languages) articles, take a look at the [[Main Page]].&lt;br /&gt;
&lt;br /&gt;
===How do I start translating?===&lt;br /&gt;
First you need to find an article that you like to translate. Then in the URL bar of your browser, add a slash (/) followed by the abbreviation of your desired language (see &lt;br /&gt;
[http://svn.wikimedia.org/svnroot/mediawiki/trunk/phase3/languages/Names.php here] for a list) and go to that page. So if I wanted to translate the TerraSync article into Dutch, I would visit the [[TerraSync/nl]] page. As you can see this page does not exist yet, so we are sure no-one translated it in Dutch so far.&lt;br /&gt;
&lt;br /&gt;
Now we translate the actual article. You can leave wiki links as they are (pointing to he English article), unless the article is translated into the language of your article. In that case you make a wiki link like this: &amp;lt;tt&amp;gt;&amp;lt;nowiki&amp;gt;[[Main Page/nl|Hoofdpagina]]&amp;lt;/nowiki&amp;gt;&amp;lt;/tt&amp;gt;. Only [[Main Page/nl|Hoofdpagina]] will be shown in the article, but it points to [[Main Page/nl]].&lt;br /&gt;
&lt;br /&gt;
At the far top (but below the afd, stub and cleanup templates) you need to place the Language selection bar template. It is very straight forward. Just add this:&lt;br /&gt;
 &amp;lt;nowiki&amp;gt;{{Languages|PageName}}&amp;lt;/nowiki&amp;gt;&lt;br /&gt;
The PageName is the name of the original (English) article, so without the language prefix (/nl, /de, /fr etc.). So for the Main Page that would be&lt;br /&gt;
 &amp;lt;nowiki&amp;gt;{{Languages|Main Page}}&amp;lt;/nowiki&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Add this template also to the English version of the article (if not already done).&lt;br /&gt;
&lt;br /&gt;
'''Thanks a lot for your translations or any other contributions you make to the wiki! Your hard work is really appreciate by all FG users!'''&lt;br /&gt;
&lt;br /&gt;
[[Category:Help|Translate]]&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Piper_Aerostar&amp;diff=15305</id>
		<title>Piper Aerostar</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Piper_Aerostar&amp;diff=15305"/>
		<updated>2009-09-28T14:51:14Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Reverted edits by Hellosimon (Talk) to last revision by D-HARP&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{infobox Aircraft&lt;br /&gt;
|image =Aerostar_700.jpg&lt;br /&gt;
|alt =Aerostar Super 700&lt;br /&gt;
|name =Aerostar 700&lt;br /&gt;
|authors =Syd Adams&lt;br /&gt;
|type =Civilian aircraft&lt;br /&gt;
|fdm =YASim&lt;br /&gt;
|status =Development&lt;br /&gt;
|fgname =&amp;lt;tt&amp;gt;aerostar700&amp;lt;/tt&amp;gt;&lt;br /&gt;
|download =http://flightgear.org/Downloads/aircraft/#Aerostar-700&lt;br /&gt;
|ratingfdm =5&lt;br /&gt;
|ratingexterior =5&lt;br /&gt;
|ratingcockpit =5&lt;br /&gt;
|ratingsounds =4&lt;br /&gt;
}}&lt;br /&gt;
The Piper Aerostar or Ted Smith Aerostar is an American twin-engined propeller-driven executive or light transport aircraft, designed by Ted R. Smith. It was originally built by Ted Smith Aircraft Company, which after 1987 became part of the Piper Aircraft Corporation.&lt;br /&gt;
&lt;br /&gt;
==Variants==&lt;br /&gt;
Currently only one variant is modeled in FlightGear:&lt;br /&gt;
* '''700 Superstar:''' prototype of stretched fuselage variant with two IO-540M engines&lt;br /&gt;
&lt;br /&gt;
[[Image:Aerostar_700_Cockpit.jpg|thumb|270px|The [[cockpit]] of an Aerostar 700]]&lt;br /&gt;
&lt;br /&gt;
{{Piper}}&lt;br /&gt;
&lt;br /&gt;
=== Related lists ===&lt;br /&gt;
* [[Aircraft]]&lt;br /&gt;
* [[Aircraft Todo]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Aircraft]]&lt;br /&gt;
[[Category:Aircraft TODO]]&lt;br /&gt;
[[Category:Civilian aircraft]]&lt;br /&gt;
[[Category:Twin Engine Piston]]&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Piper_Aerostar&amp;diff=15298</id>
		<title>Piper Aerostar</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Piper_Aerostar&amp;diff=15298"/>
		<updated>2009-09-28T14:36:39Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{infobox Aircraft&lt;br /&gt;
|image =Aerostar_700.jpg&lt;br /&gt;
|alt =Aerostar Super 700&lt;br /&gt;
|name =Aerostar 700&lt;br /&gt;
|authors =Syd Adams&lt;br /&gt;
|type =Civilian aircraft&lt;br /&gt;
|fdm =YASim&lt;br /&gt;
|status =Development&lt;br /&gt;
|fgname =&amp;lt;tt&amp;gt;aerostar700&amp;lt;/tt&amp;gt;&lt;br /&gt;
|download =http://flightgear.org/Downloads/aircraft/#Aerostar-700&lt;br /&gt;
|ratingfdm =5&lt;br /&gt;
|ratingexterior =5&lt;br /&gt;
|ratingcockpit =5&lt;br /&gt;
|ratingsounds =4&lt;br /&gt;
}}&lt;br /&gt;
The Piper Aerostar or Ted Smith Aerostar is an American twin-engined propeller-driven executive or light transport aircraft, designed by Ted R. Smith. It was originally built by Ted Smith Aircraft Company, which after 1987 became part of the Piper Aircraft Corporation.&lt;br /&gt;
&lt;br /&gt;
==Variants==&lt;br /&gt;
Currently only one variant is modeled in FlightGear:&lt;br /&gt;
* '''700 Superstar:''' prototype of stretched fuselage variant with two IO-540M engines&lt;br /&gt;
&lt;br /&gt;
[[Image:Aerostar_700_Cockpit.jpg|thumb|270px|The [[cockpit]] of an Aerostar 700]]&lt;br /&gt;
&lt;br /&gt;
{{Piper}}&lt;br /&gt;
&lt;br /&gt;
=== Related lists ===&lt;br /&gt;
* [[Aircraft]]&lt;br /&gt;
* [[Aircraft Todo]]&lt;br /&gt;
&lt;br /&gt;
Test:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;w4g_ratingbar/&amp;gt; &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Category:Aircraft]]&lt;br /&gt;
[[Category:Aircraft TODO]]&lt;br /&gt;
[[Category:Civilian aircraft]]&lt;br /&gt;
[[Category:Twin Engine Piston]]&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15297</id>
		<title>MediaWiki:Titleblacklist</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15297"/>
		<updated>2009-09-28T14:13:46Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt; # This is a title blacklist. Titles and users that match a regular expression here cannot be created.&lt;br /&gt;
 # Use &amp;quot;#&amp;quot; for comments.&lt;br /&gt;
 # This is case insensitive by default&lt;br /&gt;
&lt;br /&gt;
 Xiao.* &amp;lt;newaccountonly&amp;gt; # Block spamming user creation&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15296</id>
		<title>MediaWiki:Titleblacklist</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15296"/>
		<updated>2009-09-28T14:09:55Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt; # This is a title blacklist. Titles and users that match a regular expression here cannot be created.&lt;br /&gt;
 # Use &amp;quot;#&amp;quot; for comments.&lt;br /&gt;
 # This is case insensitive by default&lt;br /&gt;
&lt;br /&gt;
 Xiao &amp;lt;newaccountonly&amp;gt; # Block spamming user creation&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15295</id>
		<title>MediaWiki:Titleblacklist</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15295"/>
		<updated>2009-09-28T14:07:38Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt; # This is a title blacklist. Titles and users that match a regular expression here cannot be created.&lt;br /&gt;
 # Use &amp;quot;#&amp;quot; for comments.&lt;br /&gt;
 # This is case insensitive by default&lt;br /&gt;
&lt;br /&gt;
 Xiao* &amp;lt;newaccountonly&amp;gt; # Block spamming user creation&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15294</id>
		<title>MediaWiki:Titleblacklist</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15294"/>
		<updated>2009-09-28T14:03:01Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt; # This is a title blacklist. Titles and users that match a regular expression here cannot be created.&lt;br /&gt;
 # Use &amp;quot;#&amp;quot; for comments.&lt;br /&gt;
 # This is case insensitive by default&lt;br /&gt;
&lt;br /&gt;
 Xiaoyuokok* &amp;lt;newaccountonly&amp;gt;&lt;br /&gt;
 Foo&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15292</id>
		<title>MediaWiki:Titleblacklist</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15292"/>
		<updated>2009-09-28T13:47:23Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;# This is a title blacklist. Titles and users that match a regular expression here cannot be created.&lt;br /&gt;
# Use &amp;quot;#&amp;quot; for comments.&lt;br /&gt;
# This is case insensitive by default&lt;br /&gt;
Xiaoyuokok* &amp;lt;newaccountonly&amp;gt;&lt;br /&gt;
Foo &amp;lt;autoconfirmed|noedit|errmsg=blacklisted-testpage&amp;gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15291</id>
		<title>MediaWiki:Titleblacklist</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=MediaWiki:Titleblacklist&amp;diff=15291"/>
		<updated>2009-09-28T13:40:42Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: test new user blacklist&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;# This is a title blacklist. Titles and users that match a regular expression here cannot be created.&lt;br /&gt;
# Use &amp;quot;#&amp;quot; for comments.&lt;br /&gt;
# This is case insensitive by default&lt;br /&gt;
Xiaoyuokok* &amp;lt;newaccountonly&amp;gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Fg_trails_large.png&amp;diff=14887</id>
		<title>File:Fg trails large.png</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:Fg_trails_large.png&amp;diff=14887"/>
		<updated>2009-09-21T19:19:49Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: uploaded a new version of &amp;quot;File:Fg trails large.png&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=FlightGear_logos&amp;diff=14884</id>
		<title>FlightGear logos</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=FlightGear_logos&amp;diff=14884"/>
		<updated>2009-09-21T19:17:11Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Feel free to add your FlightGear logo here :&lt;br /&gt;
&lt;br /&gt;
== Official logo ==&lt;br /&gt;
[[Image:Fglogosm.jpg]]&lt;br /&gt;
&lt;br /&gt;
* Author: Michael Smith ([http://flightgear.org/thanks.shtml ?])&lt;br /&gt;
* Source: [http://www.flightgear.org www.flightgear.org]&lt;br /&gt;
&lt;br /&gt;
== A-10 Logo ==&lt;br /&gt;
&lt;br /&gt;
[[Image:Wiki_logo.png]]&lt;br /&gt;
&lt;br /&gt;
* Author: Wes Summers&lt;br /&gt;
* License: http://creativecommons.org/licenses/by-sa/3.0/&lt;br /&gt;
* Source: [[Media:A-10_logo.pdf| Illustrator PDF]]&lt;br /&gt;
&lt;br /&gt;
== New Test Logo ==&lt;br /&gt;
[[Image:Flightgear-logov2.png]]&lt;br /&gt;
&lt;br /&gt;
* Author: BBCTV (Japanese Flightgear User)&lt;br /&gt;
* License: Copyright Flightgear&lt;br /&gt;
* Source: Made with Adobe Illustrator&lt;br /&gt;
&lt;br /&gt;
== Set of logos for Wiki ==&lt;br /&gt;
&lt;br /&gt;
[[Image:Fg_trails_lc.png]]  [[Image:Fg_wings_large.png]] [[Image:Fg_wings_up.png]] [[Image:Fg_trails_large.png]]&lt;br /&gt;
&lt;br /&gt;
* Author: Wes Summers&lt;br /&gt;
* License: http://creativecommons.org/licenses/by/3.0/&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Fg_wings_up.png&amp;diff=14882</id>
		<title>File:Fg wings up.png</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:Fg_wings_up.png&amp;diff=14882"/>
		<updated>2009-09-21T19:11:50Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: uploaded a new version of &amp;quot;File:Fg wings up.png&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Fg_wings_large.png&amp;diff=14881</id>
		<title>File:Fg wings large.png</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:Fg_wings_large.png&amp;diff=14881"/>
		<updated>2009-09-21T19:09:58Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: uploaded a new version of &amp;quot;File:Fg wings large.png&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Fg_trails_lc.png&amp;diff=14869</id>
		<title>File:Fg trails lc.png</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:Fg_trails_lc.png&amp;diff=14869"/>
		<updated>2009-09-21T14:02:12Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: uploaded a new version of &amp;quot;File:Fg trails lc.png&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=FlightGear_logos&amp;diff=14868</id>
		<title>FlightGear logos</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=FlightGear_logos&amp;diff=14868"/>
		<updated>2009-09-21T13:42:15Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: new wiki logos&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Feel free to add your FlightGear logo here :&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== A-10 Logo ==&lt;br /&gt;
&lt;br /&gt;
[[Image:Wiki_logo.png]]&lt;br /&gt;
&lt;br /&gt;
* Author: Wes Summers&lt;br /&gt;
* License: http://creativecommons.org/licenses/by-sa/3.0/&lt;br /&gt;
* Source: [[Media:A-10_logo.pdf| Illustrator PDF]]&lt;br /&gt;
&lt;br /&gt;
== New Test Logo ==&lt;br /&gt;
[[Image:Flightgear-logov2.png]]&lt;br /&gt;
&lt;br /&gt;
* Author: BBCTV (Japanese Flightgear User)&lt;br /&gt;
* License: Copyright Flightgear&lt;br /&gt;
* Source: Made with Adobe Illustrator&lt;br /&gt;
&lt;br /&gt;
== Set of logos for Wiki ==&lt;br /&gt;
&lt;br /&gt;
[[Image:Fg_trails_lc.png]] [[Image:Fg_trails_uc.png]] [[Image:Fg_wings_large.png]] [[Image:Fg_wings_up.png]] [[Image:Fg_trails_large.png]]&lt;br /&gt;
&lt;br /&gt;
* Author: Wes Summers&lt;br /&gt;
* License: http://creativecommons.org/licenses/by/3.0/&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Fg_wings_up.png&amp;diff=14867</id>
		<title>File:Fg wings up.png</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:Fg_wings_up.png&amp;diff=14867"/>
		<updated>2009-09-21T13:34:48Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Fg_wings_large.png&amp;diff=14866</id>
		<title>File:Fg wings large.png</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:Fg_wings_large.png&amp;diff=14866"/>
		<updated>2009-09-21T13:34:30Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Fg_trails_uc.png&amp;diff=14865</id>
		<title>File:Fg trails uc.png</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:Fg_trails_uc.png&amp;diff=14865"/>
		<updated>2009-09-21T13:34:19Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Fg_trails_lc.png&amp;diff=14864</id>
		<title>File:Fg trails lc.png</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:Fg_trails_lc.png&amp;diff=14864"/>
		<updated>2009-09-21T13:34:05Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Fg_trails_large.png&amp;diff=14863</id>
		<title>File:Fg trails large.png</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:Fg_trails_large.png&amp;diff=14863"/>
		<updated>2009-09-21T13:33:42Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=User_talk:Hellosimon&amp;diff=14774</id>
		<title>User talk:Hellosimon</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=User_talk:Hellosimon&amp;diff=14774"/>
		<updated>2009-09-18T17:25:02Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: upgrade notice&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Upgraded MediaWiki to 1.15.1 from 1.11.   Converted database character set from latin1 to UTF-8. Document any errors with garbled characters or pages not working here.  [[User:Hellosimon|Hellosimon]] 17:25, 18 September 2009 (UTC)&lt;br /&gt;
&lt;br /&gt;
Mediawiki has been updated to 1.6.7.  Email me (hellosimon at gmail com) with any site problems.  [[User:Hellosimon|Hellosimon]] 12:16, 10 June 2006 (EDT)&lt;br /&gt;
:Isn't it time to upgrade the wiki to the latest version (1.15)? There's a lot improved over de past three years ;)&lt;br /&gt;
:Regards, [[User:Gijs|Gijs]] 08:22, 8 September 2009 (EDT)&lt;br /&gt;
&lt;br /&gt;
The rss and atom feeds have been fixed - There were extra newlines that needed to be removed at the end of LocalSettings.php [[User:Hellosimon|Hellosimon]] 13:12, 20 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
I've now restricted edits to users who have confirmed their email address.  I've done this because I think we have some spam bot users and a captcha won't help those at this point.  Also, I plan on updating medawiki to 1.7.x after I test the upgrade on a local mirror. [[User:Hellosimon|Hellosimon]] 11:21, 18 July 2006 (EDT)&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Portal:Developer&amp;diff=6305</id>
		<title>Portal:Developer</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Portal:Developer&amp;diff=6305"/>
		<updated>2008-08-12T03:00:33Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: add link&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;div align=&amp;quot;center&amp;quot;&amp;gt;&lt;br /&gt;
[[Portal:Developer|Developer]] - [[Portal:User|User]]&lt;br /&gt;
&amp;lt;/div&amp;gt;&lt;br /&gt;
&lt;br /&gt;
{|style=&amp;quot;border-spacing:8px; margin:0px -8px;&amp;quot;&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:100%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top; color:#000;&amp;quot;|&lt;br /&gt;
{|width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;1&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;The Developer Portal&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
This portal is for developers contributing to FlightGear. If you wanna help with FlightGears development, it's a good idea to subscribe yourself to the [http://lists.sourceforge.net/lists/listinfo/flightgear-devel FlightGear devel] mailing list. The [http://sourceforge.net/mailarchive/forum.php?forum_name=flightgear-devel list archive] is also available and should be searched before posting the same question.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;br /&gt;
'''The FlightGear project is looking for organizations/individuals who would be willing to help sponsor a fulltime project coordinator/manager to help oversee the overall development process If you are interested in helping or have anything else to contribute to this issue, please subscribe to the the [http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg11813.html FlightGear Devel mailing list] to discuss details.'''&lt;br /&gt;
|}&lt;br /&gt;
|}&lt;br /&gt;
&amp;lt;!--&lt;br /&gt;
&lt;br /&gt;
-------------------------Today's featured article, Did you know------------------------&amp;gt;&lt;br /&gt;
{|style=&amp;quot;border-spacing:8px; margin:0px -8px;&amp;quot;&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:50%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top; color:#000;&amp;quot;|&lt;br /&gt;
{|width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;2&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Latest Organizational Issues&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Project Infrastructure Enhancements ]]&lt;br /&gt;
* [[Google Summer of Code Candidate Projects]] - application template to allow community members to prepare a possible application to decrease the effort required to actually apply&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Background Info&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[Resources]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Current Efforts/Branches &amp;amp; Work in Progress&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [http://www.flightgear.org/forums/viewtopic.php?t=1378 Efforts to create photo realistic scenery for FlightGear] (Images: [http://www.brest-metropole-oceane.fr/vueduciel/images/101_106.jpg] [http://blaniel.free.fr/pub/flightgear/brest/brest1.png] [http://helijah.free.fr/LFRB/fgfs-screen-001.jpg] [http://helijah.free.fr/LFRB/fgfs-screen-003.jpg]&lt;br /&gt;
* [http://www.flightgear.org/forums/viewtopic.php?t=755 New aircraft model under development: Bede BD-5J]&lt;br /&gt;
* [http://www.flightgear.org/forums/viewtopic.php?t=542 F14-Tomcat aircraft model under development]&lt;br /&gt;
* [http://www.flightgear.org/forums/viewtopic.php?t=1001 787 being revamped]&lt;br /&gt;
* [http://www.flightgear.org/forums/viewtopic.php?t=1436 LFLJ enhancements]&lt;br /&gt;
* [http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg16176.html Free Walking mode for FlightGear using the Jeep vehicle in CVS]&lt;br /&gt;
* [http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg15388.html Random Trees for FlightGear]&lt;br /&gt;
&lt;br /&gt;
'''[[Work in progress|More...]]'''&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Compiling&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Building Flightgear ]]&lt;br /&gt;
* [[ Building Flightgear - Windows]]&lt;br /&gt;
* [[ Building FlightGear Launch Control ]]&lt;br /&gt;
* [[ Building Terragear ]]&lt;br /&gt;
* [[ Keeping FlightGear (win32) up to date without compiling]]&lt;br /&gt;
* [[ OpenSceneGraph ]]&lt;br /&gt;
* [[ Tools of the Trade ]]&lt;br /&gt;
* [[ Using TortoiseCVS with FlightGear ]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Contributing&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Code Cleanup ]] &lt;br /&gt;
* [[ Contributor Repositories ]] mirrors, branches and forks privately maintained by contributors&lt;br /&gt;
* [[ Development Resources ]]&lt;br /&gt;
* [[ Extension Support ]]&lt;br /&gt;
* [[ Submitting Patches ]] &lt;br /&gt;
* [[ Technical Reports ]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Code Internals&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Commands ]] &lt;br /&gt;
* [[ FDM API ]]&lt;br /&gt;
* [[ File Formats ]]&lt;br /&gt;
* [[ Initialization Sequence ]]&lt;br /&gt;
* [[ Nasal scripting language ]]&lt;br /&gt;
* [[ Property Tree ]]&lt;br /&gt;
* [[ Subsystems ]] &lt;br /&gt;
* [[ UML Diagrams ]]&lt;br /&gt;
* [[ YASim ]]&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:50%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top&amp;quot;|&lt;br /&gt;
{| width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;2&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Todo&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Bugs ]]&lt;br /&gt;
* [[ Feature Requests / Proposals / Ideas ]]&lt;br /&gt;
* [[ FGFS Todo ]]&lt;br /&gt;
* [[ FlightGear Expo Checklist ]]&lt;br /&gt;
* [[ Long Term Goals ]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Done&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Changes since 0.9.10 ]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;HowTos&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[Howto: Add smooth (&amp;quot;Ambient Occlusion&amp;quot;) shadows in Blender|Add smooth shadows in Blender]]&lt;br /&gt;
* [[Howto: 3D Aircraft Models|3D Aircraft Models]]&lt;br /&gt;
* [[Howto: Add aircraft lights|Add aircraft lights]]&lt;br /&gt;
* [[Howto: Edit a livery|Edit a livery]]&lt;br /&gt;
* [[Howto: Illuminate faces|Illuminate faces]]&lt;br /&gt;
* [[Howto: Make a helicopter|Make a helicopter]]&lt;br /&gt;
* [[Howto: Set up a multiplayer server|Set up a multiplayer server]]&lt;br /&gt;
'''[[:Category:Howto|More...]]'''&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Instrumentation&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Creating instruments for FG ]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Nasal scripting&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Nasal scripting language ]]&lt;br /&gt;
* [[ Writing simple scripts in %22nasal%22 ]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Autopilot configuration&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [http://www.flightgear.org/Docs/XMLAutopilot/ FlightGear Autopilot] (Theory, Configuration, and Tuning)&lt;br /&gt;
* [[ Autopilot Tuning Resources ]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;3D Modeling&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Howto: 3D Aircraft Models|3D Aircraft Models]] (howto)&lt;br /&gt;
* [[ Aircraft Information Resources ]]&lt;br /&gt;
* [[ Model Import and Export ]]&lt;br /&gt;
* [[ Modeling - FAQ ]]&lt;br /&gt;
* [[ Modeling - Getting Started ]]&lt;br /&gt;
* [[ Modeling Resources ]]&lt;br /&gt;
* [[ Modeling - SketchUp]]&lt;br /&gt;
* [[ Normals and Transparency Tutorial ]]&lt;br /&gt;
* [http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro Blender3D Modeling]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Scenery&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Blender Ground Signs Tutorial]]&lt;br /&gt;
* [[ Placing 3D Objects with the UFO ]]&lt;br /&gt;
* [[ Signs ]] (placing and explanation)&lt;br /&gt;
* [[ Using Terragear ]]&lt;br /&gt;
* [[ Using the Custom Scenery TerraGear Toolset ]]&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
__NOTOC__&lt;br /&gt;
__NOEDITSECTION__&lt;br /&gt;
&lt;br /&gt;
== Developer Documentation ==&lt;br /&gt;
=== RFC Topics ===&lt;br /&gt;
'''Clarification:'''In its current form, the RFC section is exclusively based on and covered by previous mailing list and forum discussions (as well as various wiki entries), as such it is not supposed to reflect work in progress (RFC=&amp;quot;Request For Comments&amp;quot; and not WIP), but is rather to be seen as an attempt to provide comprehensive analyses and summaries of key issues identified in various FlightGear related discussions and feature requests (which are to be linked to in the corresponding resource sections, if that didn't yet take place, it's because of most of these RFCs being indeed WIP).&lt;br /&gt;
 &lt;br /&gt;
Thus, RFC entries are not meant to imply anyone &amp;quot;working&amp;quot; on any of these issues, in fact only because an RFC entry is listed here doesn't necessarily mean that work on that particular issue is endorsed by the FlightGear community. &lt;br /&gt;
&lt;br /&gt;
* [[Next Generation Scenery ]] - revamping the FG scenery engine&lt;br /&gt;
* [[Keyboard function priority list]] - reorganizing FlightGear keybindings&lt;br /&gt;
* [[FlightGear Sessions]] - discussing possible steps to finally allow aircraft to be reliably switched at runtime&lt;br /&gt;
* [[Formalizing Aircraft Status]] - discussing suggestions about how to more properly describe aircraft development status&lt;br /&gt;
* [[Simplifying Aircraft Deployment]] - identifying potential steps to simplify deployment of FlightGear aircraft&lt;br /&gt;
* [[FDM engine feature standardization]] - discussing possible steps to standardize feature support of mainstream FlightGear FDM engines&lt;br /&gt;
* [[FlightGear Glass Cockpits]] - discussing required infrastructure changes to enable non-developers to easily access FlightGear-internals in order to enable them to model complex glass cockpit-type aircraft instrumentation systems&lt;br /&gt;
* [[Recommended Property Tree Enhancements]] - discussing possible property tree enhancements to help ensure integrity of crucial runtime state&lt;br /&gt;
* [[Backwards Compatibility Initiative]] - discussing possible ways to improve FlightGear's backwards compatibility &lt;br /&gt;
* [[Recommended Project Policies]] - discussing recommended policies for future contributions to the project&lt;br /&gt;
* [[Distributed Interactive Simulation]] - discussing possible steps to prepare FlightGear for HLA&lt;br /&gt;
* [[Property Tree Reorganization]] - reorganizing the property tree (i.e. implementing and enforcing existing property/node naming conventions)&lt;br /&gt;
&lt;br /&gt;
=== Miscellaneous ===&lt;br /&gt;
* [[ Glass Cockpit Projects ]]&lt;br /&gt;
* [[ Copyright Inquiry ]]&lt;br /&gt;
* [http://www.cafepress.com/fgfs_gear FlightGear - Gear] &lt;br /&gt;
* [[ Sign Specification Proposal ]]&lt;br /&gt;
&lt;br /&gt;
== Middleware &amp;amp; Base Package Development ==&lt;br /&gt;
&lt;br /&gt;
* [[:Category:Aircraft TODO]]&lt;br /&gt;
&lt;br /&gt;
=== Misc ===&lt;br /&gt;
* [[FGSD- How to make a airport]]&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Portal:User&amp;diff=6160</id>
		<title>Portal:User</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Portal:User&amp;diff=6160"/>
		<updated>2008-07-10T16:36:04Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: add link to logo repository&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;div align=&amp;quot;center&amp;quot;&amp;gt;&lt;br /&gt;
[[Portal:Developer|Developer]] - [[Portal:User|User]]&lt;br /&gt;
&amp;lt;/div&amp;gt;&lt;br /&gt;
&lt;br /&gt;
{|style=&amp;quot;border-spacing:8px; margin:0px -8px;&amp;quot;&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:100%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top; color:#000;&amp;quot;|&lt;br /&gt;
{|width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;1&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;The User Portal&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
This portal is for the users of FlightGear. To be sure you get the latest news, it's a good idea to subscribe yourself to the [http://lists.sourceforge.net/lists/listinfo/flightgear-users FlightGear users] -mailing list. An [http://sourceforge.net/mailarchive/forum.php?forum_name=flightgear-users archive of the list] is available and should be checked before asking again.&lt;br /&gt;
|}&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
{|style=&amp;quot;border-spacing:8px; margin:0px -8px;&amp;quot;&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:50%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top; color:#000;&amp;quot;|&lt;br /&gt;
{|width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;2&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Getting Started&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ New to FlightGear ]]&lt;br /&gt;
* [[ FlightGear Manual ]]&lt;br /&gt;
* [[ FAQ ]]&lt;br /&gt;
* [[ Features ]]&lt;br /&gt;
* [[ Hardware Recommendations ]]&lt;br /&gt;
* [[ Notebooks known to run FlightGear]]&lt;br /&gt;
* [[ Real Life Experience ]]&lt;br /&gt;
* [[ Recommended Software ]]&lt;br /&gt;
* [[ Troubleshooting Problems ]]&lt;br /&gt;
* [[ Volunteer ]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Configuring Flightgear&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Command Line Parameters ]]&lt;br /&gt;
* [[ Downloading New Flightgear Scenery for Windows XP]]&lt;br /&gt;
* [[ Installing Scenery ]]&lt;br /&gt;
* [[ Improving Framerates ]]&lt;br /&gt;
* [[ Linux software audio mixing with FlightGear ]]&lt;br /&gt;
* [[ Multiplayer Howto ]]&lt;br /&gt;
* [http://www.inkdrop.net/dave/multimon.pdf Using multiple monitors with FlightGear]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Using Flightgear&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Aircraft ]]&lt;br /&gt;
* [[ Helicopter ]]&lt;br /&gt;
* [[ Vehicle ]]&lt;br /&gt;
* [[ Doing aerotow over the net ]]&lt;br /&gt;
* [[ Dual control ]]&lt;br /&gt;
* [[ Flying the Helicopter ]]&lt;br /&gt;
* [[ Instant Replay ]]&lt;br /&gt;
* [[ Preset Properties ]]&lt;br /&gt;
* [[ Realism ]]&lt;br /&gt;
* [[ Starting in the Air ]]&lt;br /&gt;
* [[ Suggested Aircraft ]]&lt;br /&gt;
* [[ Suggested Airports/Scenery ]]&lt;br /&gt;
* [[ Suggested Flights ]]&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
|class=&amp;quot;MainPageBG&amp;quot; style=&amp;quot;width:50%; border:1px solid #d9e2e2; background:#efefef; vertical-align:top&amp;quot;|&lt;br /&gt;
{| width=&amp;quot;100%&amp;quot; cellpadding=&amp;quot;2&amp;quot; cellspacing=&amp;quot;5&amp;quot; style=&amp;quot;vertical-align:top; background:#efefef;&amp;quot;&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Interactive Scenarios&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;|&lt;br /&gt;
* [[ AI Systems ]] &lt;br /&gt;
* [[ Interactive Traffic ]]&lt;br /&gt;
* [[ Soaring ]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Howtos&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;|&lt;br /&gt;
* [[Howto: Air-Air Refueling|Air-Air Refueling]]&lt;br /&gt;
* [[Howto: Be a controller|Be a controller]]&lt;br /&gt;
* [[Howto: Carrier|Carrier]]&lt;br /&gt;
* [[Howto: Multiplayer|Multiplayer]]&lt;br /&gt;
'''[[:Category:Howto|More...]]'''&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Tutorials&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;|&lt;br /&gt;
* [[ ATC Tutorial ]]&lt;br /&gt;
* [[ Instrument Landing System Tutorial ]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Using additional FlightGear Tools&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ FGCOM ]] realtime voice comms &lt;br /&gt;
* [http://wiki.flightgear.org/flightgear_wiki/index.php?title=Atlas Atlas - How to set it up]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;Flying Resources&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[ Tutorial Resources ]]&lt;br /&gt;
* [[ Definitions Acronyms ]]&lt;br /&gt;
* [[ Getting IFR Charts ]]&lt;br /&gt;
* [[ Understanding Altitude ]]&lt;br /&gt;
* [[ Understanding Navigation ]]&lt;br /&gt;
* [[ Understanding Propeller Torque and P-Factor ]]&lt;br /&gt;
* [[ Understanding Aerodynamics ]]&lt;br /&gt;
* [[ Communications ]]&lt;br /&gt;
* [[ Weather ]]&lt;br /&gt;
* [[ Avionics and Instruments ]] &lt;br /&gt;
* [http://www.wingfiles.com/ Everything you need ]&lt;br /&gt;
* [http://www.faa.gov/library/manuals/ FAA Handbooks &amp;amp; Manuals]&lt;br /&gt;
* [http://www.worldaerodata.com/ World Aeronautical Database]&lt;br /&gt;
* [http://freechecklists.net/ Checklists]&lt;br /&gt;
* [[Resources for Pilot certification in the US]]&lt;br /&gt;
|-&lt;br /&gt;
! &amp;lt;h2 style=&amp;quot;margin:0; background:#0f7a71; font-size:120%; font-weight:bold; border:1px solid #d9e2e2; text-align:left; color:white; padding:0.2em 0.4em;&amp;quot;&amp;gt;FlightGear Promotion&amp;lt;/h2&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
|style=&amp;quot;color:#000;&amp;quot;| &lt;br /&gt;
* [[FlightGear Reviews]]&lt;br /&gt;
* [[FlightGear Videos]]&lt;br /&gt;
* [[Logos | FlightGear Logos]]&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
__NOTOC__&lt;br /&gt;
__NOEDITSECTION__&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=FlightGear_logos&amp;diff=6159</id>
		<title>FlightGear logos</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=FlightGear_logos&amp;diff=6159"/>
		<updated>2008-07-10T16:33:58Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: add logo repository&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Feel free to add your FlightGear logo here :&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== A-10 Logo ==&lt;br /&gt;
&lt;br /&gt;
[[Image:Wiki_logo.png]]&lt;br /&gt;
&lt;br /&gt;
* Author: Wes Summers&lt;br /&gt;
* License: http://creativecommons.org/licenses/by-sa/3.0/&lt;br /&gt;
* Source: [[Media:A-10_logo.pdf| Illustrator PDF]]&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:A-10_logo.pdf&amp;diff=6158</id>
		<title>File:A-10 logo.pdf</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:A-10_logo.pdf&amp;diff=6158"/>
		<updated>2008-07-10T16:25:42Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Vector file for logo
Author: Wes Summers
License: http://creativecommons.org/licenses/by-sa/3.0/&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Vector file for logo&lt;br /&gt;
Author: Wes Summers&lt;br /&gt;
License: http://creativecommons.org/licenses/by-sa/3.0/&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Wiki_logo.png&amp;diff=6157</id>
		<title>File:Wiki logo.png</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=File:Wiki_logo.png&amp;diff=6157"/>
		<updated>2008-07-10T16:24:20Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Current wiki logo
Author: Wes Summers
License: http://creativecommons.org/licenses/by-sa/3.0/&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Current wiki logo&lt;br /&gt;
Author: Wes Summers&lt;br /&gt;
License: http://creativecommons.org/licenses/by-sa/3.0/&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=6007</id>
		<title>Talk:Main Page/Archive/2006-2011</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=6007"/>
		<updated>2008-06-10T15:26:23Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: cleanup and update&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== Making the manual accessible via wiki software ==&lt;br /&gt;
On the other hand, I would recommend to also look into making &amp;quot;The Manual&amp;quot; editable via some sort of web based frontend, this would also ensure that people are able to easily contribute modifications to the manual, which is really the ultimate source for flightgear users. &lt;br /&gt;
A possible approach might be to import the underlying LaTex sources in docbook format into some sort of docbook based wiki (i.e. http://sourceforge.net/projects/doc-book/).&lt;br /&gt;
&lt;br /&gt;
As the manual is maintained in LaTex, is would be very hard to translate the wiki notes to include them in the manual. I suspect that this will be a &amp;quot;Won't Fix&amp;quot; as it is easier to copy and paste the text from the wiki and go from there. I am open to ideas though. [[User:Gorilla|Gorilla]] 06:33, 2 March 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
== Using a dedicated FAQ database ==&lt;br /&gt;
Also, I feel there are some sections covered in the wiki that aren't really optimally handled by a wiki: most notably the &amp;quot;FAQ&amp;quot; section should preferably be implemented via some sort of dynamic FAQ system (i.e. http://www.phpmyfaq.de), likewise the sections titled &amp;quot;Bugs&amp;quot;, &amp;quot;TODO&amp;quot;, &amp;quot;Feature Requests&amp;quot;, &amp;quot;ideas&amp;quot; etc. could probably all be handled far more effectively by using a real bug tracker such as bugzilla (http://www.bugzilla.org/), phpbugtracker (http://phpbt.sourceforge.net/) or mantis (http://www.mantisbt.org).&lt;br /&gt;
&lt;br /&gt;
== Using a dedicated bug tracker ==&lt;br /&gt;
&lt;br /&gt;
A couple of days ago I started setting up a local test bugZilla installation, while I am currently unable to provide reliable hosting, I would really not mind installing it on whatever webspace is available, likewise I can provide the preconfigured database dump if someone else wants to use the preconfigured Flightgear specific categories.--[[User:FlightZilla|FlightZilla]] 17:59, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
* how to define and limit editing rights for certain users?&lt;br /&gt;
&lt;br /&gt;
It's better to have one consolidated source of information for both bugs and descriptions. For now, user has to search through mailing lists, forums, user manuals (even not a single user manual, but several) and this wiki. It's absolutely not convinient for both users (they spend lot's of time searching required information) and developers (they spend lot's of time updating and syncronizing certain information in various sources).&lt;br /&gt;
&lt;br /&gt;
This wiki is suitable for bug tracking too. Users can provide feedback in a convinient form. They just open the corresponding page and add their bug to the list. Developers can respond to the posted bugs right away. Mailing lists are a lot less user-friendly and effective and a lot less popular among users (not developers) in this regard, this is the reason why some bugs may stay unreported and why many users forget about FlightGear as soon as they run into a problem.&lt;br /&gt;
&lt;br /&gt;
Unfortunately, it seems to me, this wiki is not popular among developers and users. -- [[User:Alfozavr|Alfozavr]] 06:59, 17 June 2007 (EDT)&lt;br /&gt;
&lt;br /&gt;
== Backups ==&lt;br /&gt;
Is the database regularly backed up? What about hosting the wiki directly at flightgear.org?&lt;br /&gt;
--[[User:MILSTD|MILSTD]] 15:25, 4 February 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
Yes, there are daily backups of the [http://hellosimon.org/backups code] and of the [http://hellosimon.org/backups/mysql database].  We also have off-site backups.  [[User:Hellosimon|Hellosimon]] 17:04, 4 February 2008 (EST)&lt;br /&gt;
----&lt;br /&gt;
&lt;br /&gt;
== Updates ==&lt;br /&gt;
&lt;br /&gt;
I've updated MediaWiki to 1.11.1 so if you notice any regressions let me know. [[User:Hellosimon|Hellosimon]] 15:03, 2 March 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
The wiki has moved to a new server which should relieve the performance problems.  [[User:Hellosimon|Hellosimon]] 11:26, 10 June 2008 (EDT)&lt;br /&gt;
&lt;br /&gt;
=== Regressions ===&lt;br /&gt;
* code passages (i.e. XML) are not highlighted anymore&lt;br /&gt;
&lt;br /&gt;
=== Proposed Additions ===&lt;br /&gt;
* what about some sort of true syntax-highlighting module, that would properly highlight XML &amp;amp; C++ ?&lt;br /&gt;
*  PDF Export - [http://sourceforge.net/projects/wikipdf/ Wikimedia plugin to export to PDF]&lt;br /&gt;
&lt;br /&gt;
Regarding the manual: isn't there a possibility to export wikimedia pages to PDF format? That way, we could maintain the whole manual via this wiki. Any thoughts?--[[User:FlightZilla|FlightZilla]] 18:10, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
If you check out the following links, you'll see that there are extensions available that would make it possible to easily provide PDF exports for all contents stored here, that way it would also become feasible to consider migrating the entire manual over to this wiki, so that it would also become more maintainble in the end:&lt;br /&gt;
http://meta.wikimedia.org/wiki/WikiPDF&lt;br /&gt;
http://meta.wikimedia.org/wiki/PDF_Export&lt;br /&gt;
--[[User:FlightZilla|FlightZilla]] 17:21, 19 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
Hello, guys. If I get it right, you're discussing various documentation types here.&lt;br /&gt;
&lt;br /&gt;
I think, this wiki is a lot more convenient than any other form of keeping documentation and at the same time communicating. It can be edited fast and easily and maintained up-to-date. However, the following questions need be solved:&lt;br /&gt;
* how to convert it to an offline version (maybe .pdf) so that it could be bundled with the FlightGear base package?&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=5222</id>
		<title>Talk:Main Page/Archive/2006-2011</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=5222"/>
		<updated>2008-03-02T20:03:05Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: mediawiki update&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Initial ramblings=&lt;br /&gt;
Sorry, I don't want to junk up the main page with someone's opinion on &amp;quot;the manual&amp;quot; and the wiki documentation.  [[User:Hellosimon|Hellosimon]] 10:41, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I too think that the Main Page shouldn't get too verbose.  I don't understand the need for that little comment in the User Documentation section, but if someone insists on having it placed on the wiki, then a compromise should be reached somehow.  I suggest moving it to some other articles. --[[User:64.229.232.249|64.229.232.249]] 16:14, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I agree: Simon, while you have definitely done some nice job here, you need to realize that you can achieve much more by collaborating constructively with other contributors rather than by simply opposing contributions of people who have in fact contributed significant amounts of work to the project for quite some time. &lt;br /&gt;
I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki. &lt;br /&gt;
There's simply a very clear relationship between &amp;quot;The Manual&amp;quot; and &amp;quot;the wiki&amp;quot;, if you fail to recognize this, your contribution (that is, this wiki) -even though very much needed and extremely worthwhile- is condemned to fail eventually. &lt;br /&gt;
&lt;br /&gt;
== Making the manual accessible via wiki software ==&lt;br /&gt;
On the other hand, I would recommend to also look into making &amp;quot;The Manual&amp;quot; editable via some sort of web based frontend, this would also ensure that people are able to easily contribute modifications to the manual, which is really the ultimate source for flightgear users. &lt;br /&gt;
A possible approach might be to import the underlying LaTex sources in docbook format into some sort of docbook based wiki (i.e. http://sourceforge.net/projects/doc-book/).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
As the manual is maintained in LaTex, is would be very hard to translate the wiki notes to include them in the manual. I suspect that this will be a &amp;quot;Won't Fix&amp;quot; as it is easier to copy and paste the text from the wiki and go from there. I am open to ideas though. [[User:Gorilla|Gorilla]] 06:33, 2 March 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
== Using a dedicated FAQ database ==&lt;br /&gt;
Also, I feel there are some sections covered in the wiki that aren't really optimally handled by a wiki: most notably the &amp;quot;FAQ&amp;quot; section should preferably be implemented via some sort of dynamic FAQ system (i.e. http://www.phpmyfaq.de), likewise the sections titled &amp;quot;Bugs&amp;quot;, &amp;quot;TODO&amp;quot;, &amp;quot;Feature Requests&amp;quot;, &amp;quot;ideas&amp;quot; etc. could probably all be handled far more effectively by using a real bug tracker such as bugzilla (http://www.bugzilla.org/), phpbugtracker (http://phpbt.sourceforge.net/) or mantis (http://www.mantisbt.org).&lt;br /&gt;
&lt;br /&gt;
Concerning database backups: you should preferably set up a cron job to upload a  compresed SQL dump to the flightgear FTP server on a regular (daily?) basis, I am sure you'll be granted write access to a corresponding directory, this would ensure that everything will in fact be backed up regularly and possibly even mirrored.&lt;br /&gt;
&lt;br /&gt;
[&amp;quot;I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki.&amp;quot;]&lt;br /&gt;
This assumption is correct. The manual is the center piece of the FlightGear user documentation, so does anyone have a suggestion (one that makes sense) on how to deal with my comments aside from &amp;quot;removing it&amp;quot; or &amp;quot;moving it into negligence/insignificance&amp;quot; ?&lt;br /&gt;
Martin.&lt;br /&gt;
== Using a dedicated bug tracker ==&lt;br /&gt;
Martin's text has been placed (not by me) in the paragraphs at the top.  I rather like this compromise and hope it works for everyone.  I agree a bugtracker would be ideal - didn't someone start one?  Also, if anyone wants to grant ftp access to a server, I'll gladly cron a script to upload the backup tarball.  I have it backed up to multiple locations in the meantime. &lt;br /&gt;
- [[User:Hellosimon|Hellosimon]] 11:36, 11 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
A couple of days ago I started setting up a local test bugZilla installation, while I am currently unable to provide reliable hosting, I would really not mind installing it on whatever webspace is available, likewise I can provide the preconfigured database dump if someone else wants to use the preconfigured Flightgear specific categories.--[[User:FlightZilla|FlightZilla]] 17:59, 17 June 2006 (EDT)&lt;br /&gt;
= PDF Export Facilities =&lt;br /&gt;
* [http://sourceforge.net/projects/wikipdf/ Wikimedia plugin to export to PDF]&lt;br /&gt;
&lt;br /&gt;
Regarding the manual: isn't there a possibility to export wikimedia pages to PDF format? That way, we could maintain the whole manual via this wiki. Any thoughts?--[[User:FlightZilla|FlightZilla]] 18:10, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
If you check out the following links, you'll see that there are extensions available that would make it possible to easily provide PDF exports for all contents stored here, that way it would also become feasible to consider migrating the entire manual over to this wiki, so that it would also become more maintainble in the end:&lt;br /&gt;
http://meta.wikimedia.org/wiki/WikiPDF&lt;br /&gt;
http://meta.wikimedia.org/wiki/PDF_Export&lt;br /&gt;
--[[User:FlightZilla|FlightZilla]] 17:21, 19 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
Hello, guys. If I get it right, you're discussing various documentation types here.&lt;br /&gt;
&lt;br /&gt;
I think, this wiki is a lot more convenient than any other form of keeping documentation and at the same time communicating. It can be edited fast and easily and maintained up-to-date. However, the following questions need be solved:&lt;br /&gt;
* how to convert it to an offline version (maybe .pdf) so that it could be bundled with the FlightGear base package?&lt;br /&gt;
&lt;br /&gt;
= Limiting access rights =&lt;br /&gt;
* how to define and limit editing rights for certain users?&lt;br /&gt;
&lt;br /&gt;
It's better to have one consolidated source of information for both bugs and descriptions. For now, user has to search through mailing lists, forums, user manuals (even not a single user manual, but several) and this wiki. It's absolutely not convinient for both users (they spend lot's of time searching required information) and developers (they spend lot's of time updating and syncronizing certain information in various sources).&lt;br /&gt;
&lt;br /&gt;
This wiki is suitable for bug tracking too. Users can provide feedback in a convinient form. They just open the corresponding page and add their bug to the list. Developers can respond to the posted bugs right away. Mailing lists are a lot less user-friendly and effective and a lot less popular among users (not developers) in this regard, this is the reason why some bugs may stay unreported and why many users forget about FlightGear as soon as they run into a problem.&lt;br /&gt;
&lt;br /&gt;
Unfortunately, it seems to me, this wiki is not popular among developers and users. -- [[User:Alfozavr|Alfozavr]] 06:59, 17 June 2007 (EDT)&lt;br /&gt;
&lt;br /&gt;
= 02/2008: Wiki issues (database, login &amp;amp; performance problems) =&lt;br /&gt;
Recently, the wiki seems to be suffering rather seriously from database connection issues, also often login information doesn't seem to be retained properly and performance is often seriously affected, as well.&lt;br /&gt;
&lt;br /&gt;
Error messages include:&lt;br /&gt;
  Sorry! This site is experiencing technical difficulties.&lt;br /&gt;
  &lt;br /&gt;
  Try waiting a few minutes and reloading.&lt;br /&gt;
  &lt;br /&gt;
  (Can't contact the database server: User hellosimonor1 already has more than 'max_user_connections' active connections (mysql01.powweb.com))&lt;br /&gt;
&lt;br /&gt;
I too am frustrated and fed up with the performance issues I've had with this host and I'm currently researching alternative hosting. [[User:Hellosimon|Hellosimon]] 15:06, 4 February 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
Is the database regularly backed up? What about hosting the wiki directly at flightgear.org?&lt;br /&gt;
--[[User:MILSTD|MILSTD]] 15:25, 4 February 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
Yes, there are daily backups of the [http://hellosimon.org/backups code] and of the [http://hellosimon.org/backups/mysql database].  We also have off-site backups.  I'm trying to reduce the burden on Curt rather than add to it, but he owns the domain so it's his call.  [[User:Hellosimon|Hellosimon]] 17:04, 4 February 2008 (EST)&lt;br /&gt;
----&lt;br /&gt;
There's a problem with the images to. I get this message at the place of a thumbnail when I upload new images:&lt;br /&gt;
&lt;br /&gt;
 Image:Error creating thumbnail: sh: line 1: /usr/bin/convert: No such file or directory &lt;br /&gt;
It looks like something with the database to...--[[User:Gijs|Gijs]] 15:01, 5 February 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
The link to convert changed to /usr/local/bin.  This should be fixed now. [[User:Hellosimon|Hellosimon]] 15:00, 2 March 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
= 03/02/2008: Wiki Update =&lt;br /&gt;
&lt;br /&gt;
I've updated MediaWiki to 1.11.1 so if you notice any regressions let me know. [[User:Hellosimon|Hellosimon]] 15:03, 2 March 2008 (EST)&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=5221</id>
		<title>Talk:Main Page/Archive/2006-2011</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=5221"/>
		<updated>2008-03-02T20:00:55Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: /* 02/2008: Wiki issues (database, login &amp;amp; performance problems) */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Initial ramblings=&lt;br /&gt;
Sorry, I don't want to junk up the main page with someone's opinion on &amp;quot;the manual&amp;quot; and the wiki documentation.  [[User:Hellosimon|Hellosimon]] 10:41, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I too think that the Main Page shouldn't get too verbose.  I don't understand the need for that little comment in the User Documentation section, but if someone insists on having it placed on the wiki, then a compromise should be reached somehow.  I suggest moving it to some other articles. --[[User:64.229.232.249|64.229.232.249]] 16:14, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I agree: Simon, while you have definitely done some nice job here, you need to realize that you can achieve much more by collaborating constructively with other contributors rather than by simply opposing contributions of people who have in fact contributed significant amounts of work to the project for quite some time. &lt;br /&gt;
I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki. &lt;br /&gt;
There's simply a very clear relationship between &amp;quot;The Manual&amp;quot; and &amp;quot;the wiki&amp;quot;, if you fail to recognize this, your contribution (that is, this wiki) -even though very much needed and extremely worthwhile- is condemned to fail eventually. &lt;br /&gt;
&lt;br /&gt;
== Making the manual accessible via wiki software ==&lt;br /&gt;
On the other hand, I would recommend to also look into making &amp;quot;The Manual&amp;quot; editable via some sort of web based frontend, this would also ensure that people are able to easily contribute modifications to the manual, which is really the ultimate source for flightgear users. &lt;br /&gt;
A possible approach might be to import the underlying LaTex sources in docbook format into some sort of docbook based wiki (i.e. http://sourceforge.net/projects/doc-book/).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
As the manual is maintained in LaTex, is would be very hard to translate the wiki notes to include them in the manual. I suspect that this will be a &amp;quot;Won't Fix&amp;quot; as it is easier to copy and paste the text from the wiki and go from there. I am open to ideas though. [[User:Gorilla|Gorilla]] 06:33, 2 March 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
== Using a dedicated FAQ database ==&lt;br /&gt;
Also, I feel there are some sections covered in the wiki that aren't really optimally handled by a wiki: most notably the &amp;quot;FAQ&amp;quot; section should preferably be implemented via some sort of dynamic FAQ system (i.e. http://www.phpmyfaq.de), likewise the sections titled &amp;quot;Bugs&amp;quot;, &amp;quot;TODO&amp;quot;, &amp;quot;Feature Requests&amp;quot;, &amp;quot;ideas&amp;quot; etc. could probably all be handled far more effectively by using a real bug tracker such as bugzilla (http://www.bugzilla.org/), phpbugtracker (http://phpbt.sourceforge.net/) or mantis (http://www.mantisbt.org).&lt;br /&gt;
&lt;br /&gt;
Concerning database backups: you should preferably set up a cron job to upload a  compresed SQL dump to the flightgear FTP server on a regular (daily?) basis, I am sure you'll be granted write access to a corresponding directory, this would ensure that everything will in fact be backed up regularly and possibly even mirrored.&lt;br /&gt;
&lt;br /&gt;
[&amp;quot;I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki.&amp;quot;]&lt;br /&gt;
This assumption is correct. The manual is the center piece of the FlightGear user documentation, so does anyone have a suggestion (one that makes sense) on how to deal with my comments aside from &amp;quot;removing it&amp;quot; or &amp;quot;moving it into negligence/insignificance&amp;quot; ?&lt;br /&gt;
Martin.&lt;br /&gt;
== Using a dedicated bug tracker ==&lt;br /&gt;
Martin's text has been placed (not by me) in the paragraphs at the top.  I rather like this compromise and hope it works for everyone.  I agree a bugtracker would be ideal - didn't someone start one?  Also, if anyone wants to grant ftp access to a server, I'll gladly cron a script to upload the backup tarball.  I have it backed up to multiple locations in the meantime. &lt;br /&gt;
- [[User:Hellosimon|Hellosimon]] 11:36, 11 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
A couple of days ago I started setting up a local test bugZilla installation, while I am currently unable to provide reliable hosting, I would really not mind installing it on whatever webspace is available, likewise I can provide the preconfigured database dump if someone else wants to use the preconfigured Flightgear specific categories.--[[User:FlightZilla|FlightZilla]] 17:59, 17 June 2006 (EDT)&lt;br /&gt;
= PDF Export Facilities =&lt;br /&gt;
* [http://sourceforge.net/projects/wikipdf/ Wikimedia plugin to export to PDF]&lt;br /&gt;
&lt;br /&gt;
Regarding the manual: isn't there a possibility to export wikimedia pages to PDF format? That way, we could maintain the whole manual via this wiki. Any thoughts?--[[User:FlightZilla|FlightZilla]] 18:10, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
If you check out the following links, you'll see that there are extensions available that would make it possible to easily provide PDF exports for all contents stored here, that way it would also become feasible to consider migrating the entire manual over to this wiki, so that it would also become more maintainble in the end:&lt;br /&gt;
http://meta.wikimedia.org/wiki/WikiPDF&lt;br /&gt;
http://meta.wikimedia.org/wiki/PDF_Export&lt;br /&gt;
--[[User:FlightZilla|FlightZilla]] 17:21, 19 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
Hello, guys. If I get it right, you're discussing various documentation types here.&lt;br /&gt;
&lt;br /&gt;
I think, this wiki is a lot more convenient than any other form of keeping documentation and at the same time communicating. It can be edited fast and easily and maintained up-to-date. However, the following questions need be solved:&lt;br /&gt;
* how to convert it to an offline version (maybe .pdf) so that it could be bundled with the FlightGear base package?&lt;br /&gt;
&lt;br /&gt;
= Limiting access rights =&lt;br /&gt;
* how to define and limit editing rights for certain users?&lt;br /&gt;
&lt;br /&gt;
It's better to have one consolidated source of information for both bugs and descriptions. For now, user has to search through mailing lists, forums, user manuals (even not a single user manual, but several) and this wiki. It's absolutely not convinient for both users (they spend lot's of time searching required information) and developers (they spend lot's of time updating and syncronizing certain information in various sources).&lt;br /&gt;
&lt;br /&gt;
This wiki is suitable for bug tracking too. Users can provide feedback in a convinient form. They just open the corresponding page and add their bug to the list. Developers can respond to the posted bugs right away. Mailing lists are a lot less user-friendly and effective and a lot less popular among users (not developers) in this regard, this is the reason why some bugs may stay unreported and why many users forget about FlightGear as soon as they run into a problem.&lt;br /&gt;
&lt;br /&gt;
Unfortunately, it seems to me, this wiki is not popular among developers and users. -- [[User:Alfozavr|Alfozavr]] 06:59, 17 June 2007 (EDT)&lt;br /&gt;
&lt;br /&gt;
= 02/2008: Wiki issues (database, login &amp;amp; performance problems) =&lt;br /&gt;
Recently, the wiki seems to be suffering rather seriously from database connection issues, also often login information doesn't seem to be retained properly and performance is often seriously affected, as well.&lt;br /&gt;
&lt;br /&gt;
Error messages include:&lt;br /&gt;
  Sorry! This site is experiencing technical difficulties.&lt;br /&gt;
  &lt;br /&gt;
  Try waiting a few minutes and reloading.&lt;br /&gt;
  &lt;br /&gt;
  (Can't contact the database server: User hellosimonor1 already has more than 'max_user_connections' active connections (mysql01.powweb.com))&lt;br /&gt;
&lt;br /&gt;
I too am frustrated and fed up with the performance issues I've had with this host and I'm currently researching alternative hosting. [[User:Hellosimon|Hellosimon]] 15:06, 4 February 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
Is the database regularly backed up? What about hosting the wiki directly at flightgear.org?&lt;br /&gt;
--[[User:MILSTD|MILSTD]] 15:25, 4 February 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
Yes, there are daily backups of the [http://hellosimon.org/backups code] and of the [http://hellosimon.org/backups/mysql database].  We also have off-site backups.  I'm trying to reduce the burden on Curt rather than add to it, but he owns the domain so it's his call.  [[User:Hellosimon|Hellosimon]] 17:04, 4 February 2008 (EST)&lt;br /&gt;
----&lt;br /&gt;
There's a problem with the images to. I get this message at the place of a thumbnail when I upload new images:&lt;br /&gt;
&lt;br /&gt;
 Image:Error creating thumbnail: sh: line 1: /usr/bin/convert: No such file or directory &lt;br /&gt;
It looks like something with the database to...--[[User:Gijs|Gijs]] 15:01, 5 February 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
The link to convert changed to /usr/local/bin.  This should be fixed now. [[User:Hellosimon|Hellosimon]] 15:00, 2 March 2008 (EST)&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=5077</id>
		<title>Talk:Main Page/Archive/2006-2011</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=5077"/>
		<updated>2008-02-04T22:05:05Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Initial ramblings=&lt;br /&gt;
Sorry, I don't want to junk up the main page with someone's opinion on &amp;quot;the manual&amp;quot; and the wiki documentation.  [[User:Hellosimon|Hellosimon]] 10:41, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I too think that the Main Page shouldn't get too verbose.  I don't understand the need for that little comment in the User Documentation section, but if someone insists on having it placed on the wiki, then a compromise should be reached somehow.  I suggest moving it to some other articles. --[[User:64.229.232.249|64.229.232.249]] 16:14, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I agree: Simon, while you have definitely done some nice job here, you need to realize that you can achieve much more by collaborating constructively with other contributors rather than by simply opposing contributions of people who have in fact contributed significant amounts of work to the project for quite some time. &lt;br /&gt;
I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki. &lt;br /&gt;
There's simply a very clear relationship between &amp;quot;The Manual&amp;quot; and &amp;quot;the wiki&amp;quot;, if you fail to recognize this, your contribution (that is, this wiki) -even though very much needed and extremely worthwhile- is condemned to fail eventually. &lt;br /&gt;
&lt;br /&gt;
== Making the manual accessible via wiki software ==&lt;br /&gt;
On the other hand, I would recommend to also look into making &amp;quot;The Manual&amp;quot; editable via some sort of web based frontend, this would also ensure that people are able to easily contribute modifications to the manual, which is really the ultimate source for flightgear users. &lt;br /&gt;
A possible approach might be to import the underlying LaTex sources in docbook format into some sort of docbook based wiki (i.e. http://sourceforge.net/projects/doc-book/).&lt;br /&gt;
&lt;br /&gt;
== Using a dedicated FAQ database ==&lt;br /&gt;
Also, I feel there are some sections covered in the wiki that aren't really optimally handled by a wiki: most notably the &amp;quot;FAQ&amp;quot; section should preferably be implemented via some sort of dynamic FAQ system (i.e. http://www.phpmyfaq.de), likewise the sections titled &amp;quot;Bugs&amp;quot;, &amp;quot;TODO&amp;quot;, &amp;quot;Feature Requests&amp;quot;, &amp;quot;ideas&amp;quot; etc. could probably all be handled far more effectively by using a real bug tracker such as bugzilla (http://www.bugzilla.org/), phpbugtracker (http://phpbt.sourceforge.net/) or mantis (http://www.mantisbt.org).&lt;br /&gt;
&lt;br /&gt;
Concerning database backups: you should preferably set up a cron job to upload a  compresed SQL dump to the flightgear FTP server on a regular (daily?) basis, I am sure you'll be granted write access to a corresponding directory, this would ensure that everything will in fact be backed up regularly and possibly even mirrored.&lt;br /&gt;
&lt;br /&gt;
[&amp;quot;I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki.&amp;quot;]&lt;br /&gt;
This assumption is correct. The manual is the center piece of the FlightGear user documentation, so does anyone have a suggestion (one that makes sense) on how to deal with my comments aside from &amp;quot;removing it&amp;quot; or &amp;quot;moving it into negligence/insignificance&amp;quot; ?&lt;br /&gt;
Martin.&lt;br /&gt;
== Using a dedicated bug tracker ==&lt;br /&gt;
Martin's text has been placed (not by me) in the paragraphs at the top.  I rather like this compromise and hope it works for everyone.  I agree a bugtracker would be ideal - didn't someone start one?  Also, if anyone wants to grant ftp access to a server, I'll gladly cron a script to upload the backup tarball.  I have it backed up to multiple locations in the meantime. &lt;br /&gt;
- [[User:Hellosimon|Hellosimon]] 11:36, 11 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
A couple of days ago I started setting up a local test bugZilla installation, while I am currently unable to provide reliable hosting, I would really not mind installing it on whatever webspace is available, likewise I can provide the preconfigured database dump if someone else wants to use the preconfigured Flightgear specific categories.--[[User:FlightZilla|FlightZilla]] 17:59, 17 June 2006 (EDT)&lt;br /&gt;
= PDF Export Facilities =&lt;br /&gt;
* [http://sourceforge.net/projects/wikipdf/ Wikimedia plugin to export to PDF]&lt;br /&gt;
&lt;br /&gt;
Regarding the manual: isn't there a possibility to export wikimedia pages to PDF format? That way, we could maintain the whole manual via this wiki. Any thoughts?--[[User:FlightZilla|FlightZilla]] 18:10, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
If you check out the following links, you'll see that there are extensions available that would make it possible to easily provide PDF exports for all contents stored here, that way it would also become feasible to consider migrating the entire manual over to this wiki, so that it would also become more maintainble in the end:&lt;br /&gt;
http://meta.wikimedia.org/wiki/WikiPDF&lt;br /&gt;
http://meta.wikimedia.org/wiki/PDF_Export&lt;br /&gt;
--[[User:FlightZilla|FlightZilla]] 17:21, 19 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
Hello, guys. If I get it right, you're discussing various documentation types here.&lt;br /&gt;
&lt;br /&gt;
I think, this wiki is a lot more convenient than any other form of keeping documentation and at the same time communicating. It can be edited fast and easily and maintained up-to-date. However, the following questions need be solved:&lt;br /&gt;
* how to convert it to an offline version (maybe .pdf) so that it could be bundled with the FlightGear base package?&lt;br /&gt;
&lt;br /&gt;
= Limiting access rights =&lt;br /&gt;
* how to define and limit editing rights for certain users?&lt;br /&gt;
&lt;br /&gt;
It's better to have one consolidated source of information for both bugs and descriptions. For now, user has to search through mailing lists, forums, user manuals (even not a single user manual, but several) and this wiki. It's absolutely not convinient for both users (they spend lot's of time searching required information) and developers (they spend lot's of time updating and syncronizing certain information in various sources).&lt;br /&gt;
&lt;br /&gt;
This wiki is suitable for bug tracking too. Users can provide feedback in a convinient form. They just open the corresponding page and add their bug to the list. Developers can respond to the posted bugs right away. Mailing lists are a lot less user-friendly and effective and a lot less popular among users (not developers) in this regard, this is the reason why some bugs may stay unreported and why many users forget about FlightGear as soon as they run into a problem.&lt;br /&gt;
&lt;br /&gt;
Unfortunately, it seems to me, this wiki is not popular among developers and users. -- [[User:Alfozavr|Alfozavr]] 06:59, 17 June 2007 (EDT)&lt;br /&gt;
&lt;br /&gt;
= 02/2008: Wiki issues (database, login &amp;amp; performance problems) =&lt;br /&gt;
Recently, the wiki seems to be suffering rather seriously from database connection issues, also often login information doesn't seem to be retained properly and performance is often seriously affected, as well.&lt;br /&gt;
&lt;br /&gt;
Error messages include:&lt;br /&gt;
  Sorry! This site is experiencing technical difficulties.&lt;br /&gt;
  &lt;br /&gt;
  Try waiting a few minutes and reloading.&lt;br /&gt;
  &lt;br /&gt;
  (Can't contact the database server: User hellosimonor1 already has more than 'max_user_connections' active connections (mysql01.powweb.com))&lt;br /&gt;
&lt;br /&gt;
I too am frustrated and fed up with the performance issues I've had with this host and I'm currently researching alternative hosting. [[User:Hellosimon|Hellosimon]] 15:06, 4 February 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
Is the database regularly backed up? What about hosting the wiki directly at flightgear.org?&lt;br /&gt;
--[[User:MILSTD|MILSTD]] 15:25, 4 February 2008 (EST)&lt;br /&gt;
&lt;br /&gt;
Yes, there are daily backups of the [http://hellosimon.org/backups code] and of the [http://hellosimon.org/backups/mysql database].  We also have off-site backups.  I'm trying to reduce the burden on Curt rather than add to it, but he owns the domain so it's his call.  [[User:Hellosimon|Hellosimon]] 17:04, 4 February 2008 (EST)&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=5074</id>
		<title>Talk:Main Page/Archive/2006-2011</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=5074"/>
		<updated>2008-02-04T20:06:51Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Initial ramblings=&lt;br /&gt;
Sorry, I don't want to junk up the main page with someone's opinion on &amp;quot;the manual&amp;quot; and the wiki documentation.  [[User:Hellosimon|Hellosimon]] 10:41, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I too think that the Main Page shouldn't get too verbose.  I don't understand the need for that little comment in the User Documentation section, but if someone insists on having it placed on the wiki, then a compromise should be reached somehow.  I suggest moving it to some other articles. --[[User:64.229.232.249|64.229.232.249]] 16:14, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I agree: Simon, while you have definitely done some nice job here, you need to realize that you can achieve much more by collaborating constructively with other contributors rather than by simply opposing contributions of people who have in fact contributed significant amounts of work to the project for quite some time. &lt;br /&gt;
I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki. &lt;br /&gt;
There's simply a very clear relationship between &amp;quot;The Manual&amp;quot; and &amp;quot;the wiki&amp;quot;, if you fail to recognize this, your contribution (that is, this wiki) -even though very much needed and extremely worthwhile- is condemned to fail eventually. &lt;br /&gt;
&lt;br /&gt;
== Making the manual accessible via wiki software ==&lt;br /&gt;
On the other hand, I would recommend to also look into making &amp;quot;The Manual&amp;quot; editable via some sort of web based frontend, this would also ensure that people are able to easily contribute modifications to the manual, which is really the ultimate source for flightgear users. &lt;br /&gt;
A possible approach might be to import the underlying LaTex sources in docbook format into some sort of docbook based wiki (i.e. http://sourceforge.net/projects/doc-book/).&lt;br /&gt;
&lt;br /&gt;
== Using a dedicated FAQ database ==&lt;br /&gt;
Also, I feel there are some sections covered in the wiki that aren't really optimally handled by a wiki: most notably the &amp;quot;FAQ&amp;quot; section should preferably be implemented via some sort of dynamic FAQ system (i.e. http://www.phpmyfaq.de), likewise the sections titled &amp;quot;Bugs&amp;quot;, &amp;quot;TODO&amp;quot;, &amp;quot;Feature Requests&amp;quot;, &amp;quot;ideas&amp;quot; etc. could probably all be handled far more effectively by using a real bug tracker such as bugzilla (http://www.bugzilla.org/), phpbugtracker (http://phpbt.sourceforge.net/) or mantis (http://www.mantisbt.org).&lt;br /&gt;
&lt;br /&gt;
Concerning database backups: you should preferably set up a cron job to upload a  compresed SQL dump to the flightgear FTP server on a regular (daily?) basis, I am sure you'll be granted write access to a corresponding directory, this would ensure that everything will in fact be backed up regularly and possibly even mirrored.&lt;br /&gt;
&lt;br /&gt;
[&amp;quot;I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki.&amp;quot;]&lt;br /&gt;
This assumption is correct. The manual is the center piece of the FlightGear user documentation, so does anyone have a suggestion (one that makes sense) on how to deal with my comments aside from &amp;quot;removing it&amp;quot; or &amp;quot;moving it into negligence/insignificance&amp;quot; ?&lt;br /&gt;
Martin.&lt;br /&gt;
== Using a dedicated bug tracker ==&lt;br /&gt;
Martin's text has been placed (not by me) in the paragraphs at the top.  I rather like this compromise and hope it works for everyone.  I agree a bugtracker would be ideal - didn't someone start one?  Also, if anyone wants to grant ftp access to a server, I'll gladly cron a script to upload the backup tarball.  I have it backed up to multiple locations in the meantime. &lt;br /&gt;
- [[User:Hellosimon|Hellosimon]] 11:36, 11 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
A couple of days ago I started setting up a local test bugZilla installation, while I am currently unable to provide reliable hosting, I would really not mind installing it on whatever webspace is available, likewise I can provide the preconfigured database dump if someone else wants to use the preconfigured Flightgear specific categories.--[[User:FlightZilla|FlightZilla]] 17:59, 17 June 2006 (EDT)&lt;br /&gt;
= PDF Export Facilities =&lt;br /&gt;
* [http://sourceforge.net/projects/wikipdf/ Wikimedia plugin to export to PDF]&lt;br /&gt;
&lt;br /&gt;
Regarding the manual: isn't there a possibility to export wikimedia pages to PDF format? That way, we could maintain the whole manual via this wiki. Any thoughts?--[[User:FlightZilla|FlightZilla]] 18:10, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
If you check out the following links, you'll see that there are extensions available that would make it possible to easily provide PDF exports for all contents stored here, that way it would also become feasible to consider migrating the entire manual over to this wiki, so that it would also become more maintainble in the end:&lt;br /&gt;
http://meta.wikimedia.org/wiki/WikiPDF&lt;br /&gt;
http://meta.wikimedia.org/wiki/PDF_Export&lt;br /&gt;
--[[User:FlightZilla|FlightZilla]] 17:21, 19 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
Hello, guys. If I get it right, you're discussing various documentation types here.&lt;br /&gt;
&lt;br /&gt;
I think, this wiki is a lot more convenient than any other form of keeping documentation and at the same time communicating. It can be edited fast and easily and maintained up-to-date. However, the following questions need be solved:&lt;br /&gt;
* how to convert it to an offline version (maybe .pdf) so that it could be bundled with the FlightGear base package?&lt;br /&gt;
&lt;br /&gt;
= Limiting access rights =&lt;br /&gt;
* how to define and limit editing rights for certain users?&lt;br /&gt;
&lt;br /&gt;
It's better to have one consolidated source of information for both bugs and descriptions. For now, user has to search through mailing lists, forums, user manuals (even not a single user manual, but several) and this wiki. It's absolutely not convinient for both users (they spend lot's of time searching required information) and developers (they spend lot's of time updating and syncronizing certain information in various sources).&lt;br /&gt;
&lt;br /&gt;
This wiki is suitable for bug tracking too. Users can provide feedback in a convinient form. They just open the corresponding page and add their bug to the list. Developers can respond to the posted bugs right away. Mailing lists are a lot less user-friendly and effective and a lot less popular among users (not developers) in this regard, this is the reason why some bugs may stay unreported and why many users forget about FlightGear as soon as they run into a problem.&lt;br /&gt;
&lt;br /&gt;
Unfortunately, it seems to me, this wiki is not popular among developers and users. -- [[User:Alfozavr|Alfozavr]] 06:59, 17 June 2007 (EDT)&lt;br /&gt;
&lt;br /&gt;
= 02/2008: Wiki issues (database, login &amp;amp; performance problems) =&lt;br /&gt;
Recently, the wiki seems to be suffering rather seriously from database connection issues, also often login information doesn't seem to be retained properly and performance is often seriously affected, as well.&lt;br /&gt;
&lt;br /&gt;
Error messages include:&lt;br /&gt;
  Sorry! This site is experiencing technical difficulties.&lt;br /&gt;
  &lt;br /&gt;
  Try waiting a few minutes and reloading.&lt;br /&gt;
  &lt;br /&gt;
  (Can't contact the database server: User hellosimonor1 already has more than 'max_user_connections' active connections (mysql01.powweb.com))&lt;br /&gt;
&lt;br /&gt;
I too am frustrated and fed up with the performance issues I've had with this host and I'm currently researching alternative hosting. [[User:Hellosimon|Hellosimon]] 15:06, 4 February 2008 (EST)&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Main_Page&amp;diff=4732</id>
		<title>Main Page</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Main_Page&amp;diff=4732"/>
		<updated>2007-12-11T13:22:13Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: remove duplicate list as per http://sourceforge.net/mailarchive/message.php?msg_name=200712110829.11326.d.talsma%40xs4all.nl&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;__NOTOC__&lt;br /&gt;
__NOEDITSECTION__&lt;br /&gt;
'''FlightGear''' Flight Simulator project is an open-source, multi-platform, cooperative flight simulator development project. Source code for the entire project is available ([http://cvs.flightgear.org/cgi-bin/viewcvs/viewcvs.cgi/?cvsroot=FlightGear-0.9#dirlist CVS repository]) and licensed under the [http://www.gnu.org/copyleft/gpl.html GNU General Public License]. &lt;br /&gt;
&lt;br /&gt;
The goal of the '''FlightGear''' project is to create a sophisticated flight simulator framework for use in research or academic environments, for the development and pursuit of other interesting flight simulation ideas, and as an end-user application. We are developing a sophisticated, open simulation framework that can be expanded and improved upon by anyone interested in [[Volunteer|contributing]]. &lt;br /&gt;
&lt;br /&gt;
There are many exciting possibilities for an open, free flight sim. We hope that this project will be interesting and useful to many people in many areas.&lt;br /&gt;
&lt;br /&gt;
'''FlightGear''' comes with a set of illustrated documentation, notably&lt;br /&gt;
&amp;quot;The Manual&amp;quot;, which is available as&lt;br /&gt;
[ftp://ftp.de.flightgear.org/pub/fgfs/Docs/getstart.pdf PDF] and&lt;br /&gt;
[http://www.flightgear.org/Docs/getstart/getstart.html HTML]. If you&lt;br /&gt;
prefer to follow the 'bleeding edge' set of FlightGear instructions,&lt;br /&gt;
then the following articles are likely to make you happy. You will&lt;br /&gt;
notice that parts of this Wiki duplicate information that's already&lt;br /&gt;
present in &amp;quot;The Manual&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
{|&lt;br /&gt;
| valign=&amp;quot;top&amp;quot; |&lt;br /&gt;
== User Documentation ==&lt;br /&gt;
=== Getting Started ===&lt;br /&gt;
* [[ New to FlightGear ]]&lt;br /&gt;
* [[ Why FlightGear ]]&lt;br /&gt;
* [[ FlightGear Reviews]]&lt;br /&gt;
* [[ Features ]]&lt;br /&gt;
* [[ FAQ ]]&lt;br /&gt;
* [[ Hardware Recommendations ]]&lt;br /&gt;
* [[ Recommended Software ]]&lt;br /&gt;
* [[ Troubleshooting Problems ]]&lt;br /&gt;
* [[ Volunteer ]]&lt;br /&gt;
* [[ Real Life Experience ]]&lt;br /&gt;
=== Configuring Flightgear ===&lt;br /&gt;
* [[ Command Line Parameters ]]&lt;br /&gt;
* [[ Installing Scenery ]]&lt;br /&gt;
* [[ Improving Framerates ]]&lt;br /&gt;
* [[ Multiplayer Howto ]]&lt;br /&gt;
* [[ Linux software audio mixing with FlightGear ]]&lt;br /&gt;
* [http://www.inkdrop.net/dave/multimon.pdf Using multiple monitors with FlightGear]&lt;br /&gt;
=== Using Flightgear ===&lt;br /&gt;
* [[Aircraft]]&lt;br /&gt;
* [[Helicopter]]&lt;br /&gt;
* [[ Suggested Flights ]]&lt;br /&gt;
* [[ Starting in the Air ]]&lt;br /&gt;
* [[ Instant Replay ]]&lt;br /&gt;
* [[ Preset Properties ]]&lt;br /&gt;
* [[ Realism ]]&lt;br /&gt;
* [[ Flying the Helicopter ]]&lt;br /&gt;
* [[ Doing aerotow over the net ]]&lt;br /&gt;
=== Interactive Scenarios ===&lt;br /&gt;
* [[ Carrier Howto ]]&lt;br /&gt;
* [[ Air-Air Refueling Howto ]]&lt;br /&gt;
* [[ AI Systems ]]&lt;br /&gt;
* [[ Interactive Traffic ]]&lt;br /&gt;
* [[ Soaring ]]&lt;br /&gt;
* [[ FGCOM ]] realtime voice comms &lt;br /&gt;
=== Flying Resources ===&lt;br /&gt;
* [[ Tutorial Resources ]]&lt;br /&gt;
* [[ Definitions Acronyms ]]&lt;br /&gt;
* [[ Getting IFR Charts ]]&lt;br /&gt;
* [[ Understanding Altitude ]]&lt;br /&gt;
* [[ Understanding Navigation ]]&lt;br /&gt;
* [[ Understanding Propeller Torque and P-Factor ]]&lt;br /&gt;
* [[ Understanding Aerodynamics ]]&lt;br /&gt;
* [[ Communications ]]&lt;br /&gt;
* [[ Weather ]]&lt;br /&gt;
* [[ Avionics and Instruments ]] &lt;br /&gt;
* [http://www.wingfiles.com/ Everything you need ]&lt;br /&gt;
* [http://www.faa.gov/library/manuals/ FAA Handbooks &amp;amp; Manuals]&lt;br /&gt;
| width=&amp;quot;20px&amp;quot; |&lt;br /&gt;
| valign=&amp;quot;top&amp;quot; |&lt;br /&gt;
== Middleware/Base Package Development ==&lt;br /&gt;
&lt;br /&gt;
* [[:Category:Aircraft TODO]]&lt;br /&gt;
&lt;br /&gt;
=== Modeling ===&lt;br /&gt;
* [[ Modeling - Getting Started ]]&lt;br /&gt;
* [[ Modelling - FAQ ]]&lt;br /&gt;
* [[ Modelling - SketchUp]]&lt;br /&gt;
* [[ Model Import and Export ]]&lt;br /&gt;
* [[ Modeling Resources ]]&lt;br /&gt;
* [[ Autopilot Tuning Resources ]]&lt;br /&gt;
* [[ Aircraft Information Resources ]]&lt;br /&gt;
* [[ Blender Ground Signs Tutorial]]&lt;br /&gt;
* [[ Normals and Transparency Tutorial ]]&lt;br /&gt;
* [[ Creating instruments for FG ]]&lt;br /&gt;
* [[ Writing simple scripts in %22nasal%22 ]]&lt;br /&gt;
&lt;br /&gt;
=== Conventions &amp;amp; Guidelines ===&lt;br /&gt;
&lt;br /&gt;
=== Misc ===&lt;br /&gt;
* [[FGSD- How to make a airport]]&lt;br /&gt;
&lt;br /&gt;
== Developer Documentation ==&lt;br /&gt;
=== RFC Topics ===&lt;br /&gt;
* [[Next Generation Scenery ]] - revamping the FG scenery engine&lt;br /&gt;
* [[Keyboard function priority list]] - reorganizing FlightGear keybindings&lt;br /&gt;
* [[FlightGear Sessions]] - discussing possible steps to finally allow aircraft to be reliably switched at runtime&lt;br /&gt;
* [[Formalizing Aircraft Status]] - discussing suggestions about how to more properly describe aircraft development status&lt;br /&gt;
* [[Simplifying Aircraft Deployment]] - identifying potential steps to simplify deployment of FlightGear aircraft&lt;br /&gt;
&lt;br /&gt;
=== Current Efforts/Branches ===&lt;br /&gt;
TODO: use to document and keep track of official branches (i.e. plib/OSG) and local efforts/projects of individual contributors.&lt;br /&gt;
&lt;br /&gt;
=== Compiling  ===&lt;br /&gt;
* [[ Building Flightgear ]]&lt;br /&gt;
* [[ Building Flightgear - Windows]]&lt;br /&gt;
* [[ Building Terragear ]]&lt;br /&gt;
* [[ OpenSceneGraph ]]&lt;br /&gt;
* [[ Building FlightGear Launch Control ]]&lt;br /&gt;
&lt;br /&gt;
=== HowTos ===&lt;br /&gt;
* [[FlightGear-Points of Interest]]&lt;br /&gt;
* [[Adding features]]&lt;br /&gt;
&lt;br /&gt;
=== Contributing ===&lt;br /&gt;
* [[ Submitting Patches ]] &lt;br /&gt;
* [[ Code Cleanup ]] &lt;br /&gt;
* [[ Development Resources ]]&lt;br /&gt;
* [[ Extension Support ]]&lt;br /&gt;
* [[ Technical Reports ]]&lt;br /&gt;
&lt;br /&gt;
=== Code Internals ===&lt;br /&gt;
* [[ Property Tree ]]&lt;br /&gt;
* [[ Subsystems ]] &lt;br /&gt;
* [[ UML Diagrams ]]&lt;br /&gt;
* [[ Commands ]] &lt;br /&gt;
* [[ FDM API ]]&lt;br /&gt;
* [[ Nasal scripting language ]]&lt;br /&gt;
* [[ File Formats ]]&lt;br /&gt;
* [[ Initialization Sequence ]]&lt;br /&gt;
&lt;br /&gt;
=== Todo ===&lt;br /&gt;
* [[ Long Term Goals ]]&lt;br /&gt;
* [[ Project Infrastructure Enhancements ]]&lt;br /&gt;
* [[ Bugs ]]&lt;br /&gt;
* [[ FGFS Todo ]]&lt;br /&gt;
* [[ Feature Requests / Proposals / Ideas ]]&lt;br /&gt;
* [[ FlightGear Expo Checklist ]]&lt;br /&gt;
&lt;br /&gt;
=== Done ===&lt;br /&gt;
* [[ Changes since 0.9.10 ]]&lt;br /&gt;
&lt;br /&gt;
=== Miscellaneous ===&lt;br /&gt;
* [[ Glass Cockpit Projects ]]&lt;br /&gt;
* [[ Copyright Inquiry ]]&lt;br /&gt;
* [http://www.cafepress.com/fgfs_gear FlightGear - Gear] &lt;br /&gt;
* [[Resources]]&lt;br /&gt;
* [[ Sign Specification Proposal ]]&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Howto:Aerial_refueling&amp;diff=2713</id>
		<title>Howto:Aerial refueling</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Howto:Aerial_refueling&amp;diff=2713"/>
		<updated>2006-07-18T15:37:27Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Reverted edits by 163.21.25.5 (Talk); changed back to last version by Hellosimon&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== What's possible ==&lt;br /&gt;
&lt;br /&gt;
At present, there are two tanker aircraft (KC135-E and KA6-D) and three receiving aircraft (A4F, Lightning and T38) capable of in-air refuelling.  When flying one of these aircraft in the default scenery area, one can locate the tanker aircraft using air-air TACAN and/or radar and then receive a full or partial load of fuel by flying in close formation behind the tanker.  Refuelling is also possible between aircraft in a MultiPlayer session. The KC135 is a boom refueller, while the KA6 has a hose. The A4F and Lightning are both fitted with a probe for hose refuelling while the T38 is fitted with a boom receiver. At the moment, either type can refuel from any tanker, but in the future it is likely that the correct type will have to be used.&lt;br /&gt;
&lt;br /&gt;
== Necessary preparations ==&lt;br /&gt;
&lt;br /&gt;
Like the aircraft carriers, AAR is implemented as an &amp;quot;AI scenario&amp;quot;.  Selecting these normally requires editing the &amp;quot;preferences.xml&amp;quot; file in the flightgear data directory.&lt;br /&gt;
&lt;br /&gt;
There is a shortcut in this case though; simply selecting the Lightning, A4F or T38 should automatically load a scenario containing a tanker, assuming you haven't changed anything in your preferences.xml file.&lt;br /&gt;
&lt;br /&gt;
Assuming this is the case, choose one of the aforementioned aircraft, make sure that &amp;quot;AI models&amp;quot; are enabled and start at KSFO (the default airport.)&lt;br /&gt;
&lt;br /&gt;
Depending on the scenario, you might see the tanker crossing overhead when the sim starts; if not, don't worry.&lt;br /&gt;
&lt;br /&gt;
== In the cockpit ==&lt;br /&gt;
&lt;br /&gt;
Perhaps the first thing to do after starting the engines if necessary is to select the appropriate TACAN channel if your aircraft is so equipped (the A4F and Lightning both are).  For the KC135 (by default used by the Lightning and T37) this is currently &amp;quot;040X&amp;quot;, and for the KA6D (used by the A4F) it is &amp;quot;050X&amp;quot;.  Enter this channel using the relevant dropdown boxes in the &amp;quot;radios&amp;quot; dialogue (from the menus, &amp;quot;equipment/radios&amp;quot; or press control-r).&lt;br /&gt;
&lt;br /&gt;
You should now see the current bearing to the tanker indicated in the nav display of the A4 or the TACAN indicator (green needle) in the Lightning.  If the tanker is within range, it will also appear on the radar display of the T38 or Lightning.  Take off...&lt;br /&gt;
&lt;br /&gt;
== In the Air ==&lt;br /&gt;
&lt;br /&gt;
Turn to an appropriate heading, guided by the TACAN bearing (you should try a &amp;quot;leading&amp;quot; approach to close in on the tanker) and look for the tanker on the radar or nav. screen.  Around 5nm away, you should reduce your speed to around 20kts faster than the tanker (these fly at 280 kts TAS) - a &amp;quot;slow overtake&amp;quot;.  The KC135 will be visible from about 10nm, the KA6-D, being smaller, just over 1 nm.  You should use airbrakes as necessary to keep control of your speed should you find yourself overshooting.&lt;br /&gt;
&lt;br /&gt;
Close to within 50ft of the tanker (don't get too close, or visual artifacts might hide the boom from view).  You should see indication in the cockpit that you are receiving fuel - there is a green light in the A4 fuel gauge, and you should see the indicated tank load increase.&lt;br /&gt;
&lt;br /&gt;
Getting to this stage is not necessarily easy - it can take a lot of practice.  As with carrier landings, this is not an easy manoeuver in real life either and there are additional complications in the sim; the tanker, being an AI model, is unaffected by the wind and flies TAS (True Air Speed), while you are flying IAS (Indicated Air Speed) and are affected by the environment.  As in real life, your aircraft will also steadily increase in weight as the tanks fill which will affect the trim of the aircraft. (You might find it helpful to use the autothrottle to help control your speed - ctrl-s then Page Up/Down to increase and decrease the set speed.)&lt;br /&gt;
&lt;br /&gt;
Once your tanks are full, or you have taken as much fuel as you wish, close the throttle a little, back away from the tanker and continue your intended flight.&lt;br /&gt;
&lt;br /&gt;
== More advanced topics ==&lt;br /&gt;
&lt;br /&gt;
=== Multiplayer Refuelling ===&lt;br /&gt;
&lt;br /&gt;
Refuelling is possible within a MultiPlayer session given certain conditions.  A basic flyable KC135 model is available - the pilot of this aircraft should use the callsign &amp;quot;MOBIL1&amp;quot;, &amp;quot;MOBIL2&amp;quot; or &amp;quot;MOBIL3&amp;quot;.  Other numbers are acceptable, but only these three have A-A TACAN channels assigned.  These are 060X, 061X and 062X respectively.&lt;br /&gt;
&lt;br /&gt;
If the receiving aircraft uses a YASim FDM, there are no further complications.  Should the receiving aircraft be JSBSim based, the user must make sure that there are no AI tankers in their configuration.  This means disabling (commenting out) all refuelling &amp;quot;scenarios&amp;quot; in the relevant aircraft-set.xml and in preferences.xml.&lt;br /&gt;
&lt;br /&gt;
MP refuelling works in exactly the same way as AI refuelling and is a fun challenge.  It is best to ensure that your network connection is as free from interruptions as possible; the MP code does a degree of prediction if there is a &amp;quot;blip&amp;quot; in the stream of packets and this can make close formation flight very difficult or even impossible.&lt;br /&gt;
&lt;br /&gt;
=== Selecting Different Scenarios ===&lt;br /&gt;
&lt;br /&gt;
There are several AAR scenarios available in the AI directory.  refueling_demo.xml has a KC135 circling near KSFO at 3000ft; refueling_demo_1.xml the KC135 on a North/South towline at 8000ft and refueling_demo_2.xml the KA6D on a similar N/S path but at 8500ft.&lt;br /&gt;
&lt;br /&gt;
These can be selected by several methods; using the --ai-scenario command line option, or by editing preferences.xml.&lt;br /&gt;
&lt;br /&gt;
==== Command line method ====&lt;br /&gt;
&lt;br /&gt;
Add the --ai-scenario option to your usual flightgear command line; e.g. &amp;lt;code&amp;gt;fgfs --aircraft=lightning --ai-scenario=refueling_demo_2&amp;lt;/code&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==== Preferences.xml method ====&lt;br /&gt;
Use your operating system's search facility to locate this if you don't know where it is).  Open preferences.xml in a text editor (e.g. notepad if on windows) and search for the &amp;lt;ai&amp;gt; &amp;lt;/ai&amp;gt; tags.  Place a line like &amp;lt;code&amp;gt;&amp;lt;scenario&amp;gt;refueling_demo&amp;lt;/scenario&amp;gt;&amp;lt;/code&amp;gt; somewhere within the &amp;lt;ai&amp;gt; tags; you should see other scenarios already there too, perhaps commented out : i.e. with &amp;lt;! --  --&amp;gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=User_talk:Hellosimon&amp;diff=2712</id>
		<title>User talk:Hellosimon</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=User_talk:Hellosimon&amp;diff=2712"/>
		<updated>2006-07-18T15:21:16Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Mediawiki has been updated to 1.6.7.  Email me (hellosimon at gmail com) with any site problems.  [[User:Hellosimon|Hellosimon]] 12:16, 10 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
The rss and atom feeds have been fixed - There were extra newlines that needed to be removed at the end of LocalSettings.php [[User:Hellosimon|Hellosimon]] 13:12, 20 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
I've now restricted edits to users who have confirmed their email address.  I've done this because I think we have some spam bot users and a captcha won't help those at this point.  Also, I plan on updating medawiki to 1.7.x after I test the upgrade on a local mirror. [[User:Hellosimon|Hellosimon]] 11:21, 18 July 2006 (EDT)&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=2691</id>
		<title>Talk:Main Page/Archive/2006-2011</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=2691"/>
		<updated>2006-07-15T06:53:40Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Reverted edits by 195.175.37.71 (Talk); changed back to last version by Hellosimon&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Sorry, I don't want to junk up the main page with someone's opinion on &amp;quot;the manual&amp;quot; and the wiki documentation.  [[User:Hellosimon|Hellosimon]] 10:41, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I too think that the Main Page shouldn't get too verbose.  I don't understand the need for that little comment in the User Documentation section, but if someone insists on having it placed on the wiki, then a compromise should be reached somehow.  I suggest moving it to some other articles. --[[User:64.229.232.249|64.229.232.249]] 16:14, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I agree: Simon, while you have definitely done some nice job here, you need to realize that you can achieve much more by collaborating constructively with other contributors rather than by simply opposing contributions of people who have in fact contributed significant amounts of work to the project for quite some time. &lt;br /&gt;
I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki. &lt;br /&gt;
There's simply a very clear relationship between &amp;quot;The Manual&amp;quot; and &amp;quot;the wiki&amp;quot;, if you fail to recognize this, your contribution (that is, this wiki) -even though very much needed and extremely worthwhile- is condemned to fail eventually. &lt;br /&gt;
&lt;br /&gt;
On the other hand, I would recommend to also look into making &amp;quot;The Manual&amp;quot; editable via some sort of web based frontend, this would also ensure that people are able to easily contribute modifications to the manual, which is really the ultimate source for flightgear users. &lt;br /&gt;
A possible approach might be to import the underlying LaTex sources in docbook format into some sort of docbook based wiki (i.e. http://sourceforge.net/projects/doc-book/).&lt;br /&gt;
&lt;br /&gt;
Also, I feel there are some sections covered in the wiki that aren't really optimally handled by a wiki: most notably the &amp;quot;FAQ&amp;quot; section should preferably be implemented via some sort of dynamic FAQ system (i.e. http://www.phpmyfaq.de), likewise the sections titled &amp;quot;Bugs&amp;quot;, &amp;quot;TODO&amp;quot;, &amp;quot;Feature Requests&amp;quot;, &amp;quot;ideas&amp;quot; etc. could probably all be handled far more effectively by using a real bug tracker such as bugzilla (http://www.bugzilla.org/), phpbugtracker (http://phpbt.sourceforge.net/) or mantis (http://www.mantisbt.org).&lt;br /&gt;
&lt;br /&gt;
Concerning database backups: you should preferably set up a cron job to upload a  compresed SQL dump to the flightgear FTP server on a regular (daily?) basis, I am sure you'll be granted write access to a corresponding directory, this would ensure that everything will in fact be backed up regularly and possibly even mirrored.&lt;br /&gt;
&lt;br /&gt;
[&amp;quot;I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki.&amp;quot;]&lt;br /&gt;
This assumption is correct. The manual is the center piece of the FlightGear user documentation, so does anyone have a suggestion (one that makes sense) on how to deal with my comments aside from &amp;quot;removing it&amp;quot; or &amp;quot;moving it into negligence/insignificance&amp;quot; ?&lt;br /&gt;
Martin.&lt;br /&gt;
&lt;br /&gt;
Martin's text has been placed (not by me) in the paragraphs at the top.  I rather like this compromise and hope it works for everyone.  I agree a bugtracker would be ideal - didn't someone start one?  Also, if anyone wants to grant ftp access to a server, I'll gladly cron a script to upload the backup tarball.  I have it backed up to multiple locations in the meantime. &lt;br /&gt;
- [[User:Hellosimon|Hellosimon]] 11:36, 11 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
A couple of days ago I started setting up a local test bugZilla installation, while I am currently unable to provide reliable hosting, I would really not mind installing it on whatever webspace is available, likewise I can provide the preconfigured database dump if someone else wants to use the preconfigured Flightgear specific categories.--[[User:FlightZilla|FlightZilla]] 17:59, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
Regarding the manual: isn't there a possibility to export wikimedia pages to PDF format? That way, we could maintain the whole manual via this wiki. Any thoughts?--[[User:FlightZilla|FlightZilla]] 18:10, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
If you check out the following links, you'll see that there are extensions available that would make it possible to easily provide PDF exports for all contents stored here, that way it would also become feasible to consider migrating the entire manual over to this wiki, so that it would also become more maintainble in the end:&lt;br /&gt;
http://meta.wikimedia.org/wiki/WikiPDF&lt;br /&gt;
http://meta.wikimedia.org/wiki/PDF_Export&lt;br /&gt;
--[[User:FlightZilla|FlightZilla]] 17:21, 19 June 2006 (EDT)&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=2689</id>
		<title>Talk:Main Page/Archive/2006-2011</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=2689"/>
		<updated>2006-07-15T00:34:06Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Reverted edits by 195.175.37.71 (Talk); changed back to last version by Hellosimon&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Sorry, I don't want to junk up the main page with someone's opinion on &amp;quot;the manual&amp;quot; and the wiki documentation.  [[User:Hellosimon|Hellosimon]] 10:41, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I too think that the Main Page shouldn't get too verbose.  I don't understand the need for that little comment in the User Documentation section, but if someone insists on having it placed on the wiki, then a compromise should be reached somehow.  I suggest moving it to some other articles. --[[User:64.229.232.249|64.229.232.249]] 16:14, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I agree: Simon, while you have definitely done some nice job here, you need to realize that you can achieve much more by collaborating constructively with other contributors rather than by simply opposing contributions of people who have in fact contributed significant amounts of work to the project for quite some time. &lt;br /&gt;
I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki. &lt;br /&gt;
There's simply a very clear relationship between &amp;quot;The Manual&amp;quot; and &amp;quot;the wiki&amp;quot;, if you fail to recognize this, your contribution (that is, this wiki) -even though very much needed and extremely worthwhile- is condemned to fail eventually. &lt;br /&gt;
&lt;br /&gt;
On the other hand, I would recommend to also look into making &amp;quot;The Manual&amp;quot; editable via some sort of web based frontend, this would also ensure that people are able to easily contribute modifications to the manual, which is really the ultimate source for flightgear users. &lt;br /&gt;
A possible approach might be to import the underlying LaTex sources in docbook format into some sort of docbook based wiki (i.e. http://sourceforge.net/projects/doc-book/).&lt;br /&gt;
&lt;br /&gt;
Also, I feel there are some sections covered in the wiki that aren't really optimally handled by a wiki: most notably the &amp;quot;FAQ&amp;quot; section should preferably be implemented via some sort of dynamic FAQ system (i.e. http://www.phpmyfaq.de), likewise the sections titled &amp;quot;Bugs&amp;quot;, &amp;quot;TODO&amp;quot;, &amp;quot;Feature Requests&amp;quot;, &amp;quot;ideas&amp;quot; etc. could probably all be handled far more effectively by using a real bug tracker such as bugzilla (http://www.bugzilla.org/), phpbugtracker (http://phpbt.sourceforge.net/) or mantis (http://www.mantisbt.org).&lt;br /&gt;
&lt;br /&gt;
Concerning database backups: you should preferably set up a cron job to upload a  compresed SQL dump to the flightgear FTP server on a regular (daily?) basis, I am sure you'll be granted write access to a corresponding directory, this would ensure that everything will in fact be backed up regularly and possibly even mirrored.&lt;br /&gt;
&lt;br /&gt;
[&amp;quot;I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki.&amp;quot;]&lt;br /&gt;
This assumption is correct. The manual is the center piece of the FlightGear user documentation, so does anyone have a suggestion (one that makes sense) on how to deal with my comments aside from &amp;quot;removing it&amp;quot; or &amp;quot;moving it into negligence/insignificance&amp;quot; ?&lt;br /&gt;
Martin.&lt;br /&gt;
&lt;br /&gt;
Martin's text has been placed (not by me) in the paragraphs at the top.  I rather like this compromise and hope it works for everyone.  I agree a bugtracker would be ideal - didn't someone start one?  Also, if anyone wants to grant ftp access to a server, I'll gladly cron a script to upload the backup tarball.  I have it backed up to multiple locations in the meantime. &lt;br /&gt;
- [[User:Hellosimon|Hellosimon]] 11:36, 11 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
A couple of days ago I started setting up a local test bugZilla installation, while I am currently unable to provide reliable hosting, I would really not mind installing it on whatever webspace is available, likewise I can provide the preconfigured database dump if someone else wants to use the preconfigured Flightgear specific categories.--[[User:FlightZilla|FlightZilla]] 17:59, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
Regarding the manual: isn't there a possibility to export wikimedia pages to PDF format? That way, we could maintain the whole manual via this wiki. Any thoughts?--[[User:FlightZilla|FlightZilla]] 18:10, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
If you check out the following links, you'll see that there are extensions available that would make it possible to easily provide PDF exports for all contents stored here, that way it would also become feasible to consider migrating the entire manual over to this wiki, so that it would also become more maintainble in the end:&lt;br /&gt;
http://meta.wikimedia.org/wiki/WikiPDF&lt;br /&gt;
http://meta.wikimedia.org/wiki/PDF_Export&lt;br /&gt;
--[[User:FlightZilla|FlightZilla]] 17:21, 19 June 2006 (EDT)&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=2679</id>
		<title>Talk:Main Page/Archive/2006-2011</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Talk:Main_Page/Archive/2006-2011&amp;diff=2679"/>
		<updated>2006-07-14T16:40:15Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Reverted edits by 194.165.130.93 (Talk); changed back to last version by FlightZilla&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Sorry, I don't want to junk up the main page with someone's opinion on &amp;quot;the manual&amp;quot; and the wiki documentation.  [[User:Hellosimon|Hellosimon]] 10:41, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I too think that the Main Page shouldn't get too verbose.  I don't understand the need for that little comment in the User Documentation section, but if someone insists on having it placed on the wiki, then a compromise should be reached somehow.  I suggest moving it to some other articles. --[[User:64.229.232.249|64.229.232.249]] 16:14, 5 June 2006 (PDT)&lt;br /&gt;
&lt;br /&gt;
I agree: Simon, while you have definitely done some nice job here, you need to realize that you can achieve much more by collaborating constructively with other contributors rather than by simply opposing contributions of people who have in fact contributed significant amounts of work to the project for quite some time. &lt;br /&gt;
I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki. &lt;br /&gt;
There's simply a very clear relationship between &amp;quot;The Manual&amp;quot; and &amp;quot;the wiki&amp;quot;, if you fail to recognize this, your contribution (that is, this wiki) -even though very much needed and extremely worthwhile- is condemned to fail eventually. &lt;br /&gt;
&lt;br /&gt;
On the other hand, I would recommend to also look into making &amp;quot;The Manual&amp;quot; editable via some sort of web based frontend, this would also ensure that people are able to easily contribute modifications to the manual, which is really the ultimate source for flightgear users. &lt;br /&gt;
A possible approach might be to import the underlying LaTex sources in docbook format into some sort of docbook based wiki (i.e. http://sourceforge.net/projects/doc-book/).&lt;br /&gt;
&lt;br /&gt;
Also, I feel there are some sections covered in the wiki that aren't really optimally handled by a wiki: most notably the &amp;quot;FAQ&amp;quot; section should preferably be implemented via some sort of dynamic FAQ system (i.e. http://www.phpmyfaq.de), likewise the sections titled &amp;quot;Bugs&amp;quot;, &amp;quot;TODO&amp;quot;, &amp;quot;Feature Requests&amp;quot;, &amp;quot;ideas&amp;quot; etc. could probably all be handled far more effectively by using a real bug tracker such as bugzilla (http://www.bugzilla.org/), phpbugtracker (http://phpbt.sourceforge.net/) or mantis (http://www.mantisbt.org).&lt;br /&gt;
&lt;br /&gt;
Concerning database backups: you should preferably set up a cron job to upload a  compresed SQL dump to the flightgear FTP server on a regular (daily?) basis, I am sure you'll be granted write access to a corresponding directory, this would ensure that everything will in fact be backed up regularly and possibly even mirrored.&lt;br /&gt;
&lt;br /&gt;
[&amp;quot;I think, the corresponding paragraph wasn't an &amp;quot;opinion&amp;quot; on the manual or the wiki and it certainly wasn't meant to reflect badly upon your efforts, rather it was merely meant to complement the wiki.&amp;quot;]&lt;br /&gt;
This assumption is correct. The manual is the center piece of the FlightGear user documentation, so does anyone have a suggestion (one that makes sense) on how to deal with my comments aside from &amp;quot;removing it&amp;quot; or &amp;quot;moving it into negligence/insignificance&amp;quot; ?&lt;br /&gt;
Martin.&lt;br /&gt;
&lt;br /&gt;
Martin's text has been placed (not by me) in the paragraphs at the top.  I rather like this compromise and hope it works for everyone.  I agree a bugtracker would be ideal - didn't someone start one?  Also, if anyone wants to grant ftp access to a server, I'll gladly cron a script to upload the backup tarball.  I have it backed up to multiple locations in the meantime. &lt;br /&gt;
- [[User:Hellosimon|Hellosimon]] 11:36, 11 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
A couple of days ago I started setting up a local test bugZilla installation, while I am currently unable to provide reliable hosting, I would really not mind installing it on whatever webspace is available, likewise I can provide the preconfigured database dump if someone else wants to use the preconfigured Flightgear specific categories.--[[User:FlightZilla|FlightZilla]] 17:59, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
Regarding the manual: isn't there a possibility to export wikimedia pages to PDF format? That way, we could maintain the whole manual via this wiki. Any thoughts?--[[User:FlightZilla|FlightZilla]] 18:10, 17 June 2006 (EDT)&lt;br /&gt;
&lt;br /&gt;
If you check out the following links, you'll see that there are extensions available that would make it possible to easily provide PDF exports for all contents stored here, that way it would also become feasible to consider migrating the entire manual over to this wiki, so that it would also become more maintainble in the end:&lt;br /&gt;
http://meta.wikimedia.org/wiki/WikiPDF&lt;br /&gt;
http://meta.wikimedia.org/wiki/PDF_Export&lt;br /&gt;
--[[User:FlightZilla|FlightZilla]] 17:21, 19 June 2006 (EDT)&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Command_line_options&amp;diff=2671</id>
		<title>Command line options</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Command_line_options&amp;diff=2671"/>
		<updated>2006-07-11T17:10:32Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: /* Features */  remove nonsense&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Usage: fgfs [ option ... ]&lt;br /&gt;
&lt;br /&gt;
{|&lt;br /&gt;
|__TOC__&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==== General Options ====&lt;br /&gt;
   --help, -h                   Show the most relevant command line options&lt;br /&gt;
   --verbose, -v                Show all command line options when combined&lt;br /&gt;
                                with --help or -h&lt;br /&gt;
   --fg-root=path               Specify the root data path&lt;br /&gt;
   --fg-scenery=path            Specify the base scenery path;&lt;br /&gt;
                                Defaults to $FG_ROOT/Scenery&lt;br /&gt;
   --language=code              Select the language for this session&lt;br /&gt;
   --disable-game-mode          Disable full-screen game mode&lt;br /&gt;
   --enable-game-mode           Enable full-screen game mode&lt;br /&gt;
   --disable-splash-screen      Disable splash screen&lt;br /&gt;
   --enable-splash-screen       Enable splash screen&lt;br /&gt;
   --disable-intro-music        Disable introduction music&lt;br /&gt;
   --enable-intro-music         Enable introduction music&lt;br /&gt;
   --disable-mouse-pointer      Disable extra mouse pointer&lt;br /&gt;
   --enable-mouse-pointer       Enable extra mouse pointer&lt;br /&gt;
                                (i.e. for full screen Voodoo based cards)&lt;br /&gt;
   --disable-random-objects     Exclude random scenery objects&lt;br /&gt;
                                (buildings, etc.)&lt;br /&gt;
   --enable-random-objects      Include random scenery objects&lt;br /&gt;
                                (buildings, etc.)&lt;br /&gt;
   --disable-ai-models          Disable the artifical traffic subsystem.&lt;br /&gt;
   --enable-ai-models           Enable the artifical traffic.&lt;br /&gt;
   --disable-freeze             Start in a running state&lt;br /&gt;
   --enable-freeze              Start in a frozen state&lt;br /&gt;
   --disable-fuel-freeze        Fuel is consumed normally&lt;br /&gt;
   --enable-fuel-freeze         Fuel tank quantity forced to remain constant&lt;br /&gt;
   --disable-clock-freeze       Clock advances normally&lt;br /&gt;
   --enable-clock-freeze        Do not advance clock&lt;br /&gt;
   --control=mode               Primary control mode (joystick, keyboard,&lt;br /&gt;
                                mouse)&lt;br /&gt;
   --enable-auto-coordination   Enable auto coordination&lt;br /&gt;
   --disable-auto-coordination  Disable auto coordination&lt;br /&gt;
   --browser-app=path           Specify path to your web browser&lt;br /&gt;
   --prop:name=value            Set property  to &lt;br /&gt;
   --config=path                Load additional properties from path&lt;br /&gt;
   --units-feet                 Use feet for distances&lt;br /&gt;
   --units-meters               Use meters for distances&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Features ====&lt;br /&gt;
   --disable-panel              Disable instrument panel&lt;br /&gt;
   --enable-panel               Enable instrument panel&lt;br /&gt;
   --disable-sound              Disable sound effects&lt;br /&gt;
   --enable-sound               Enable sound effects&lt;br /&gt;
   --disable-hud                Disable Heads Up Display (HUD)&lt;br /&gt;
   --enable-hud                 Enable Heads Up Display (HUD)&lt;br /&gt;
   --disable-anti-alias-hud     Disable anti-aliased HUD&lt;br /&gt;
   --enable-anti-alias-hud      Enable anti-aliased HUD&lt;br /&gt;
   --disable-hud-3d             Disable 3D HUD&lt;br /&gt;
   --enable-hud-3d              Enable 3D HUD&lt;br /&gt;
&lt;br /&gt;
==== Aircraft ====&lt;br /&gt;
   --aircraft=name              Select an aircraft profile as defined by a top&lt;br /&gt;
                                level -set.xml&lt;br /&gt;
   --show-aircraft              Print a list of the currently available&lt;br /&gt;
                                aircraft types&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Flight Model ====&lt;br /&gt;
   --fdm=name                   Select the core flight dynamics model&lt;br /&gt;
                                Can be one of jsb, larcsim, yasim, magic,&lt;br /&gt;
                                balloon, ada, external, or null&lt;br /&gt;
   --aero=name                  Select aircraft aerodynamics model to load&lt;br /&gt;
   --model-hz=n                 Run the FDM this rate (iterations per second)&lt;br /&gt;
   --speed=n                    Run the FDM 'n' times faster than real time&lt;br /&gt;
   --notrim                     Do NOT attempt to trim the model&lt;br /&gt;
                                (only with fdm=jsbsim)&lt;br /&gt;
   --on-ground                  Start at ground level (default)&lt;br /&gt;
   --in-air                     Start in air (implied when using --altitude)&lt;br /&gt;
   --wind=DIR@SPEED             Specify wind coming from DIR (degrees) at SPEED&lt;br /&gt;
                                (knots)&lt;br /&gt;
   --turbulence=0.0 to 1.0      Specify turbulence from 0.0 (calm) to 1.0&lt;br /&gt;
                                (severe)&lt;br /&gt;
&lt;br /&gt;
   --ceiling=FT_ASL[:THICKNESS_FT]&lt;br /&gt;
                                Create an overcast ceiling, optionally with a&lt;br /&gt;
                                specific thickness (defaults to 2000 ft).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Aircraft model directory (UIUC FDM ONLY) ==== &lt;br /&gt;
   --aircraft-dir=path          Aircraft directory relative to the path of the&lt;br /&gt;
                                executable&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Initial Position and Orientation ====&lt;br /&gt;
   --airport=ID                 Specify starting position relative to an&lt;br /&gt;
                                airport&lt;br /&gt;
   --runway=rwy_no              Specify starting runway (must also specify an&lt;br /&gt;
                                airport)&lt;br /&gt;
   --vor=ID                     Specify starting position relative to a VOR&lt;br /&gt;
   --ndb=ID                     Specify starting position relative to an NDB&lt;br /&gt;
   --fix=ID                     Specify starting position relative to a fix&lt;br /&gt;
   --airport-id=ID              (Obsolete; use --airport instead.)&lt;br /&gt;
   --offset-distance=nm         Specify distance to reference point (statute&lt;br /&gt;
                                miles)&lt;br /&gt;
   --offset-azimuth=degrees     Specify heading to reference point&lt;br /&gt;
   --lon=degrees                Starting longitude (west = -)&lt;br /&gt;
   --lat=degrees                Starting latitude (south = -)&lt;br /&gt;
   --altitude=value             Starting altitude&lt;br /&gt;
                                (in feet unless --units-meters specified)&lt;br /&gt;
   --heading=degrees            Specify heading (yaw) angle (Psi)&lt;br /&gt;
   --roll=degrees               Specify roll angle (Phi)&lt;br /&gt;
   --pitch=degrees              Specify pitch angle (Theta)&lt;br /&gt;
   --uBody=units_per_sec        Specify velocity along the body X axis&lt;br /&gt;
                                (in feet unless --units-meters specified)&lt;br /&gt;
   --vBody=units_per_sec        Specify velocity along the body Y axis&lt;br /&gt;
                                (in feet unless --units-meters specified)&lt;br /&gt;
   --wBody=units_per_sec        Specify velocity along the body Z axis&lt;br /&gt;
                                (in feet unless --units-meters specified)&lt;br /&gt;
   --vc=knots                   Specify initial airspeed&lt;br /&gt;
   --mach=num                   Specify initial mach number&lt;br /&gt;
   --glideslope=degrees         Specify flight path angle (can be positive)&lt;br /&gt;
   --roc=fpm                    Specify initial climb rate (can be negative)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Rendering Options ====&lt;br /&gt;
   --bpp=depth                  Specify the bits per pixel&lt;br /&gt;
   --fog-disable                Disable fog/haze&lt;br /&gt;
   --fog-fastest                Enable fastest fog/haze&lt;br /&gt;
   --fog-nicest                 Enable nicest fog/haze&lt;br /&gt;
   --disable-horizon-effect     Disable celestial body growth illusion near the&lt;br /&gt;
                                horizon&lt;br /&gt;
   --enable-horizon-effect      Enable celestial body growth illusion near the&lt;br /&gt;
                                horizon&lt;br /&gt;
   --disable-enhanced-lighting  Disable enhanced runway lighting&lt;br /&gt;
   --enable-enhanced-lighting   Enable enhanced runway lighting&lt;br /&gt;
&lt;br /&gt;
   --disable-distance-attenuation&lt;br /&gt;
                                Disable runway light distance attenuation&lt;br /&gt;
&lt;br /&gt;
   --enable-distance-attenuation&lt;br /&gt;
                                Enable runway light distance attenuation&lt;br /&gt;
&lt;br /&gt;
   --disable-specular-highlight&lt;br /&gt;
                                Disable specular reflections on textured&lt;br /&gt;
                                objects&lt;br /&gt;
   --enable-specular-highlight  Enable specular reflections on textured objects&lt;br /&gt;
   --enable-clouds              Enable 2D (flat) cloud layers&lt;br /&gt;
   --disable-clouds             Disable 2D (flat) cloud layers&lt;br /&gt;
   --enable-clouds3d            Enable 3D (volumetric) cloud layers&lt;br /&gt;
   --disable-clouds3d           Disable 3D (volumetric) cloud layers&lt;br /&gt;
   --fov=degrees                Specify field of view angle&lt;br /&gt;
   --disable-fullscreen         Disable fullscreen mode&lt;br /&gt;
   --enable-fullscreen          Enable fullscreen mode&lt;br /&gt;
   --shading-flat               Enable flat shading&lt;br /&gt;
   --shading-smooth             Enable smooth shading&lt;br /&gt;
   --disable-skyblend           Disable sky blending&lt;br /&gt;
   --enable-skyblend            Enable sky blending&lt;br /&gt;
   --disable-textures           Disable textures&lt;br /&gt;
   --enable-textures            Enable textures&lt;br /&gt;
   --disable-wireframe          Disable wireframe drawing mode&lt;br /&gt;
   --enable-wireframe           Enable wireframe drawing mode&lt;br /&gt;
   --geometry=WxH               Specify window geometry (640x480, etc)&lt;br /&gt;
   --view-offset=value          Specify the default forward view direction as&lt;br /&gt;
                                an offset from straight ahead. Allowable values&lt;br /&gt;
                                are LEFT, RIGHT, CENTER, or a specific number&lt;br /&gt;
                                in degrees&lt;br /&gt;
   --visibility=meters          Specify initial visibility&lt;br /&gt;
   --visibility-miles=miles     Specify initial visibility in miles&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Hud Options ====&lt;br /&gt;
   --hud-tris                   Hud displays number of triangles rendered&lt;br /&gt;
   --hud-culled                 Hud displays percentage of triangles culled&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Time Options ====&lt;br /&gt;
&lt;br /&gt;
   --timeofday={dawn,noon,dusk,midnight}&lt;br /&gt;
                                Specify a time of day&lt;br /&gt;
   --time-offset=[+-]hh:mm:ss   Add this time offset&lt;br /&gt;
   --time-match-real            Synchronize time with real-world time&lt;br /&gt;
   --time-match-local           Synchronize time with local real-world time&lt;br /&gt;
&lt;br /&gt;
   --start-date-sys=yyyy:mm:dd:hh:mm:ss&lt;br /&gt;
                                Specify a starting date/time with respect to&lt;br /&gt;
                                system time&lt;br /&gt;
&lt;br /&gt;
   --start-date-gmt=yyyy:mm:dd:hh:mm:ss&lt;br /&gt;
                                Specify a starting date/time with respect to&lt;br /&gt;
                                Greenwich Mean Time&lt;br /&gt;
&lt;br /&gt;
   --start-date-lat=yyyy:mm:dd:hh:mm:ss&lt;br /&gt;
                                Specify a starting date/time with respect to&lt;br /&gt;
                                Local Aircraft Time&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Network Options ====&lt;br /&gt;
   --httpd=port                 Enable http server on the specified port&lt;br /&gt;
   --telnet=port                Enable telnet server on the specified port&lt;br /&gt;
   --jpg-httpd=port             Enable screen shot http server on the specified&lt;br /&gt;
                                port&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== MultiPlayer Options ====&lt;br /&gt;
   --callsign                   assign a unique name to a player&lt;br /&gt;
&lt;br /&gt;
   --multiplay={in|out},hz,address,port&lt;br /&gt;
                                Specify multipilot communication settings&lt;br /&gt;
                                multiple instances can be used&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Route/Way Point Options ====&lt;br /&gt;
   --wp=ID[@alt]                Specify a waypoint for the GC autopilot;&lt;br /&gt;
                                multiple instances can be used&lt;br /&gt;
   --flight-plan=file           Read all waypoints from a file&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== IO Options ==== &lt;br /&gt;
   --generic=params             Open connection using a predefined&lt;br /&gt;
                                communication interface and a preselected&lt;br /&gt;
                                communication protocol&lt;br /&gt;
   --garmin=params              Open connection using the Garmin GPS protocol&lt;br /&gt;
   --joyclient=params           Open connection to an Agwagon joystick&lt;br /&gt;
   --jsclient=params            Open connection to a remote joystick&lt;br /&gt;
   --native-ctrls=params        Open connection using the FG Native Controls&lt;br /&gt;
                                protocol&lt;br /&gt;
   --native-fdm=params          Open connection using the FG Native FDM&lt;br /&gt;
                                protocol&lt;br /&gt;
   --native=params              Open connection using the FG Native protocol&lt;br /&gt;
   --nmea=params                Open connection using the NMEA protocol&lt;br /&gt;
   --opengc=params              Open connection using the OpenGC protocol&lt;br /&gt;
   --props=params               Open connection using the interactive property&lt;br /&gt;
                                manager&lt;br /&gt;
   --pve=params                 Open connection using the PVE protocol&lt;br /&gt;
   --ray=params                 Open connection using the Ray Woodworth motion&lt;br /&gt;
                                chair protocol&lt;br /&gt;
   --rul=params                 Open connection using the RUL protocol&lt;br /&gt;
   --atc610x                    Enable atc610x interface&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Avionics Options ====&lt;br /&gt;
   --nav1=[radial:]frequency    Set the NAV1 radio frequency, optionally&lt;br /&gt;
                                preceded by a radial.&lt;br /&gt;
   --nav2=[radial:]frequency    Set the NAV2 radio frequency, optionally&lt;br /&gt;
                                preceded by a radial.&lt;br /&gt;
   --adf=[rotation:]frequency   Set the ADF radio frequency, optionally&lt;br /&gt;
                                preceded by a card rotation.&lt;br /&gt;
   --dme={nav1|nav2|frequency}  Slave the ADF to one of the NAV radios, or set&lt;br /&gt;
                                its internal frequency.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Situation Options ====&lt;br /&gt;
&lt;br /&gt;
   --failure={pitot|static|system|vacuum}&lt;br /&gt;
                                Fail the pitot, static, vacuum, or electrical&lt;br /&gt;
                                system (repeat the option for multiple system&lt;br /&gt;
                                failures).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Debugging Options ====&lt;br /&gt;
&lt;br /&gt;
   --log-level={bulk,debug,info,warn,alert}&lt;br /&gt;
                                Set the logging level for this session.&lt;br /&gt;
                                0=verbose, 5=alerts only&lt;br /&gt;
   --trace-read=property        Trace the reads for a property;&lt;br /&gt;
                                multiple instances can be used&lt;br /&gt;
   --trace-write=property       Trace the writes for a property;&lt;br /&gt;
                                multiple instances can be used&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Command_line_options&amp;diff=2669</id>
		<title>Command line options</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Command_line_options&amp;diff=2669"/>
		<updated>2006-07-11T16:06:46Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Reverted edits by 219.240.12.173 (Talk); changed back to last version by 201.17.253.220&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Usage: fgfs [ option ... ]&lt;br /&gt;
&lt;br /&gt;
{|&lt;br /&gt;
|__TOC__&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==== General Options ====&lt;br /&gt;
   --help, -h                   Show the most relevant command line options&lt;br /&gt;
   --verbose, -v                Show all command line options when combined&lt;br /&gt;
                                with --help or -h&lt;br /&gt;
   --fg-root=path               Specify the root data path&lt;br /&gt;
   --fg-scenery=path            Specify the base scenery path;&lt;br /&gt;
                                Defaults to $FG_ROOT/Scenery&lt;br /&gt;
   --language=code              Select the language for this session&lt;br /&gt;
   --disable-game-mode          Disable full-screen game mode&lt;br /&gt;
   --enable-game-mode           Enable full-screen game mode&lt;br /&gt;
   --disable-splash-screen      Disable splash screen&lt;br /&gt;
   --enable-splash-screen       Enable splash screen&lt;br /&gt;
   --disable-intro-music        Disable introduction music&lt;br /&gt;
   --enable-intro-music         Enable introduction music&lt;br /&gt;
   --disable-mouse-pointer      Disable extra mouse pointer&lt;br /&gt;
   --enable-mouse-pointer       Enable extra mouse pointer&lt;br /&gt;
                                (i.e. for full screen Voodoo based cards)&lt;br /&gt;
   --disable-random-objects     Exclude random scenery objects&lt;br /&gt;
                                (buildings, etc.)&lt;br /&gt;
   --enable-random-objects      Include random scenery objects&lt;br /&gt;
                                (buildings, etc.)&lt;br /&gt;
   --disable-ai-models          Disable the artifical traffic subsystem.&lt;br /&gt;
   --enable-ai-models           Enable the artifical traffic.&lt;br /&gt;
   --disable-freeze             Start in a running state&lt;br /&gt;
   --enable-freeze              Start in a frozen state&lt;br /&gt;
   --disable-fuel-freeze        Fuel is consumed normally&lt;br /&gt;
   --enable-fuel-freeze         Fuel tank quantity forced to remain constant&lt;br /&gt;
   --disable-clock-freeze       Clock advances normally&lt;br /&gt;
   --enable-clock-freeze        Do not advance clock&lt;br /&gt;
   --control=mode               Primary control mode (joystick, keyboard,&lt;br /&gt;
                                mouse)&lt;br /&gt;
   --enable-auto-coordination   Enable auto coordination&lt;br /&gt;
   --disable-auto-coordination  Disable auto coordination&lt;br /&gt;
   --browser-app=path           Specify path to your web browser&lt;br /&gt;
   --prop:name=value            Set property  to &lt;br /&gt;
   --config=path                Load additional properties from path&lt;br /&gt;
   --units-feet                 Use feet for distances&lt;br /&gt;
   --units-meters               Use meters for distances&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Features ====&lt;br /&gt;
   --disable-panel              Disable instrument panel&lt;br /&gt;
   --enable-panel               Enable instrument panel&lt;br /&gt;
   --disable-sound              Disable sound effects&lt;br /&gt;
   --enable-sound               Enable sound effects&lt;br /&gt;
   --disable-hud                Disable Heads Up Display (HUD)&lt;br /&gt;
   --enable-hud                 Enable Heads Up Display (HUD)&lt;br /&gt;
   --disable-anti-alias-hud     Disable anti-aliased HUD&lt;br /&gt;
   --enable-anti-alias-hud      Enable anti-aliased HUD&lt;br /&gt;
   --disable-hud-3d             Disable 3D HUD&lt;br /&gt;
   --enable-hud-3d              Enable 3D HUD&lt;br /&gt;
210149511073119693344&lt;br /&gt;
&lt;br /&gt;
==== Aircraft ====&lt;br /&gt;
   --aircraft=name              Select an aircraft profile as defined by a top&lt;br /&gt;
                                level -set.xml&lt;br /&gt;
   --show-aircraft              Print a list of the currently available&lt;br /&gt;
                                aircraft types&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Flight Model ====&lt;br /&gt;
   --fdm=name                   Select the core flight dynamics model&lt;br /&gt;
                                Can be one of jsb, larcsim, yasim, magic,&lt;br /&gt;
                                balloon, ada, external, or null&lt;br /&gt;
   --aero=name                  Select aircraft aerodynamics model to load&lt;br /&gt;
   --model-hz=n                 Run the FDM this rate (iterations per second)&lt;br /&gt;
   --speed=n                    Run the FDM 'n' times faster than real time&lt;br /&gt;
   --notrim                     Do NOT attempt to trim the model&lt;br /&gt;
                                (only with fdm=jsbsim)&lt;br /&gt;
   --on-ground                  Start at ground level (default)&lt;br /&gt;
   --in-air                     Start in air (implied when using --altitude)&lt;br /&gt;
   --wind=DIR@SPEED             Specify wind coming from DIR (degrees) at SPEED&lt;br /&gt;
                                (knots)&lt;br /&gt;
   --turbulence=0.0 to 1.0      Specify turbulence from 0.0 (calm) to 1.0&lt;br /&gt;
                                (severe)&lt;br /&gt;
&lt;br /&gt;
   --ceiling=FT_ASL[:THICKNESS_FT]&lt;br /&gt;
                                Create an overcast ceiling, optionally with a&lt;br /&gt;
                                specific thickness (defaults to 2000 ft).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Aircraft model directory (UIUC FDM ONLY) ==== &lt;br /&gt;
   --aircraft-dir=path          Aircraft directory relative to the path of the&lt;br /&gt;
                                executable&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Initial Position and Orientation ====&lt;br /&gt;
   --airport=ID                 Specify starting position relative to an&lt;br /&gt;
                                airport&lt;br /&gt;
   --runway=rwy_no              Specify starting runway (must also specify an&lt;br /&gt;
                                airport)&lt;br /&gt;
   --vor=ID                     Specify starting position relative to a VOR&lt;br /&gt;
   --ndb=ID                     Specify starting position relative to an NDB&lt;br /&gt;
   --fix=ID                     Specify starting position relative to a fix&lt;br /&gt;
   --airport-id=ID              (Obsolete; use --airport instead.)&lt;br /&gt;
   --offset-distance=nm         Specify distance to reference point (statute&lt;br /&gt;
                                miles)&lt;br /&gt;
   --offset-azimuth=degrees     Specify heading to reference point&lt;br /&gt;
   --lon=degrees                Starting longitude (west = -)&lt;br /&gt;
   --lat=degrees                Starting latitude (south = -)&lt;br /&gt;
   --altitude=value             Starting altitude&lt;br /&gt;
                                (in feet unless --units-meters specified)&lt;br /&gt;
   --heading=degrees            Specify heading (yaw) angle (Psi)&lt;br /&gt;
   --roll=degrees               Specify roll angle (Phi)&lt;br /&gt;
   --pitch=degrees              Specify pitch angle (Theta)&lt;br /&gt;
   --uBody=units_per_sec        Specify velocity along the body X axis&lt;br /&gt;
                                (in feet unless --units-meters specified)&lt;br /&gt;
   --vBody=units_per_sec        Specify velocity along the body Y axis&lt;br /&gt;
                                (in feet unless --units-meters specified)&lt;br /&gt;
   --wBody=units_per_sec        Specify velocity along the body Z axis&lt;br /&gt;
                                (in feet unless --units-meters specified)&lt;br /&gt;
   --vc=knots                   Specify initial airspeed&lt;br /&gt;
   --mach=num                   Specify initial mach number&lt;br /&gt;
   --glideslope=degrees         Specify flight path angle (can be positive)&lt;br /&gt;
   --roc=fpm                    Specify initial climb rate (can be negative)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Rendering Options ====&lt;br /&gt;
   --bpp=depth                  Specify the bits per pixel&lt;br /&gt;
   --fog-disable                Disable fog/haze&lt;br /&gt;
   --fog-fastest                Enable fastest fog/haze&lt;br /&gt;
   --fog-nicest                 Enable nicest fog/haze&lt;br /&gt;
   --disable-horizon-effect     Disable celestial body growth illusion near the&lt;br /&gt;
                                horizon&lt;br /&gt;
   --enable-horizon-effect      Enable celestial body growth illusion near the&lt;br /&gt;
                                horizon&lt;br /&gt;
   --disable-enhanced-lighting  Disable enhanced runway lighting&lt;br /&gt;
   --enable-enhanced-lighting   Enable enhanced runway lighting&lt;br /&gt;
&lt;br /&gt;
   --disable-distance-attenuation&lt;br /&gt;
                                Disable runway light distance attenuation&lt;br /&gt;
&lt;br /&gt;
   --enable-distance-attenuation&lt;br /&gt;
                                Enable runway light distance attenuation&lt;br /&gt;
&lt;br /&gt;
   --disable-specular-highlight&lt;br /&gt;
                                Disable specular reflections on textured&lt;br /&gt;
                                objects&lt;br /&gt;
   --enable-specular-highlight  Enable specular reflections on textured objects&lt;br /&gt;
   --enable-clouds              Enable 2D (flat) cloud layers&lt;br /&gt;
   --disable-clouds             Disable 2D (flat) cloud layers&lt;br /&gt;
   --enable-clouds3d            Enable 3D (volumetric) cloud layers&lt;br /&gt;
   --disable-clouds3d           Disable 3D (volumetric) cloud layers&lt;br /&gt;
   --fov=degrees                Specify field of view angle&lt;br /&gt;
   --disable-fullscreen         Disable fullscreen mode&lt;br /&gt;
   --enable-fullscreen          Enable fullscreen mode&lt;br /&gt;
   --shading-flat               Enable flat shading&lt;br /&gt;
   --shading-smooth             Enable smooth shading&lt;br /&gt;
   --disable-skyblend           Disable sky blending&lt;br /&gt;
   --enable-skyblend            Enable sky blending&lt;br /&gt;
   --disable-textures           Disable textures&lt;br /&gt;
   --enable-textures            Enable textures&lt;br /&gt;
   --disable-wireframe          Disable wireframe drawing mode&lt;br /&gt;
   --enable-wireframe           Enable wireframe drawing mode&lt;br /&gt;
   --geometry=WxH               Specify window geometry (640x480, etc)&lt;br /&gt;
   --view-offset=value          Specify the default forward view direction as&lt;br /&gt;
                                an offset from straight ahead. Allowable values&lt;br /&gt;
                                are LEFT, RIGHT, CENTER, or a specific number&lt;br /&gt;
                                in degrees&lt;br /&gt;
   --visibility=meters          Specify initial visibility&lt;br /&gt;
   --visibility-miles=miles     Specify initial visibility in miles&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Hud Options ====&lt;br /&gt;
   --hud-tris                   Hud displays number of triangles rendered&lt;br /&gt;
   --hud-culled                 Hud displays percentage of triangles culled&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Time Options ====&lt;br /&gt;
&lt;br /&gt;
   --timeofday={dawn,noon,dusk,midnight}&lt;br /&gt;
                                Specify a time of day&lt;br /&gt;
   --time-offset=[+-]hh:mm:ss   Add this time offset&lt;br /&gt;
   --time-match-real            Synchronize time with real-world time&lt;br /&gt;
   --time-match-local           Synchronize time with local real-world time&lt;br /&gt;
&lt;br /&gt;
   --start-date-sys=yyyy:mm:dd:hh:mm:ss&lt;br /&gt;
                                Specify a starting date/time with respect to&lt;br /&gt;
                                system time&lt;br /&gt;
&lt;br /&gt;
   --start-date-gmt=yyyy:mm:dd:hh:mm:ss&lt;br /&gt;
                                Specify a starting date/time with respect to&lt;br /&gt;
                                Greenwich Mean Time&lt;br /&gt;
&lt;br /&gt;
   --start-date-lat=yyyy:mm:dd:hh:mm:ss&lt;br /&gt;
                                Specify a starting date/time with respect to&lt;br /&gt;
                                Local Aircraft Time&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Network Options ====&lt;br /&gt;
   --httpd=port                 Enable http server on the specified port&lt;br /&gt;
   --telnet=port                Enable telnet server on the specified port&lt;br /&gt;
   --jpg-httpd=port             Enable screen shot http server on the specified&lt;br /&gt;
                                port&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== MultiPlayer Options ====&lt;br /&gt;
   --callsign                   assign a unique name to a player&lt;br /&gt;
&lt;br /&gt;
   --multiplay={in|out},hz,address,port&lt;br /&gt;
                                Specify multipilot communication settings&lt;br /&gt;
                                multiple instances can be used&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Route/Way Point Options ====&lt;br /&gt;
   --wp=ID[@alt]                Specify a waypoint for the GC autopilot;&lt;br /&gt;
                                multiple instances can be used&lt;br /&gt;
   --flight-plan=file           Read all waypoints from a file&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== IO Options ==== &lt;br /&gt;
   --generic=params             Open connection using a predefined&lt;br /&gt;
                                communication interface and a preselected&lt;br /&gt;
                                communication protocol&lt;br /&gt;
   --garmin=params              Open connection using the Garmin GPS protocol&lt;br /&gt;
   --joyclient=params           Open connection to an Agwagon joystick&lt;br /&gt;
   --jsclient=params            Open connection to a remote joystick&lt;br /&gt;
   --native-ctrls=params        Open connection using the FG Native Controls&lt;br /&gt;
                                protocol&lt;br /&gt;
   --native-fdm=params          Open connection using the FG Native FDM&lt;br /&gt;
                                protocol&lt;br /&gt;
   --native=params              Open connection using the FG Native protocol&lt;br /&gt;
   --nmea=params                Open connection using the NMEA protocol&lt;br /&gt;
   --opengc=params              Open connection using the OpenGC protocol&lt;br /&gt;
   --props=params               Open connection using the interactive property&lt;br /&gt;
                                manager&lt;br /&gt;
   --pve=params                 Open connection using the PVE protocol&lt;br /&gt;
   --ray=params                 Open connection using the Ray Woodworth motion&lt;br /&gt;
                                chair protocol&lt;br /&gt;
   --rul=params                 Open connection using the RUL protocol&lt;br /&gt;
   --atc610x                    Enable atc610x interface&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Avionics Options ====&lt;br /&gt;
   --nav1=[radial:]frequency    Set the NAV1 radio frequency, optionally&lt;br /&gt;
                                preceded by a radial.&lt;br /&gt;
   --nav2=[radial:]frequency    Set the NAV2 radio frequency, optionally&lt;br /&gt;
                                preceded by a radial.&lt;br /&gt;
   --adf=[rotation:]frequency   Set the ADF radio frequency, optionally&lt;br /&gt;
                                preceded by a card rotation.&lt;br /&gt;
   --dme={nav1|nav2|frequency}  Slave the ADF to one of the NAV radios, or set&lt;br /&gt;
                                its internal frequency.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Situation Options ====&lt;br /&gt;
&lt;br /&gt;
   --failure={pitot|static|system|vacuum}&lt;br /&gt;
                                Fail the pitot, static, vacuum, or electrical&lt;br /&gt;
                                system (repeat the option for multiple system&lt;br /&gt;
                                failures).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==== Debugging Options ====&lt;br /&gt;
&lt;br /&gt;
   --log-level={bulk,debug,info,warn,alert}&lt;br /&gt;
                                Set the logging level for this session.&lt;br /&gt;
                                0=verbose, 5=alerts only&lt;br /&gt;
   --trace-read=property        Trace the reads for a property;&lt;br /&gt;
                                multiple instances can be used&lt;br /&gt;
   --trace-write=property       Trace the writes for a property;&lt;br /&gt;
                                multiple instances can be used&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Howto:Aerial_refueling&amp;diff=2668</id>
		<title>Howto:Aerial refueling</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Howto:Aerial_refueling&amp;diff=2668"/>
		<updated>2006-07-11T16:05:51Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: Reverted edits by 219.240.12.173 (Talk); changed back to last version by 88.106.42.243&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== What's possible ==&lt;br /&gt;
&lt;br /&gt;
At present, there are two tanker aircraft (KC135-E and KA6-D) and three receiving aircraft (A4F, Lightning and T38) capable of in-air refuelling.  When flying one of these aircraft in the default scenery area, one can locate the tanker aircraft using air-air TACAN and/or radar and then receive a full or partial load of fuel by flying in close formation behind the tanker.  Refuelling is also possible between aircraft in a MultiPlayer session. The KC135 is a boom refueller, while the KA6 has a hose. The A4F and Lightning are both fitted with a probe for hose refuelling while the T38 is fitted with a boom receiver. At the moment, either type can refuel from any tanker, but in the future it is likely that the correct type will have to be used.&lt;br /&gt;
&lt;br /&gt;
== Necessary preparations ==&lt;br /&gt;
&lt;br /&gt;
Like the aircraft carriers, AAR is implemented as an &amp;quot;AI scenario&amp;quot;.  Selecting these normally requires editing the &amp;quot;preferences.xml&amp;quot; file in the flightgear data directory.&lt;br /&gt;
&lt;br /&gt;
There is a shortcut in this case though; simply selecting the Lightning, A4F or T38 should automatically load a scenario containing a tanker, assuming you haven't changed anything in your preferences.xml file.&lt;br /&gt;
&lt;br /&gt;
Assuming this is the case, choose one of the aforementioned aircraft, make sure that &amp;quot;AI models&amp;quot; are enabled and start at KSFO (the default airport.)&lt;br /&gt;
&lt;br /&gt;
Depending on the scenario, you might see the tanker crossing overhead when the sim starts; if not, don't worry.&lt;br /&gt;
&lt;br /&gt;
== In the cockpit ==&lt;br /&gt;
&lt;br /&gt;
Perhaps the first thing to do after starting the engines if necessary is to select the appropriate TACAN channel if your aircraft is so equipped (the A4F and Lightning both are).  For the KC135 (by default used by the Lightning and T37) this is currently &amp;quot;040X&amp;quot;, and for the KA6D (used by the A4F) it is &amp;quot;050X&amp;quot;.  Enter this channel using the relevant dropdown boxes in the &amp;quot;radios&amp;quot; dialogue (from the menus, &amp;quot;equipment/radios&amp;quot; or press control-r).&lt;br /&gt;
&lt;br /&gt;
You should now see the current bearing to the tanker indicated in the nav display of the A4 or the TACAN indicator (green needle) in the Lightning.  If the tanker is within range, it will also appear on the radar display of the T38 or Lightning.  Take off...&lt;br /&gt;
&lt;br /&gt;
== In the Air ==&lt;br /&gt;
&lt;br /&gt;
Turn to an appropriate heading, guided by the TACAN bearing (you should try a &amp;quot;leading&amp;quot; approach to close in on the tanker) and look for the tanker on the radar or nav. screen.  Around 5nm away, you should reduce your speed to around 20kts faster than the tanker (these fly at 280 kts TAS) - a &amp;quot;slow overtake&amp;quot;.  The KC135 will be visible from about 10nm, the KA6-D, being smaller, just over 1 nm.  You should use airbrakes as necessary to keep control of your speed should you find yourself overshooting.&lt;br /&gt;
&lt;br /&gt;
Close to within 50ft of the tanker (don't get too close, or visual artifacts might hide the boom from view).  You should see indication in the cockpit that you are receiving fuel - there is a green light in the A4 fuel gauge, and you should see the indicated tank load increase.&lt;br /&gt;
&lt;br /&gt;
Getting to this stage is not necessarily easy - it can take a lot of practice.  As with carrier landings, this is not an easy manoeuver in real life either and there are additional complications in the sim; the tanker, being an AI model, is unaffected by the wind and flies TAS (True Air Speed), while you are flying IAS (Indicated Air Speed) and are affected by the environment.  As in real life, your aircraft will also steadily increase in weight as the tanks fill which will affect the trim of the aircraft. (You might find it helpful to use the autothrottle to help control your speed - ctrl-s then Page Up/Down to increase and decrease the set speed.)&lt;br /&gt;
&lt;br /&gt;
Once your tanks are full, or you have taken as much fuel as you wish, close the throttle a little, back away from the tanker and continue your intended flight.&lt;br /&gt;
&lt;br /&gt;
== More advanced topics ==&lt;br /&gt;
&lt;br /&gt;
=== Multiplayer Refuelling ===&lt;br /&gt;
&lt;br /&gt;
Refuelling is possible within a MultiPlayer session given certain conditions.  A basic flyable KC135 model is available - the pilot of this aircraft should use the callsign &amp;quot;MOBIL1&amp;quot;, &amp;quot;MOBIL2&amp;quot; or &amp;quot;MOBIL3&amp;quot;.  Other numbers are acceptable, but only these three have A-A TACAN channels assigned.  These are 060X, 061X and 062X respectively.&lt;br /&gt;
&lt;br /&gt;
If the receiving aircraft uses a YASim FDM, there are no further complications.  Should the receiving aircraft be JSBSim based, the user must make sure that there are no AI tankers in their configuration.  This means disabling (commenting out) all refuelling &amp;quot;scenarios&amp;quot; in the relevant aircraft-set.xml and in preferences.xml.&lt;br /&gt;
&lt;br /&gt;
MP refuelling works in exactly the same way as AI refuelling and is a fun challenge.  It is best to ensure that your network connection is as free from interruptions as possible; the MP code does a degree of prediction if there is a &amp;quot;blip&amp;quot; in the stream of packets and this can make close formation flight very difficult or even impossible.&lt;br /&gt;
&lt;br /&gt;
=== Selecting Different Scenarios ===&lt;br /&gt;
&lt;br /&gt;
There are several AAR scenarios available in the AI directory.  refueling_demo.xml has a KC135 circling near KSFO at 3000ft; refueling_demo_1.xml the KC135 on a North/South towline at 8000ft and refueling_demo_2.xml the KA6D on a similar N/S path but at 8500ft.&lt;br /&gt;
&lt;br /&gt;
These can be selected by several methods; using the --ai-scenario command line option, or by editing preferences.xml.&lt;br /&gt;
&lt;br /&gt;
==== Command line method ====&lt;br /&gt;
&lt;br /&gt;
Add the --ai-scenario option to your usual flightgear command line; e.g. &amp;lt;code&amp;gt;fgfs --aircraft=lightning --ai-scenario=refueling_demo_2&amp;lt;/code&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==== Preferences.xml method ====&lt;br /&gt;
Use your operating system's search facility to locate this if you don't know where it is).  Open preferences.xml in a text editor (e.g. notepad if on windows) and search for the &amp;lt;ai&amp;gt; &amp;lt;/ai&amp;gt; tags.  Place a line like &amp;lt;code&amp;gt;&amp;lt;scenario&amp;gt;refueling_demo&amp;lt;/scenario&amp;gt;&amp;lt;/code&amp;gt; somewhere within the &amp;lt;ai&amp;gt; tags; you should see other scenarios already there too, perhaps commented out : i.e. with &amp;lt;! --  --&amp;gt;&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=AI_Systems&amp;diff=2618</id>
		<title>AI Systems</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=AI_Systems&amp;diff=2618"/>
		<updated>2006-06-27T05:46:20Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: /* Using Interpolation Tables */  add degree symbol&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== ATC ==&lt;br /&gt;
&lt;br /&gt;
FlightGear has a simple Air Traffic Control system.&lt;br /&gt;
&lt;br /&gt;
For airports with a tower frequency, if that frequency is tuned in to your radio, you may contact ATC.&lt;br /&gt;
&lt;br /&gt;
To obtain the tower frequencies for an airport within range of ATC, go to the ATC/AI menu, choose Frequencies to display the dialog. If there are any airports within 40mn range, a button with the airport designation will appear. Click see the frequencies. Tune the tower frequency in on the COM1 radio and then hit the single quote key to open the ATC window.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Points:&lt;br /&gt;
&lt;br /&gt;
* Untowered airports are not supported in any way by ATC.&lt;br /&gt;
* You must be within 40 nautical miles of an ATC facility (towered airport with tower frequencies) to contact ATC.&lt;br /&gt;
&lt;br /&gt;
== AI Air Traffic ==&lt;br /&gt;
&lt;br /&gt;
Todo&lt;br /&gt;
&lt;br /&gt;
== AI Models ==&lt;br /&gt;
&lt;br /&gt;
Starting with FlightGear version 0.9.4 you can place AI objects in the &amp;quot;FlightGear world&amp;quot;. In version 0.9.4 the AI objects can be defined in the preferences.xml file, or in an airplane's *-set.xml file. In later versions they are defined in a &amp;quot;scenario file&amp;quot; only. The types of AI objects you can have are airplanes, ships, thunderstorms, thermals and ballistic objects. AI objects have some things in common: The have a location in the &amp;quot;FlightGear world&amp;quot;, they can have an associated exterior 3D model, and they can move according to an internal FDM (flight dynamics model). As of now, these objects are created at simulator start-up by adding some XML code to a scenario file. The scenario file must be in the data/AI directory. You select which scenario files you want to use by naming it in the preferences.xml file. The preferences.xml file has an entry that looks like this (FlightGear versions newer than 0.9.4, including CVS): &lt;br /&gt;
&lt;br /&gt;
 &amp;lt;AI&amp;gt;&lt;br /&gt;
  &amp;lt;ENABLED type=&amp;quot;bool&amp;quot;&amp;gt;true&amp;lt;/ENABLED&amp;gt;&lt;br /&gt;
  &amp;lt;SCENARIO&amp;gt;aircraft_demo&amp;lt;/SCENARIO&amp;gt;&lt;br /&gt;
 &amp;lt;/AI&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The above bit of XML enables the AI system and selects a scenario file called aircraft_demo.xml.&lt;br /&gt;
 &lt;br /&gt;
&lt;br /&gt;
The scenario file contains one entry for each AI object. The entry specifies what kind of object to create, what its initial conditions will be, and optionally (for aircraft and ships) a flight plan. The entry for a sailboat could look like this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;ship&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Models/Geometry/sailboat.xml&amp;lt;/MODEL&amp;gt; &lt;br /&gt;
  &amp;lt;SPEED-KTAS type=&amp;quot;double&amp;quot;&amp;gt;12.0&amp;lt;/SPEED-KTAS&amp;gt; &lt;br /&gt;
  &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;0.0&amp;lt;/ALTITUDE-FT&amp;gt;    &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.33333&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.61667&amp;lt;/LATITUDE&amp;gt;&lt;br /&gt;
  &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;20.0&amp;lt;/HEADING&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Most of the parameters are self-explanitory. The &amp;quot;type&amp;quot; of object can be one of &amp;quot;aircraft&amp;quot;, &amp;quot;ship&amp;quot;, &amp;quot;storm&amp;quot;, &amp;quot;thermal&amp;quot;, &amp;quot;ballistic&amp;quot; or &amp;quot;static&amp;quot;. The rest of the items give the AI object a model, a starting location, and a starting speed and direction. You use the &amp;lt;MODEL&amp;gt; item to give the object any valid exterior model. You can even make the ship look like an airplane if you want! The &amp;quot;ship&amp;quot; type can also have a &amp;lt;RUDDER&amp;gt; value specified, which will cause the ship to move in a circle (HINT: use small values, five degrees or less, and right rudder is positive). Here is an example of how to create an aircraft AI object:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;!-- puts an A-4 north of KSFO, orbiting at 7000 ft --&amp;gt;  &lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;aircraft&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
  &amp;lt;CLASS&amp;gt;light&amp;lt;/CLASS&amp;gt; &lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Aircraft/a4/Models/a4-blue.xml&amp;lt;/MODEL&amp;gt; &lt;br /&gt;
  &amp;lt;SPEED-KTAStype=&amp;quot;double&amp;quot;&amp;gt;320.0&amp;lt;/SPEED-KTAS&amp;gt; &lt;br /&gt;
  &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;7000.0&amp;lt;/ALTITUDE-FT&amp;gt; &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.6&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.9&amp;lt;/LATITUDE&amp;gt;&lt;br /&gt;
  &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;210.0&amp;lt;/HEADING&amp;gt; &lt;br /&gt;
  &amp;lt;BANK type=&amp;quot;double&amp;quot;&amp;gt;-15.0&amp;lt;/BANK&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
&lt;br /&gt;
It looks much the same as the ship AI code. There are two differences, the &amp;lt;CLASS&amp;gt; item and the &amp;lt;BANK&amp;gt; item. If the class is set to &amp;quot;tanker&amp;quot; the airplane will allow you to refuel if you can get close behind it.  The bank is of course similar to the ship's rudder. In the above example the A-4 will be orbiting to the left at 15 degrees of bank. You can also create a ship or airplane with a flight plan. In this case the object will follow the flight plan, and then delete itself when it reaches the end. The flight plans are kept in data/Data/AI/FlightPlans. To create an airplane with a flightplan do this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;aircraft&amp;lt;/TYPE&amp;gt; &lt;br /&gt;
  &amp;lt;CLASS&amp;gt;jet-transport&amp;lt;/CLASS&amp;gt;&lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Aircraft/737/Models/737.xml&amp;lt;/MODEL&amp;gt;&lt;br /&gt;
  &amp;lt;FLIGHTPLAN&amp;gt;KSFO_ILS28L.xml&amp;lt;/FLIGHTPLAN&amp;gt; &lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
To make a thunderstorm, use this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;!-- puts a thunderstorm overhead OSI (Woodside VOR) --&amp;gt;&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
   &amp;lt;TYPE&amp;gt;storm&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
   &amp;lt;MODEL&amp;gt;Models/Geometry/thunderstorm.xml&amp;lt;/MODEL&amp;gt; &lt;br /&gt;
   &amp;lt;SPEED-KTAS type=&amp;quot;double&amp;quot;&amp;gt;20.0&amp;lt;/SPEED-KTAS&amp;gt; &lt;br /&gt;
   &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;4000.0&amp;lt;/ALTITUDE-FT&amp;gt;&lt;br /&gt;
   &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.3917&amp;lt;/LATITUDE&amp;gt; &lt;br /&gt;
   &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.2817&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
   &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;90&amp;lt;/HEADING&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
There's not much to it. No, they don't turn :) To create a thermal, use this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;thermal&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.61633&amp;lt;/LATITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.38334&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;STRENGTH-FPS type=&amp;quot;double&amp;quot;&amp;gt;8.33&amp;lt;/STRENGTH-FPS&amp;gt; &lt;br /&gt;
  &amp;lt;DIAMETER-FT type=&amp;quot;double&amp;quot;&amp;gt;4000&amp;lt;/DIAMETER-FT&amp;gt; &lt;br /&gt;
  &amp;lt;HEIGHT-MSL&amp;gt;6000&amp;lt;/HEIGHT-MSL&amp;gt;&lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Models/Geometry/thermalcap.xml&amp;lt;/MODEL&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The AI thermals don't move, they are invisible, and they don't &amp;quot;lean&amp;quot; downwind. The &amp;lt;STRENGTH-FPS&amp;gt; defines the maximum vertical velocity of the airmass at the center of the thermal. The strength decreases to zero at the thermal's edge.  A&lt;br /&gt;
model can be assigned to the thermal, and usually this will be a small cloud to mark the thermal's location.  To create a sink, just give a &amp;quot;thermal&amp;quot; a negative strength, and give it a null model.  Please see the demo scenario (thermal_demo.xml) for examples.  &lt;br /&gt;
&lt;br /&gt;
A ballistic AI object starts with an initial azimuth, elevation and speed, then follows a ballistic path from there (with air resistance included). Try this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;ballistic&amp;lt;/TYPE&amp;gt; &lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Models/Geometry/rocket.xml&amp;lt;/MODEL&amp;gt;&lt;br /&gt;
  &amp;lt;SPEED-FPS type=&amp;quot;double&amp;quot;&amp;gt;500.0&amp;lt;/SPEED-FPS&amp;gt; &lt;br /&gt;
  &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;50.0&amp;lt;/ALTITUDE-FT&amp;gt; &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.39&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.62&amp;lt;/LATITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;200.0&amp;lt;/HEADING&amp;gt;&lt;br /&gt;
  &amp;lt;AZIMUTH type=&amp;quot;double&amp;quot;&amp;gt;70.0&amp;lt;/AZIMUTH&amp;gt; &lt;br /&gt;
  &amp;lt;ELEVATION type=&amp;quot;double&amp;quot;&amp;gt;45.0&amp;lt;/ELEVATION&amp;gt; &lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The AI storm objects can be displayed on weather radar. See the Aircraft/Instruments/wxradar.xml file for details. The AI aircraft objects can be displayed on radar. See the Aircraft/Instruments/radar.xml file for details, or fly the T-38 for a demo.&lt;br /&gt;
&lt;br /&gt;
=== Using Interpolation Tables ===&lt;br /&gt;
&lt;br /&gt;
Interpolation tables are very handy for effecting animations that are non-linear in relation to the property they are referenced to.&lt;br /&gt;
&lt;br /&gt;
They save the use of factors, offsets and min/max values.&lt;br /&gt;
&lt;br /&gt;
For example; relating flap extension to airspeed of an AI model. Typically an aircraft will extend flaps on final approach to control Indicated Airspeed (IAS) and stall speed to affect a low speed controlled landing. Upon touchdown the extra lift efficiency introduced by the flaps is no longer required or desirable, hence the flaps will be retracted ASAP after touch down. &lt;br /&gt;
&lt;br /&gt;
This is relatively simple in a sim aircraft as the /surface-positions/flap-pos-norm property is a normalised indicator of the flap setting chosen by the pilot.&lt;br /&gt;
&lt;br /&gt;
AI aircraft have no pilots to control flaps nor does the flight plan &amp;lt;flaps-down&amp;gt;true/false&amp;lt;/flaps-down&amp;gt; parameter effect the /AI property tree parameter, a relationship to the IAS is the next best choice.&lt;br /&gt;
&lt;br /&gt;
To effect this relationship (IAS/flap-position) using factors/offsets and min/max would be quite difficult and non-intuitive. Using interpolation tables allows the following scenario to be setup very easily and intuitively:&lt;br /&gt;
&lt;br /&gt;
: '''C172P'''&lt;br /&gt;
{| border=&amp;quot;1&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| Max&lt;br /&gt;
| 123 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Cruise&lt;br /&gt;
| 90 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Stall (no flaps)&lt;br /&gt;
| 50 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Flaps&lt;br /&gt;
| 0, 10, 20, 30 deg.&lt;br /&gt;
|-&lt;br /&gt;
| Approach&lt;br /&gt;
| 90 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| 10° flaps&lt;br /&gt;
| 90 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| 20° flaps&lt;br /&gt;
| 70 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| 30° flaps&lt;br /&gt;
| 60 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Flare &amp;amp; touch down&lt;br /&gt;
| 50 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Brake&lt;br /&gt;
| 45 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Retract flaps&lt;br /&gt;
| 45 KIAS&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
'''Table IAS/flap extension'''&lt;br /&gt;
{| border=&amp;quot;2&amp;quot;&lt;br /&gt;
|+&lt;br /&gt;
| IAS (kt) || Flaps&lt;br /&gt;
|-&lt;br /&gt;
| 90&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 70 - 89&lt;br /&gt;
| 10&lt;br /&gt;
|-&lt;br /&gt;
| 60-69&lt;br /&gt;
| 20&lt;br /&gt;
|-&lt;br /&gt;
| 45-59&lt;br /&gt;
| 30&lt;br /&gt;
|-&lt;br /&gt;
| &amp;lt; 45&lt;br /&gt;
| 0&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
When the pilot extends the flaps &amp;quot;one notch&amp;quot; they will extend to &amp;quot;10°&amp;quot; etc. In the property tree, these 4 steps will typically be normalised to 0.00, 0.33, 0.66, 1.00.  This will differ from aircraft to aircraft. If the aircraft does not have equal extensions for each &amp;quot;notch&amp;quot; of flaps, the values observed may be; 0.00, 0.10, 0.30, 0.66, 1.00. Modeling this non-linear extension using &amp;quot;factor, offset, min/max&amp;quot; would be extremely difficult if not impossible. Modeling it using interpolation tables is very easy, as you shall see.&lt;br /&gt;
&lt;br /&gt;
For sim animations, the actual physical rotation of the control surface in the real world needs to be researched; this may reveal a linear or non-linear relationship between &amp;quot;nominal flap extension indicator&amp;quot; and physical rotation of the surface. That is, &amp;quot;10 degrees of flap&amp;quot; might only involve rotating the flap surface 5 degrees around its axis in the wing structure. In our 0,10,20,30 scenarios, assuming a linear relationship, 30 degrees of flap would result in the flap being rotated 15 degrees around its wing axis. Therefore the normalised /surface-positions/flap-pos-norm property would have a factor of 15 applied to the rotate animation&lt;br /&gt;
&lt;br /&gt;
The way to change a linear relationship that uses &amp;quot;factor, offset, min/max&amp;quot; in the sim animation to a interpolation table in the AI animation is best understood by examining how &amp;quot;factor, offset, min/max&amp;quot; approach works:&lt;br /&gt;
&lt;br /&gt;
# Take normalised value of the flaps (0=retracted, 1=extended)&lt;br /&gt;
# Apply the factor.&lt;br /&gt;
# Apply the offset&lt;br /&gt;
# Apply the min/max values&lt;br /&gt;
&lt;br /&gt;
e.g.&lt;br /&gt;
 factor=60&lt;br /&gt;
 offset= -30&lt;br /&gt;
 min=-10&lt;br /&gt;
 max+10&lt;br /&gt;
&lt;br /&gt;
these figures are nonsense but are used to illustrate a point:&lt;br /&gt;
&lt;br /&gt;
 flaps retracted(0°) = 0 x 60 = 0, (offset=-30) = -30, (min= -10) = -10&lt;br /&gt;
 flaps extended(10°) = 0.33 x 60 = 20, (offset=-30) = -10, (min= -10) = -10&lt;br /&gt;
 flaps extended(20°) = 0.66 x 60 = 40, (offset=-30) = 10, (min= -10/max=10) = 10&lt;br /&gt;
 flaps extended(30°) = 1.00 x 60 = 60, (offset=-30) = 30, (max=10) = 10&lt;br /&gt;
&lt;br /&gt;
more realistically, offset and min max are not used for flaps, only a factor.&lt;br /&gt;
&lt;br /&gt;
say 27°, this represents the maximum rotation of the 3-D component in the model around its defined axis.&lt;br /&gt;
&lt;br /&gt;
 flaps retracted(0°) = 0 x 27 = 0&lt;br /&gt;
 flaps extended(10°) = 0.33 x 27 = 9&lt;br /&gt;
 flaps extended(20°) = 0.66 x 27 = 18&lt;br /&gt;
 flaps extended(30°) = 1.00 x 27 = 27&lt;br /&gt;
&lt;br /&gt;
from this it can be seen that the 3-D object will be rotated 0°, 9°, 18° &amp;amp; 27° to represent the 0°, 10°, 20° &amp;amp; 30° deployment of the flaps.&lt;br /&gt;
&lt;br /&gt;
Relating this back to the speeds above:&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot;&lt;br /&gt;
|+&lt;br /&gt;
| IAS (kt)&lt;br /&gt;
| &amp;lt;rotate&amp;gt; value&lt;br /&gt;
|-&lt;br /&gt;
| 0&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 44&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 45&lt;br /&gt;
| 27&lt;br /&gt;
|-&lt;br /&gt;
| 59&lt;br /&gt;
| 27&lt;br /&gt;
|-&lt;br /&gt;
| 60&lt;br /&gt;
| 18&lt;br /&gt;
|-&lt;br /&gt;
| 69&lt;br /&gt;
| 18&lt;br /&gt;
|-&lt;br /&gt;
| 70&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 89&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 90&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 100&lt;br /&gt;
| 0&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
this gives a stepped effect, where the movement is limited to 1knt of airspeed. That is the 3-D object will linearly move from 9° to 18° while the aircraft looses speed from 70 knots to 69 knots. This behaviour will make the need for an upper and lower limit of a stepped value obvious.&lt;br /&gt;
&lt;br /&gt;
a simplified table of:&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot;&lt;br /&gt;
|+&lt;br /&gt;
| IAS (kt)&lt;br /&gt;
| &amp;lt;rotate&amp;gt; value&lt;br /&gt;
|-&lt;br /&gt;
| 0&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 45&lt;br /&gt;
| 27&lt;br /&gt;
|-&lt;br /&gt;
| 60&lt;br /&gt;
| 18&lt;br /&gt;
|-&lt;br /&gt;
| 70&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 90&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 100&lt;br /&gt;
| 0&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
will cause the flaps to start extending at the rate of 1/45 x 27 degrees per knot of airspeed gained until 45 knots when the rate of change will adjust to the new gradient. This is not how flaps behave, but can be used to good effect with &amp;quot;tail dragger&amp;quot; animations where at a certain IAS the tail starts rising, maybe at an increasing rate, until flying attitude is reached when it stops rising any further. The tail rising is not a stepped function of IAS.&lt;br /&gt;
&lt;br /&gt;
Now we have the basic ideas behind interpolation tables, the question is how are they implemented…answer;…easy ….an example of the stepped flaps animation  above&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;interpolation&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;0.000&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;44.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;45.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;27.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;59.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;27.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;59.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;27.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;60.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;18.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;69.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;18.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;70.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;9.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;89.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;9.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;90.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;100.0&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
 &amp;lt;/interpolation&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Here endth Interpolation tables 101&lt;br /&gt;
:-Dene&lt;br /&gt;
&lt;br /&gt;
== Submodels ==&lt;br /&gt;
&lt;br /&gt;
Submodels are AI ballistic objects that emanate from, fall from, or launch from the user aircraft.  They are presently used to model smoke, contrails, flares, tracers, bombs, drop tanks and flight path markers. &lt;br /&gt;
&lt;br /&gt;
Submodels are controlled by the submodel manager.  The manager reads a submodel configuration file at the start of the sim session.  This configuration file is written by the aircraft author and defines all the submodels for that particular aircraft.&lt;br /&gt;
&lt;br /&gt;
As an example examine the submodels file in the Aircraft/737-300 directory.  This file creates two submodels which will become the airplane's left and right engine contrails.  Each contrail needs its own submodel definition because the contrails begin at different locations.  Each contrail consists of a train of individual &amp;quot;puff&amp;quot; models that are released in rapid succession as long as the &amp;quot;trigger&amp;quot; property is true.  We ensure an unlimited supply of puffs by setting the &amp;quot;count&amp;quot; parameter to -1. The individual puffs, being AIBallistic objects, will follow their own ballistic paths once released.  In this case we have used the &amp;quot;bouyancy&amp;quot; parameter to negate gravity in the ballistic path.  The puffs have been given a life span of eight seconds.  At cruising speed the 737 will thus have about 400 puffs behind it at any moment.&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=AI_Systems&amp;diff=2617</id>
		<title>AI Systems</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=AI_Systems&amp;diff=2617"/>
		<updated>2006-06-27T05:41:57Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: /* Using Interpolation Tables */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== ATC ==&lt;br /&gt;
&lt;br /&gt;
FlightGear has a simple Air Traffic Control system.&lt;br /&gt;
&lt;br /&gt;
For airports with a tower frequency, if that frequency is tuned in to your radio, you may contact ATC.&lt;br /&gt;
&lt;br /&gt;
To obtain the tower frequencies for an airport within range of ATC, go to the ATC/AI menu, choose Frequencies to display the dialog. If there are any airports within 40mn range, a button with the airport designation will appear. Click see the frequencies. Tune the tower frequency in on the COM1 radio and then hit the single quote key to open the ATC window.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Points:&lt;br /&gt;
&lt;br /&gt;
* Untowered airports are not supported in any way by ATC.&lt;br /&gt;
* You must be within 40 nautical miles of an ATC facility (towered airport with tower frequencies) to contact ATC.&lt;br /&gt;
&lt;br /&gt;
== AI Air Traffic ==&lt;br /&gt;
&lt;br /&gt;
Todo&lt;br /&gt;
&lt;br /&gt;
== AI Models ==&lt;br /&gt;
&lt;br /&gt;
Starting with FlightGear version 0.9.4 you can place AI objects in the &amp;quot;FlightGear world&amp;quot;. In version 0.9.4 the AI objects can be defined in the preferences.xml file, or in an airplane's *-set.xml file. In later versions they are defined in a &amp;quot;scenario file&amp;quot; only. The types of AI objects you can have are airplanes, ships, thunderstorms, thermals and ballistic objects. AI objects have some things in common: The have a location in the &amp;quot;FlightGear world&amp;quot;, they can have an associated exterior 3D model, and they can move according to an internal FDM (flight dynamics model). As of now, these objects are created at simulator start-up by adding some XML code to a scenario file. The scenario file must be in the data/AI directory. You select which scenario files you want to use by naming it in the preferences.xml file. The preferences.xml file has an entry that looks like this (FlightGear versions newer than 0.9.4, including CVS): &lt;br /&gt;
&lt;br /&gt;
 &amp;lt;AI&amp;gt;&lt;br /&gt;
  &amp;lt;ENABLED type=&amp;quot;bool&amp;quot;&amp;gt;true&amp;lt;/ENABLED&amp;gt;&lt;br /&gt;
  &amp;lt;SCENARIO&amp;gt;aircraft_demo&amp;lt;/SCENARIO&amp;gt;&lt;br /&gt;
 &amp;lt;/AI&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The above bit of XML enables the AI system and selects a scenario file called aircraft_demo.xml.&lt;br /&gt;
 &lt;br /&gt;
&lt;br /&gt;
The scenario file contains one entry for each AI object. The entry specifies what kind of object to create, what its initial conditions will be, and optionally (for aircraft and ships) a flight plan. The entry for a sailboat could look like this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;ship&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Models/Geometry/sailboat.xml&amp;lt;/MODEL&amp;gt; &lt;br /&gt;
  &amp;lt;SPEED-KTAS type=&amp;quot;double&amp;quot;&amp;gt;12.0&amp;lt;/SPEED-KTAS&amp;gt; &lt;br /&gt;
  &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;0.0&amp;lt;/ALTITUDE-FT&amp;gt;    &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.33333&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.61667&amp;lt;/LATITUDE&amp;gt;&lt;br /&gt;
  &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;20.0&amp;lt;/HEADING&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Most of the parameters are self-explanitory. The &amp;quot;type&amp;quot; of object can be one of &amp;quot;aircraft&amp;quot;, &amp;quot;ship&amp;quot;, &amp;quot;storm&amp;quot;, &amp;quot;thermal&amp;quot;, &amp;quot;ballistic&amp;quot; or &amp;quot;static&amp;quot;. The rest of the items give the AI object a model, a starting location, and a starting speed and direction. You use the &amp;lt;MODEL&amp;gt; item to give the object any valid exterior model. You can even make the ship look like an airplane if you want! The &amp;quot;ship&amp;quot; type can also have a &amp;lt;RUDDER&amp;gt; value specified, which will cause the ship to move in a circle (HINT: use small values, five degrees or less, and right rudder is positive). Here is an example of how to create an aircraft AI object:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;!-- puts an A-4 north of KSFO, orbiting at 7000 ft --&amp;gt;  &lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;aircraft&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
  &amp;lt;CLASS&amp;gt;light&amp;lt;/CLASS&amp;gt; &lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Aircraft/a4/Models/a4-blue.xml&amp;lt;/MODEL&amp;gt; &lt;br /&gt;
  &amp;lt;SPEED-KTAStype=&amp;quot;double&amp;quot;&amp;gt;320.0&amp;lt;/SPEED-KTAS&amp;gt; &lt;br /&gt;
  &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;7000.0&amp;lt;/ALTITUDE-FT&amp;gt; &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.6&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.9&amp;lt;/LATITUDE&amp;gt;&lt;br /&gt;
  &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;210.0&amp;lt;/HEADING&amp;gt; &lt;br /&gt;
  &amp;lt;BANK type=&amp;quot;double&amp;quot;&amp;gt;-15.0&amp;lt;/BANK&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
&lt;br /&gt;
It looks much the same as the ship AI code. There are two differences, the &amp;lt;CLASS&amp;gt; item and the &amp;lt;BANK&amp;gt; item. If the class is set to &amp;quot;tanker&amp;quot; the airplane will allow you to refuel if you can get close behind it.  The bank is of course similar to the ship's rudder. In the above example the A-4 will be orbiting to the left at 15 degrees of bank. You can also create a ship or airplane with a flight plan. In this case the object will follow the flight plan, and then delete itself when it reaches the end. The flight plans are kept in data/Data/AI/FlightPlans. To create an airplane with a flightplan do this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;aircraft&amp;lt;/TYPE&amp;gt; &lt;br /&gt;
  &amp;lt;CLASS&amp;gt;jet-transport&amp;lt;/CLASS&amp;gt;&lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Aircraft/737/Models/737.xml&amp;lt;/MODEL&amp;gt;&lt;br /&gt;
  &amp;lt;FLIGHTPLAN&amp;gt;KSFO_ILS28L.xml&amp;lt;/FLIGHTPLAN&amp;gt; &lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
To make a thunderstorm, use this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;!-- puts a thunderstorm overhead OSI (Woodside VOR) --&amp;gt;&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
   &amp;lt;TYPE&amp;gt;storm&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
   &amp;lt;MODEL&amp;gt;Models/Geometry/thunderstorm.xml&amp;lt;/MODEL&amp;gt; &lt;br /&gt;
   &amp;lt;SPEED-KTAS type=&amp;quot;double&amp;quot;&amp;gt;20.0&amp;lt;/SPEED-KTAS&amp;gt; &lt;br /&gt;
   &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;4000.0&amp;lt;/ALTITUDE-FT&amp;gt;&lt;br /&gt;
   &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.3917&amp;lt;/LATITUDE&amp;gt; &lt;br /&gt;
   &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.2817&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
   &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;90&amp;lt;/HEADING&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
There's not much to it. No, they don't turn :) To create a thermal, use this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;thermal&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.61633&amp;lt;/LATITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.38334&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;STRENGTH-FPS type=&amp;quot;double&amp;quot;&amp;gt;8.33&amp;lt;/STRENGTH-FPS&amp;gt; &lt;br /&gt;
  &amp;lt;DIAMETER-FT type=&amp;quot;double&amp;quot;&amp;gt;4000&amp;lt;/DIAMETER-FT&amp;gt; &lt;br /&gt;
  &amp;lt;HEIGHT-MSL&amp;gt;6000&amp;lt;/HEIGHT-MSL&amp;gt;&lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Models/Geometry/thermalcap.xml&amp;lt;/MODEL&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The AI thermals don't move, they are invisible, and they don't &amp;quot;lean&amp;quot; downwind. The &amp;lt;STRENGTH-FPS&amp;gt; defines the maximum vertical velocity of the airmass at the center of the thermal. The strength decreases to zero at the thermal's edge.  A&lt;br /&gt;
model can be assigned to the thermal, and usually this will be a small cloud to mark the thermal's location.  To create a sink, just give a &amp;quot;thermal&amp;quot; a negative strength, and give it a null model.  Please see the demo scenario (thermal_demo.xml) for examples.  &lt;br /&gt;
&lt;br /&gt;
A ballistic AI object starts with an initial azimuth, elevation and speed, then follows a ballistic path from there (with air resistance included). Try this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;ballistic&amp;lt;/TYPE&amp;gt; &lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Models/Geometry/rocket.xml&amp;lt;/MODEL&amp;gt;&lt;br /&gt;
  &amp;lt;SPEED-FPS type=&amp;quot;double&amp;quot;&amp;gt;500.0&amp;lt;/SPEED-FPS&amp;gt; &lt;br /&gt;
  &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;50.0&amp;lt;/ALTITUDE-FT&amp;gt; &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.39&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.62&amp;lt;/LATITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;200.0&amp;lt;/HEADING&amp;gt;&lt;br /&gt;
  &amp;lt;AZIMUTH type=&amp;quot;double&amp;quot;&amp;gt;70.0&amp;lt;/AZIMUTH&amp;gt; &lt;br /&gt;
  &amp;lt;ELEVATION type=&amp;quot;double&amp;quot;&amp;gt;45.0&amp;lt;/ELEVATION&amp;gt; &lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The AI storm objects can be displayed on weather radar. See the Aircraft/Instruments/wxradar.xml file for details. The AI aircraft objects can be displayed on radar. See the Aircraft/Instruments/radar.xml file for details, or fly the T-38 for a demo.&lt;br /&gt;
&lt;br /&gt;
=== Using Interpolation Tables ===&lt;br /&gt;
&lt;br /&gt;
Interpolation tables are very handy for effecting animations that are non-linear in relation to the property they are referenced to.&lt;br /&gt;
&lt;br /&gt;
They save the use of factors, offsets and min/max values.&lt;br /&gt;
&lt;br /&gt;
For example; relating flap extension to airspeed of an AI model. Typically an aircraft will extend flaps on final approach to control Indicated Airspeed (IAS) and stall speed to affect a low speed controlled landing. Upon touchdown the extra lift efficiency introduced by the flaps is no longer required or desirable, hence the flaps will be retracted ASAP after touch down. &lt;br /&gt;
&lt;br /&gt;
This is relatively simple in a sim aircraft as the /surface-positions/flap-pos-norm property is a normalised indicator of the flap setting chosen by the pilot.&lt;br /&gt;
&lt;br /&gt;
AI aircraft have no pilots to control flaps nor does the flight plan &amp;lt;flaps-down&amp;gt;true/false&amp;lt;/flaps-down&amp;gt; parameter effect the /AI property tree parameter, a relationship to the IAS is the next best choice.&lt;br /&gt;
&lt;br /&gt;
To effect this relationship (IAS/flap-position) using factors/offsets and min/max would be quite difficult and non-intuitive. Using interpolation tables allows the following scenario to be setup very easily and intuitively:&lt;br /&gt;
&lt;br /&gt;
: '''C172P'''&lt;br /&gt;
{| border=&amp;quot;1&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| Max&lt;br /&gt;
| 123 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Cruise&lt;br /&gt;
| 90 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Stall (no flaps)&lt;br /&gt;
| 50 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Flaps&lt;br /&gt;
| 0, 10, 20, 30 deg.&lt;br /&gt;
|-&lt;br /&gt;
| Approach&lt;br /&gt;
| 90 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| 10* flaps&lt;br /&gt;
| 90 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| 20* flaps&lt;br /&gt;
| 70 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| 30* flaps&lt;br /&gt;
| 60 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Flare &amp;amp; touch down&lt;br /&gt;
| 50 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Brake&lt;br /&gt;
| 45 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Retract flaps&lt;br /&gt;
| 45 KIAS&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
'''Table IAS/flap extension'''&lt;br /&gt;
{| border=&amp;quot;2&amp;quot;&lt;br /&gt;
|+&lt;br /&gt;
| IAS (kt) || Flaps&lt;br /&gt;
|-&lt;br /&gt;
| 90&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 70 - 89&lt;br /&gt;
| 10&lt;br /&gt;
|-&lt;br /&gt;
| 60-69&lt;br /&gt;
| 20&lt;br /&gt;
|-&lt;br /&gt;
| 45-59&lt;br /&gt;
| 30&lt;br /&gt;
|-&lt;br /&gt;
| &amp;lt; 45&lt;br /&gt;
| 0&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
When the pilot extends the flaps &amp;quot;one notch&amp;quot; they will extend to &amp;quot;10*&amp;quot; etc. In the property tree, these 4 steps will typically be normalised to 0.00, 0.33, 0.66, 1.00.  This will differ from aircraft to aircraft. If the aircraft does not have equal extensions for each &amp;quot;notch&amp;quot; of flaps, the values observed may be; 0.00, 0.10, 0.30, 0.66, 1.00. Modeling this non-linear extension using &amp;quot;factor, offset, min/max&amp;quot; would be extremely difficult if not impossible. Modeling it using interpolation tables is very easy, as you shall see.&lt;br /&gt;
&lt;br /&gt;
For sim animations, the actual physical rotation of the control surface in the real world needs to be researched; this may reveal a linear or non-linear relationship between &amp;quot;nominal flap extension indicator&amp;quot; and physical rotation of the surface. That is, &amp;quot;10 degrees of flap&amp;quot; might only involve rotating the flap surface 5 degrees around its axis in the wing structure. In our 0,10,20,30 scenarios, assuming a linear relationship, 30 degrees of flap would result in the flap being rotated 15 degrees around its wing axis. Therefore the normalised /surface-positions/flap-pos-norm property would have a factor of 15 applied to the rotate animation&lt;br /&gt;
&lt;br /&gt;
The way to change a linear relationship that uses &amp;quot;factor, offset, min/max&amp;quot; in the sim animation to a interpolation table in the AI animation is best understood by examining how &amp;quot;factor, offset, min/max&amp;quot; approach works:&lt;br /&gt;
&lt;br /&gt;
# Take normalised value of the flaps (0=retracted, 1=extended)&lt;br /&gt;
# Apply the factor.&lt;br /&gt;
# Apply the offset&lt;br /&gt;
# Apply the min/max values&lt;br /&gt;
&lt;br /&gt;
e.g.&lt;br /&gt;
 factor=60&lt;br /&gt;
 offset= -30&lt;br /&gt;
 min=-10&lt;br /&gt;
 max+10&lt;br /&gt;
&lt;br /&gt;
these figures are nonsense but are used to illustrate a point:&lt;br /&gt;
&lt;br /&gt;
 flaps retracted(0*) = 0 x 60 = 0, (offset=-30) = -30, (min= -10) = -10&lt;br /&gt;
 flaps extended(10*) = 0.33 x 60 = 20, (offset=-30) = -10, (min= -10) = -10&lt;br /&gt;
 flaps extended(20*) = 0.66 x 60 = 40, (offset=-30) = 10, (min= -10/max=10) = 10&lt;br /&gt;
 flaps extended(30*) = 1.00 x 60 = 60, (offset=-30) = 30, (max=10) = 10&lt;br /&gt;
&lt;br /&gt;
more realistically, offset and min max are not used for flaps, only a factor.&lt;br /&gt;
&lt;br /&gt;
say 27*, this represents the maximum rotation of the 3-D component in the model around its defined axis.&lt;br /&gt;
&lt;br /&gt;
 flaps retracted(0*) = 0 x 27 = 0&lt;br /&gt;
 flaps extended(10*) = 0.33 x 27 = 9&lt;br /&gt;
 flaps extended(20*) = 0.66 x 27 = 18&lt;br /&gt;
 flaps extended(30*) = 1.00 x 27 = 27&lt;br /&gt;
&lt;br /&gt;
from this it can be seen that the 3-D object will be rotated 0, 9, 18 &amp;amp; 27* to represent the 0, 10, 20 &amp;amp; 30* deployment of the flaps.&lt;br /&gt;
&lt;br /&gt;
Relating this back to the speeds above:&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot;&lt;br /&gt;
|+&lt;br /&gt;
| IAS (kt)&lt;br /&gt;
| &amp;lt;rotate&amp;gt; value&lt;br /&gt;
|-&lt;br /&gt;
| 0&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 44&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 45&lt;br /&gt;
| 27&lt;br /&gt;
|-&lt;br /&gt;
| 59&lt;br /&gt;
| 27&lt;br /&gt;
|-&lt;br /&gt;
| 60&lt;br /&gt;
| 18&lt;br /&gt;
|-&lt;br /&gt;
| 69&lt;br /&gt;
| 18&lt;br /&gt;
|-&lt;br /&gt;
| 70&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 89&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 90&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 100&lt;br /&gt;
| 0&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
this gives a stepped effect, where the movement is limited to 1knt of airspeed. That is the 3-D object will linearly move from 9* to 18* while the aircraft looses speed from 70knts to 69knts. This behaviour will make the need for an upper and lower limit of a stepped value obvious.&lt;br /&gt;
&lt;br /&gt;
a simplified table of:&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot;&lt;br /&gt;
|+&lt;br /&gt;
| IAS (kt)&lt;br /&gt;
| &amp;lt;rotate&amp;gt; value&lt;br /&gt;
|-&lt;br /&gt;
| 0&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 45&lt;br /&gt;
| 27&lt;br /&gt;
|-&lt;br /&gt;
| 60&lt;br /&gt;
| 18&lt;br /&gt;
|-&lt;br /&gt;
| 70&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 90&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 100&lt;br /&gt;
| 0&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
will cause the flaps to start extending at the rate of 1/45 x 27 degrees per knot of airspeed gained until 45 knots when the rate of change will adjust to the new gradient. This is not how flaps behave, but can be used to good effect with &amp;quot;tail dragger&amp;quot; animations where at a certain IAS the tail starts rising, maybe at an increasing rate, until flying attitude is reached when it stops rising any further. The tail rising is not a stepped function of IAS.&lt;br /&gt;
&lt;br /&gt;
Now we have the basic ideas behind interpolation tables, the question is how are they implemented…answer;…easy ….an example of the stepped flaps animation  above&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;interpolation&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;0.000&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;44.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;45.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;27.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;59.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;27.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;59.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;27.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;60.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;18.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;69.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;18.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;70.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;9.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;89.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;9.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;90.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;100.0&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
 &amp;lt;/interpolation&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Here endth Interpolation tables 101&lt;br /&gt;
:-Dene&lt;br /&gt;
&lt;br /&gt;
== Submodels ==&lt;br /&gt;
&lt;br /&gt;
Submodels are AI ballistic objects that emanate from, fall from, or launch from the user aircraft.  They are presently used to model smoke, contrails, flares, tracers, bombs, drop tanks and flight path markers. &lt;br /&gt;
&lt;br /&gt;
Submodels are controlled by the submodel manager.  The manager reads a submodel configuration file at the start of the sim session.  This configuration file is written by the aircraft author and defines all the submodels for that particular aircraft.&lt;br /&gt;
&lt;br /&gt;
As an example examine the submodels file in the Aircraft/737-300 directory.  This file creates two submodels which will become the airplane's left and right engine contrails.  Each contrail needs its own submodel definition because the contrails begin at different locations.  Each contrail consists of a train of individual &amp;quot;puff&amp;quot; models that are released in rapid succession as long as the &amp;quot;trigger&amp;quot; property is true.  We ensure an unlimited supply of puffs by setting the &amp;quot;count&amp;quot; parameter to -1. The individual puffs, being AIBallistic objects, will follow their own ballistic paths once released.  In this case we have used the &amp;quot;bouyancy&amp;quot; parameter to negate gravity in the ballistic path.  The puffs have been given a life span of eight seconds.  At cruising speed the 737 will thus have about 400 puffs behind it at any moment.&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=AI_Systems&amp;diff=2616</id>
		<title>AI Systems</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=AI_Systems&amp;diff=2616"/>
		<updated>2006-06-27T05:40:43Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: /* AI Models */ formatting + tables&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== ATC ==&lt;br /&gt;
&lt;br /&gt;
FlightGear has a simple Air Traffic Control system.&lt;br /&gt;
&lt;br /&gt;
For airports with a tower frequency, if that frequency is tuned in to your radio, you may contact ATC.&lt;br /&gt;
&lt;br /&gt;
To obtain the tower frequencies for an airport within range of ATC, go to the ATC/AI menu, choose Frequencies to display the dialog. If there are any airports within 40mn range, a button with the airport designation will appear. Click see the frequencies. Tune the tower frequency in on the COM1 radio and then hit the single quote key to open the ATC window.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Points:&lt;br /&gt;
&lt;br /&gt;
* Untowered airports are not supported in any way by ATC.&lt;br /&gt;
* You must be within 40 nautical miles of an ATC facility (towered airport with tower frequencies) to contact ATC.&lt;br /&gt;
&lt;br /&gt;
== AI Air Traffic ==&lt;br /&gt;
&lt;br /&gt;
Todo&lt;br /&gt;
&lt;br /&gt;
== AI Models ==&lt;br /&gt;
&lt;br /&gt;
Starting with FlightGear version 0.9.4 you can place AI objects in the &amp;quot;FlightGear world&amp;quot;. In version 0.9.4 the AI objects can be defined in the preferences.xml file, or in an airplane's *-set.xml file. In later versions they are defined in a &amp;quot;scenario file&amp;quot; only. The types of AI objects you can have are airplanes, ships, thunderstorms, thermals and ballistic objects. AI objects have some things in common: The have a location in the &amp;quot;FlightGear world&amp;quot;, they can have an associated exterior 3D model, and they can move according to an internal FDM (flight dynamics model). As of now, these objects are created at simulator start-up by adding some XML code to a scenario file. The scenario file must be in the data/AI directory. You select which scenario files you want to use by naming it in the preferences.xml file. The preferences.xml file has an entry that looks like this (FlightGear versions newer than 0.9.4, including CVS): &lt;br /&gt;
&lt;br /&gt;
 &amp;lt;AI&amp;gt;&lt;br /&gt;
  &amp;lt;ENABLED type=&amp;quot;bool&amp;quot;&amp;gt;true&amp;lt;/ENABLED&amp;gt;&lt;br /&gt;
  &amp;lt;SCENARIO&amp;gt;aircraft_demo&amp;lt;/SCENARIO&amp;gt;&lt;br /&gt;
 &amp;lt;/AI&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The above bit of XML enables the AI system and selects a scenario file called aircraft_demo.xml.&lt;br /&gt;
 &lt;br /&gt;
&lt;br /&gt;
The scenario file contains one entry for each AI object. The entry specifies what kind of object to create, what its initial conditions will be, and optionally (for aircraft and ships) a flight plan. The entry for a sailboat could look like this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;ship&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Models/Geometry/sailboat.xml&amp;lt;/MODEL&amp;gt; &lt;br /&gt;
  &amp;lt;SPEED-KTAS type=&amp;quot;double&amp;quot;&amp;gt;12.0&amp;lt;/SPEED-KTAS&amp;gt; &lt;br /&gt;
  &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;0.0&amp;lt;/ALTITUDE-FT&amp;gt;    &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.33333&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.61667&amp;lt;/LATITUDE&amp;gt;&lt;br /&gt;
  &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;20.0&amp;lt;/HEADING&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Most of the parameters are self-explanitory. The &amp;quot;type&amp;quot; of object can be one of &amp;quot;aircraft&amp;quot;, &amp;quot;ship&amp;quot;, &amp;quot;storm&amp;quot;, &amp;quot;thermal&amp;quot;, &amp;quot;ballistic&amp;quot; or &amp;quot;static&amp;quot;. The rest of the items give the AI object a model, a starting location, and a starting speed and direction. You use the &amp;lt;MODEL&amp;gt; item to give the object any valid exterior model. You can even make the ship look like an airplane if you want! The &amp;quot;ship&amp;quot; type can also have a &amp;lt;RUDDER&amp;gt; value specified, which will cause the ship to move in a circle (HINT: use small values, five degrees or less, and right rudder is positive). Here is an example of how to create an aircraft AI object:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;!-- puts an A-4 north of KSFO, orbiting at 7000 ft --&amp;gt;  &lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;aircraft&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
  &amp;lt;CLASS&amp;gt;light&amp;lt;/CLASS&amp;gt; &lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Aircraft/a4/Models/a4-blue.xml&amp;lt;/MODEL&amp;gt; &lt;br /&gt;
  &amp;lt;SPEED-KTAStype=&amp;quot;double&amp;quot;&amp;gt;320.0&amp;lt;/SPEED-KTAS&amp;gt; &lt;br /&gt;
  &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;7000.0&amp;lt;/ALTITUDE-FT&amp;gt; &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.6&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.9&amp;lt;/LATITUDE&amp;gt;&lt;br /&gt;
  &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;210.0&amp;lt;/HEADING&amp;gt; &lt;br /&gt;
  &amp;lt;BANK type=&amp;quot;double&amp;quot;&amp;gt;-15.0&amp;lt;/BANK&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
&lt;br /&gt;
It looks much the same as the ship AI code. There are two differences, the &amp;lt;CLASS&amp;gt; item and the &amp;lt;BANK&amp;gt; item. If the class is set to &amp;quot;tanker&amp;quot; the airplane will allow you to refuel if you can get close behind it.  The bank is of course similar to the ship's rudder. In the above example the A-4 will be orbiting to the left at 15 degrees of bank. You can also create a ship or airplane with a flight plan. In this case the object will follow the flight plan, and then delete itself when it reaches the end. The flight plans are kept in data/Data/AI/FlightPlans. To create an airplane with a flightplan do this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;aircraft&amp;lt;/TYPE&amp;gt; &lt;br /&gt;
  &amp;lt;CLASS&amp;gt;jet-transport&amp;lt;/CLASS&amp;gt;&lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Aircraft/737/Models/737.xml&amp;lt;/MODEL&amp;gt;&lt;br /&gt;
  &amp;lt;FLIGHTPLAN&amp;gt;KSFO_ILS28L.xml&amp;lt;/FLIGHTPLAN&amp;gt; &lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
To make a thunderstorm, use this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;!-- puts a thunderstorm overhead OSI (Woodside VOR) --&amp;gt;&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
   &amp;lt;TYPE&amp;gt;storm&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
   &amp;lt;MODEL&amp;gt;Models/Geometry/thunderstorm.xml&amp;lt;/MODEL&amp;gt; &lt;br /&gt;
   &amp;lt;SPEED-KTAS type=&amp;quot;double&amp;quot;&amp;gt;20.0&amp;lt;/SPEED-KTAS&amp;gt; &lt;br /&gt;
   &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;4000.0&amp;lt;/ALTITUDE-FT&amp;gt;&lt;br /&gt;
   &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.3917&amp;lt;/LATITUDE&amp;gt; &lt;br /&gt;
   &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.2817&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
   &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;90&amp;lt;/HEADING&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
There's not much to it. No, they don't turn :) To create a thermal, use this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;thermal&amp;lt;/TYPE&amp;gt;&lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.61633&amp;lt;/LATITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.38334&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;STRENGTH-FPS type=&amp;quot;double&amp;quot;&amp;gt;8.33&amp;lt;/STRENGTH-FPS&amp;gt; &lt;br /&gt;
  &amp;lt;DIAMETER-FT type=&amp;quot;double&amp;quot;&amp;gt;4000&amp;lt;/DIAMETER-FT&amp;gt; &lt;br /&gt;
  &amp;lt;HEIGHT-MSL&amp;gt;6000&amp;lt;/HEIGHT-MSL&amp;gt;&lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Models/Geometry/thermalcap.xml&amp;lt;/MODEL&amp;gt;&lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The AI thermals don't move, they are invisible, and they don't &amp;quot;lean&amp;quot; downwind. The &amp;lt;STRENGTH-FPS&amp;gt; defines the maximum vertical velocity of the airmass at the center of the thermal. The strength decreases to zero at the thermal's edge.  A&lt;br /&gt;
model can be assigned to the thermal, and usually this will be a small cloud to mark the thermal's location.  To create a sink, just give a &amp;quot;thermal&amp;quot; a negative strength, and give it a null model.  Please see the demo scenario (thermal_demo.xml) for examples.  &lt;br /&gt;
&lt;br /&gt;
A ballistic AI object starts with an initial azimuth, elevation and speed, then follows a ballistic path from there (with air resistance included). Try this:&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;ENTRY&amp;gt;&lt;br /&gt;
  &amp;lt;TYPE&amp;gt;ballistic&amp;lt;/TYPE&amp;gt; &lt;br /&gt;
  &amp;lt;MODEL&amp;gt;Models/Geometry/rocket.xml&amp;lt;/MODEL&amp;gt;&lt;br /&gt;
  &amp;lt;SPEED-FPS type=&amp;quot;double&amp;quot;&amp;gt;500.0&amp;lt;/SPEED-FPS&amp;gt; &lt;br /&gt;
  &amp;lt;ALTITUDE-FT type=&amp;quot;double&amp;quot;&amp;gt;50.0&amp;lt;/ALTITUDE-FT&amp;gt; &lt;br /&gt;
  &amp;lt;LONGITUDE type=&amp;quot;double&amp;quot;&amp;gt;-122.39&amp;lt;/LONGITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;LATITUDE type=&amp;quot;double&amp;quot;&amp;gt;37.62&amp;lt;/LATITUDE&amp;gt; &lt;br /&gt;
  &amp;lt;HEADING type=&amp;quot;double&amp;quot;&amp;gt;200.0&amp;lt;/HEADING&amp;gt;&lt;br /&gt;
  &amp;lt;AZIMUTH type=&amp;quot;double&amp;quot;&amp;gt;70.0&amp;lt;/AZIMUTH&amp;gt; &lt;br /&gt;
  &amp;lt;ELEVATION type=&amp;quot;double&amp;quot;&amp;gt;45.0&amp;lt;/ELEVATION&amp;gt; &lt;br /&gt;
 &amp;lt;/ENTRY&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The AI storm objects can be displayed on weather radar. See the Aircraft/Instruments/wxradar.xml file for details. The AI aircraft objects can be displayed on radar. See the Aircraft/Instruments/radar.xml file for details, or fly the T-38 for a demo.&lt;br /&gt;
&lt;br /&gt;
=== Using Interpolation Tables ===&lt;br /&gt;
&lt;br /&gt;
Interpolation tables are very handy for effecting animations that are non-linear in relation to the property they are referenced to.&lt;br /&gt;
&lt;br /&gt;
They save the use of factors, offsets and min/max values.&lt;br /&gt;
&lt;br /&gt;
For example; relating flap extension to airspeed of an AI model. Typically an aircraft will extend flaps on final approach to control Indicated Airspeed (IAS) and stall speed to affect a low speed controlled landing. Upon touchdown the extra lift efficiency introduced by the flaps is no longer required or desirable, hence the flaps will be retracted ASAP after touch down. &lt;br /&gt;
&lt;br /&gt;
This is relatively simple in a sim aircraft as the /surface-positions/flap-pos-norm property is a normalised indicator of the flap setting chosen by the pilot.&lt;br /&gt;
&lt;br /&gt;
AI aircraft have no pilots to control flaps nor does the flight plan &amp;lt;flaps-down&amp;gt;true/false&amp;lt;/flaps-down&amp;gt; parameter effect the /AI property tree parameter, a relationship to the IAS is the next best choice.&lt;br /&gt;
&lt;br /&gt;
To effect this relationship (IAS/flap-position) using factors/offsets and min/max would be quite difficult and non-intuitive. Using interpolation tables allows the following scenario to be setup very easily and intuitively;&lt;br /&gt;
&lt;br /&gt;
: '''C172P'''&lt;br /&gt;
{| border=&amp;quot;1&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| Max&lt;br /&gt;
| 123 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Cruise&lt;br /&gt;
| 90 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Stall (no flaps)&lt;br /&gt;
| 50 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Flaps&lt;br /&gt;
| 0, 10, 20, 30 deg.&lt;br /&gt;
|-&lt;br /&gt;
| Approach&lt;br /&gt;
| 90 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| 10* flaps&lt;br /&gt;
| 90 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| 20* flaps&lt;br /&gt;
| 70 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| 30* flaps&lt;br /&gt;
| 60 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Flare &amp;amp; touch down&lt;br /&gt;
| 50 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Brake&lt;br /&gt;
| 45 KIAS&lt;br /&gt;
|-&lt;br /&gt;
| Retract flaps&lt;br /&gt;
| 45 KIAS&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
'''Table IAS/flap extension'''&lt;br /&gt;
{| border=&amp;quot;2&amp;quot;&lt;br /&gt;
|+&lt;br /&gt;
| IAS (kt) || Flaps&lt;br /&gt;
|-&lt;br /&gt;
| 90&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 70 - 89&lt;br /&gt;
| 10&lt;br /&gt;
|-&lt;br /&gt;
| 60-69&lt;br /&gt;
| 20&lt;br /&gt;
|-&lt;br /&gt;
| 45-59&lt;br /&gt;
| 30&lt;br /&gt;
|-&lt;br /&gt;
| &amp;lt; 45&lt;br /&gt;
| 0&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
When the pilot extends the flaps &amp;quot;one notch&amp;quot; they will extend to &amp;quot;10*&amp;quot; etc. In the property tree, these 4 steps will typically be normalised to 0.00, 0.33, 0.66, 1.00.  This will differ from aircraft to aircraft. If the aircraft does not have equal extensions for each &amp;quot;notch&amp;quot; of flaps, the values observed may be; 0.00, 0.10, 0.30, 0.66, 1.00. Modeling this non-linear extension using &amp;quot;factor, offset, min/max&amp;quot; would be extremely difficult if not impossible. Modeling it using interpolation tables is very easy, as you shall see.&lt;br /&gt;
&lt;br /&gt;
For sim animations, the actual physical rotation of the control surface in the real world needs to be researched; this may reveal a linear or non-linear relationship between &amp;quot;nominal flap extension indicator&amp;quot; and physical rotation of the surface. That is, &amp;quot;10 degrees of flap&amp;quot; might only involve rotating the flap surface 5 degrees around its axis in the wing structure. In our 0,10,20,30 scenarios, assuming a linear relationship, 30 degrees of flap would result in the flap being rotated 15 degrees around its wing axis. Therefore the normalised /surface-positions/flap-pos-norm property would have a factor of 15 applied to the rotate animation&lt;br /&gt;
&lt;br /&gt;
The way to change a linear relationship that uses &amp;quot;factor, offset, min/max&amp;quot; in the sim animation to a interpolation table in the AI animation is best understood by examining how &amp;quot;factor, offset, min/max&amp;quot; approach works;&lt;br /&gt;
&lt;br /&gt;
# Take normalised value of the flaps (0=retracted, 1=extended)&lt;br /&gt;
# Apply the factor.&lt;br /&gt;
# Apply the offset&lt;br /&gt;
# Apply the min/max values&lt;br /&gt;
&lt;br /&gt;
e.g.&lt;br /&gt;
 factor=60&lt;br /&gt;
 offset= -30&lt;br /&gt;
 min=-10&lt;br /&gt;
 max+10&lt;br /&gt;
&lt;br /&gt;
these figures are nonsense but are used to illustrate a point;&lt;br /&gt;
&lt;br /&gt;
 flaps retracted(0*) = 0 x 60 = 0, (offset=-30) = -30, (min= -10) = -10&lt;br /&gt;
 flaps extended(10*) = 0.33 x 60 = 20, (offset=-30) = -10, (min= -10) = -10&lt;br /&gt;
 flaps extended(20*) = 0.66 x 60 = 40, (offset=-30) = 10, (min= -10/max=10) = 10&lt;br /&gt;
 flaps extended(30*) = 1.00 x 60 = 60, (offset=-30) = 30, (max=10) = 10&lt;br /&gt;
&lt;br /&gt;
more realistically, offset and min max are not used for flaps, only a factor.&lt;br /&gt;
&lt;br /&gt;
say 27*, this represents the maximum rotation of the 3-D component in the model around its defined axis.&lt;br /&gt;
&lt;br /&gt;
 flaps retracted(0*) = 0 x 27 = 0&lt;br /&gt;
 flaps extended(10*) = 0.33 x 27 = 9&lt;br /&gt;
 flaps extended(20*) = 0.66 x 27 = 18&lt;br /&gt;
 flaps extended(30*) = 1.00 x 27 = 27&lt;br /&gt;
&lt;br /&gt;
from this it can be seen that the 3-D object will be rotated 0, 9, 18 &amp;amp; 27* to represent the 0, 10, 20 &amp;amp; 30* deployment of the flaps.&lt;br /&gt;
&lt;br /&gt;
Relating this back to the speeds above;&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot;&lt;br /&gt;
|+&lt;br /&gt;
| IAS (kt)&lt;br /&gt;
| &amp;lt;rotate&amp;gt; value&lt;br /&gt;
|-&lt;br /&gt;
| 0&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 44&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 45&lt;br /&gt;
| 27&lt;br /&gt;
|-&lt;br /&gt;
| 59&lt;br /&gt;
| 27&lt;br /&gt;
|-&lt;br /&gt;
| 60&lt;br /&gt;
| 18&lt;br /&gt;
|-&lt;br /&gt;
| 69&lt;br /&gt;
| 18&lt;br /&gt;
|-&lt;br /&gt;
| 70&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 89&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 90&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 100&lt;br /&gt;
| 0&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
this gives a stepped effect, where the movement is limited to 1knt of airspeed. That is the 3-D object will linearly move from 9* to 18* while the aircraft looses speed from 70knts to 69knts. This behaviour will make the need for an upper and lower limit of a stepped value obvious.&lt;br /&gt;
&lt;br /&gt;
a simplified table of;&lt;br /&gt;
&lt;br /&gt;
{| border=&amp;quot;1&amp;quot;&lt;br /&gt;
|+&lt;br /&gt;
| IAS (kt)&lt;br /&gt;
| &amp;lt;rotate&amp;gt; value&lt;br /&gt;
|-&lt;br /&gt;
| 0&lt;br /&gt;
| 0&lt;br /&gt;
|-&lt;br /&gt;
| 45&lt;br /&gt;
| 27&lt;br /&gt;
|-&lt;br /&gt;
| 60&lt;br /&gt;
| 18&lt;br /&gt;
|-&lt;br /&gt;
| 70&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 90&lt;br /&gt;
| 9&lt;br /&gt;
|-&lt;br /&gt;
| 100&lt;br /&gt;
| 0&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
will cause the flaps to start extending at the rate of 1/45 x 27 degrees per knot of airspeed gained until 45 knots when the rate of change will adjust to the new gradient. This is not how flaps behave, but can be used to good effect with &amp;quot;tail dragger&amp;quot; animations where at a certain IAS the tail starts rising, maybe at an increasing rate, until flying attitude is reached when it stops rising any further. The tail rising is not a stepped function of IAS.&lt;br /&gt;
&lt;br /&gt;
Now we have the basic ideas behind interpolation tables, the question is how are they implemented…answer;…easy ….an example of the stepped flaps animation  above&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;interpolation&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;0.000&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;44.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;45.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;27.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;59.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;27.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;59.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;27.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;60.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;18.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;69.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;18.00&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;70.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;9.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;89.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;9.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;90.00&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
   &amp;lt;entry&amp;gt;&amp;lt;ind&amp;gt;100.0&amp;gt;&amp;lt;/ind&amp;gt;&amp;lt;dep&amp;gt;0.000&amp;lt;/dep&amp;gt;&amp;lt;/entry&amp;gt;&lt;br /&gt;
 &amp;lt;/interpolation&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Here endth Interpolation tables 101&lt;br /&gt;
:-Dene&lt;br /&gt;
&lt;br /&gt;
== Submodels ==&lt;br /&gt;
&lt;br /&gt;
Submodels are AI ballistic objects that emanate from, fall from, or launch from the user aircraft.  They are presently used to model smoke, contrails, flares, tracers, bombs, drop tanks and flight path markers. &lt;br /&gt;
&lt;br /&gt;
Submodels are controlled by the submodel manager.  The manager reads a submodel configuration file at the start of the sim session.  This configuration file is written by the aircraft author and defines all the submodels for that particular aircraft.&lt;br /&gt;
&lt;br /&gt;
As an example examine the submodels file in the Aircraft/737-300 directory.  This file creates two submodels which will become the airplane's left and right engine contrails.  Each contrail needs its own submodel definition because the contrails begin at different locations.  Each contrail consists of a train of individual &amp;quot;puff&amp;quot; models that are released in rapid succession as long as the &amp;quot;trigger&amp;quot; property is true.  We ensure an unlimited supply of puffs by setting the &amp;quot;count&amp;quot; parameter to -1. The individual puffs, being AIBallistic objects, will follow their own ballistic paths once released.  In this case we have used the &amp;quot;bouyancy&amp;quot; parameter to negate gravity in the ballistic path.  The puffs have been given a life span of eight seconds.  At cruising speed the 737 will thus have about 400 puffs behind it at any moment.&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Modeling_resources&amp;diff=2612</id>
		<title>Modeling resources</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Modeling_resources&amp;diff=2612"/>
		<updated>2006-06-26T21:08:50Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;This is supposed to eventually become a directory of 4D-modelling related resources (i.e. Tutorials, 3D models, textures, images, sounds etc.) that are freely available on the internet.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Please note that while many webpages offer free downloads and use of files, it may be necessary and is indeed recommended to explicitly ask the individual copyright holders for their permission to include their work within FlightGear.  In order to become part of the FlightGear base package, it will be necessary to for the copyrighted work to be licensed under the GPL.&lt;br /&gt;
&lt;br /&gt;
=== Tutorials ===&lt;br /&gt;
* http://www.gamasutra.com/features/20060622/ahearn_01.shtml&lt;br /&gt;
&lt;br /&gt;
=== Misc. ===&lt;br /&gt;
* http://www.m3corp.com&lt;br /&gt;
* http://www.help3d.com&lt;br /&gt;
* http://www.mr-cad.com&lt;br /&gt;
* http://www.3dmodelsharing.com&lt;br /&gt;
* http://www.pitchup.com&lt;br /&gt;
&lt;br /&gt;
=== 3 Way Views ===&lt;br /&gt;
* http://www.stevelange.net/waco/plans.html&lt;br /&gt;
* http://www.fortunecity.com/marina/manatee/272&lt;br /&gt;
* http://www.pioneeraeroplanes.com&lt;br /&gt;
* http://www.theplanpage.com&lt;br /&gt;
* http://www.hotkey.net.au/~ue626/index.htm&lt;br /&gt;
* http://www.simviation.com/designresources.htm&lt;br /&gt;
* http://www.airwar.ru/indexe.html (en)&lt;br /&gt;
* http://www.airwar.ru/index.html (ru)&lt;br /&gt;
* http://www.dfrc.nasa.gov/gallery/graphics/index.html&lt;br /&gt;
&lt;br /&gt;
=== Free 3D Models, Textures etc ===&lt;br /&gt;
* http://www.3dcafe.com/index.php?option=com_wrapper&amp;amp;Itemid=38&lt;br /&gt;
* http://www.amazing3d.com/modfree.html&lt;br /&gt;
* http://www.greatbuildings.com/types/models/models.html&lt;br /&gt;
* http://www.huntfor.com/3d/links/freemodels.htm&lt;br /&gt;
* http://www.3dlinks.com/links.cfm?categoryid=9&amp;amp;subcategoryid=91&lt;br /&gt;
* http://www.rocky3d.com/free3d.htm&lt;br /&gt;
* http://www.amazing3d.com/free/free.shtml&lt;br /&gt;
* http://free-textures.got3d.com/index.html&lt;br /&gt;
* http://www.3dtotal.com/home2/links/links.asp?cat=texture&lt;br /&gt;
* http://www.3dlinks.com/oldsite/textures_free.cfm&lt;br /&gt;
* http://dmoz.org/Computers/Software/Graphics/3D/Models/&lt;br /&gt;
* http://madmetzi.smokers-board.de/free3d.htm&lt;br /&gt;
* http://www.3dtotal.com/home2/links/links.asp?cat=meshes&lt;br /&gt;
* http://objects.povworld.org/links6.html&lt;br /&gt;
* http://www.creative-3d.net/free3D.cfm&lt;br /&gt;
* http://www.3dlinks.com/oldsite/objects_free.cfm&lt;br /&gt;
* http://www.grsites.com/textures&lt;br /&gt;
&lt;br /&gt;
=== Free Aircraft Sounds ===&lt;br /&gt;
* http://rareaviation.com/spaiso.html&lt;br /&gt;
* http://avanimation.avsupport.com/Sound.htm&lt;br /&gt;
* http://www.geocities.com/CapeCanaveral/Lab/4515/other.htm&lt;br /&gt;
* http://www.soundrangers.com/&lt;br /&gt;
* http://www.audiosparx.com/sa/display/sounds.cfm?start=101&amp;amp;sound_group_iid=34&lt;br /&gt;
* http://images.military.com/Resources/ResourceSubmittedFileView?file=multimedia_sounds.htm&lt;br /&gt;
* http://www.aviationshoppe.com/Sounds1.html&lt;br /&gt;
&lt;br /&gt;
=== Hardcopy and Scanned Books ===&lt;br /&gt;
* Detail and scale series by Alwyn T. Lloyd and Bery Kinzey&lt;br /&gt;
* http://www.flight-manuals-on-cd.com&lt;br /&gt;
* http://www.esscoaircraft.com/Aircraft_Manuals_s/2.htm&lt;br /&gt;
* http://www.eflightmanuals.com *Note: DRM copy protection*&lt;br /&gt;
* http://www.jbwholesalers.com.au/detailandscale/detailandscale.htm&lt;br /&gt;
* http://www.nchsinc.com/shop/BOOKS.HTM&lt;br /&gt;
* http://rareaviation.com/manuals.html&lt;br /&gt;
* http://www.oldmanuals.com/&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=Modeling_resources&amp;diff=2611</id>
		<title>Modeling resources</title>
		<link rel="alternate" type="text/html" href="https://wiki.flightgear.org/w/index.php?title=Modeling_resources&amp;diff=2611"/>
		<updated>2006-06-26T21:08:34Z</updated>

		<summary type="html">&lt;p&gt;Hellosimon: add game textures link and reword intro&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;This is supposed to eventually become a directory of 4D-modelling related resources (i.e. Tutorials, 3D models, textures, images, sounds etc.) that are freely available on the internet.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Please note that while many webpages offer free downloads and use of files, it may be necessary and is indeed recommended to explicitly ask the individual copyright holders for their permission to include their work within FlightGear.  In order to become part of the FlightGear base package, it will be necessary to for the copyrighted work to be licensed under the GPL.&lt;br /&gt;
&lt;br /&gt;
=== Tutorials ==&lt;br /&gt;
* http://www.gamasutra.com/features/20060622/ahearn_01.shtml&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
=== Misc. ===&lt;br /&gt;
* http://www.m3corp.com&lt;br /&gt;
* http://www.help3d.com&lt;br /&gt;
* http://www.mr-cad.com&lt;br /&gt;
* http://www.3dmodelsharing.com&lt;br /&gt;
* http://www.pitchup.com&lt;br /&gt;
&lt;br /&gt;
=== 3 Way Views ===&lt;br /&gt;
* http://www.stevelange.net/waco/plans.html&lt;br /&gt;
* http://www.fortunecity.com/marina/manatee/272&lt;br /&gt;
* http://www.pioneeraeroplanes.com&lt;br /&gt;
* http://www.theplanpage.com&lt;br /&gt;
* http://www.hotkey.net.au/~ue626/index.htm&lt;br /&gt;
* http://www.simviation.com/designresources.htm&lt;br /&gt;
* http://www.airwar.ru/indexe.html (en)&lt;br /&gt;
* http://www.airwar.ru/index.html (ru)&lt;br /&gt;
* http://www.dfrc.nasa.gov/gallery/graphics/index.html&lt;br /&gt;
&lt;br /&gt;
=== Free 3D Models, Textures etc ===&lt;br /&gt;
* http://www.3dcafe.com/index.php?option=com_wrapper&amp;amp;Itemid=38&lt;br /&gt;
* http://www.amazing3d.com/modfree.html&lt;br /&gt;
* http://www.greatbuildings.com/types/models/models.html&lt;br /&gt;
* http://www.huntfor.com/3d/links/freemodels.htm&lt;br /&gt;
* http://www.3dlinks.com/links.cfm?categoryid=9&amp;amp;subcategoryid=91&lt;br /&gt;
* http://www.rocky3d.com/free3d.htm&lt;br /&gt;
* http://www.amazing3d.com/free/free.shtml&lt;br /&gt;
* http://free-textures.got3d.com/index.html&lt;br /&gt;
* http://www.3dtotal.com/home2/links/links.asp?cat=texture&lt;br /&gt;
* http://www.3dlinks.com/oldsite/textures_free.cfm&lt;br /&gt;
* http://dmoz.org/Computers/Software/Graphics/3D/Models/&lt;br /&gt;
* http://madmetzi.smokers-board.de/free3d.htm&lt;br /&gt;
* http://www.3dtotal.com/home2/links/links.asp?cat=meshes&lt;br /&gt;
* http://objects.povworld.org/links6.html&lt;br /&gt;
* http://www.creative-3d.net/free3D.cfm&lt;br /&gt;
* http://www.3dlinks.com/oldsite/objects_free.cfm&lt;br /&gt;
* http://www.grsites.com/textures&lt;br /&gt;
&lt;br /&gt;
=== Free Aircraft Sounds ===&lt;br /&gt;
* http://rareaviation.com/spaiso.html&lt;br /&gt;
* http://avanimation.avsupport.com/Sound.htm&lt;br /&gt;
* http://www.geocities.com/CapeCanaveral/Lab/4515/other.htm&lt;br /&gt;
* http://www.soundrangers.com/&lt;br /&gt;
* http://www.audiosparx.com/sa/display/sounds.cfm?start=101&amp;amp;sound_group_iid=34&lt;br /&gt;
* http://images.military.com/Resources/ResourceSubmittedFileView?file=multimedia_sounds.htm&lt;br /&gt;
* http://www.aviationshoppe.com/Sounds1.html&lt;br /&gt;
&lt;br /&gt;
=== Hardcopy and Scanned Books ===&lt;br /&gt;
* Detail and scale series by Alwyn T. Lloyd and Bery Kinzey&lt;br /&gt;
* http://www.flight-manuals-on-cd.com&lt;br /&gt;
* http://www.esscoaircraft.com/Aircraft_Manuals_s/2.htm&lt;br /&gt;
* http://www.eflightmanuals.com *Note: DRM copy protection*&lt;br /&gt;
* http://www.jbwholesalers.com.au/detailandscale/detailandscale.htm&lt;br /&gt;
* http://www.nchsinc.com/shop/BOOKS.HTM&lt;br /&gt;
* http://rareaviation.com/manuals.html&lt;br /&gt;
* http://www.oldmanuals.com/&lt;/div&gt;</summary>
		<author><name>Hellosimon</name></author>
	</entry>
	<entry>
		<id>https://wiki.flightgear.org/w/index.php?title=File:Catii-iii_addon_html_m30fea806.jpg&amp;diff=2610</id>
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		<updated>2006-06-26T20:55:00Z</updated>

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		<updated>2006-06-26T20:54:49Z</updated>

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		<updated>2006-06-26T20:54:39Z</updated>

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