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+ First section first section describing the purpose of this; + Links to related content; + How to add them. *Caveat* I have not tested this myself !
m (Heading levels; templ: note)
(+ First section first section describing the purpose of this; + Links to related content; + How to add them. *Caveat* I have not tested this myself !)
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Tags with '''catalog metadata''' can be added to aircraft to help searching and filtering them, for example in future versions of the [[Aircraft Center|aircraft center]], so that a user can quicker find the aircraft of interest.


== Supported Tags ==
== Supported Tags ==
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=== Aircraft types ===
=== Aircraft types ===
* ga
* ga
* helicopter
* helicopter
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=== Manufacturers ===
=== Manufacturers ===
Intention here is to provide logical groupings, not to track corporate history - so the MD-80 and MD-11 would get the 'douglas' tag, which will likely translate to 'Douglas / McDonell-Douglas' in the UI. The 717 could get the boeing and douglas tags. Also not supposed to be an exhaustive list, this is so we can search on 'all glass-cockpit Boeing and Airbus aircraft'. It might be worth actively lying in the tags, i.e group all Hawker-Siddley / BAC / Avro aircraft under the Vickers tag.
Intention here is to provide logical groupings, not to track corporate history - so the MD-80 and MD-11 would get the 'douglas' tag, which will likely translate to 'Douglas / McDonell-Douglas' in the UI. The 717 could get the boeing and douglas tags. Also not supposed to be an exhaustive list, this is so we can search on 'all glass-cockpit Boeing and Airbus aircraft'. It might be worth actively lying in the tags, i.e group all Hawker-Siddley / BAC / Avro aircraft under the Vickers tag.


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=== Eras ===
=== Eras ===
Logical groupings, not historical accuracy - some aircraft are going to have a lot of these, e.g. the B-52. Again the goal is intelligent searches: 'show me all WW2 fighters'. Would like to avoid this getting political too, comments on that are welcome
Logical groupings, not historical accuracy - some aircraft are going to have a lot of these, e.g. the B-52. Again the goal is intelligent searches: 'show me all WW2 fighters'. Would like to avoid this getting political too, comments on that are welcome


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=== Aircraft Features ===
=== Aircraft Features ===
This could get long, as always trying to focus on tags people might search on - 'show me all the VTOL aircraft' or 'show me all the biplanes'. Some will be very useful in improving the user-experience, if the plane is tagged with seaplane we might be able to force a water start (not for amphibious obviously).
This could get long, as always trying to focus on tags people might search on - 'show me all the VTOL aircraft' or 'show me all the biplanes'. Some will be very useful in improving the user-experience, if the plane is tagged with seaplane we might be able to force a water start (not for amphibious obviously).


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== Examples ==
== Examples ==
* B-52 would have: bomber, jet. boeing, coldwar, 1960s, vietnam, 1970s, 1980s, gulfwar1, nato, refuel, retractable-gear, ifr
* B-52 would have: bomber, jet. boeing, coldwar, 1960s, vietnam, 1970s, 1980s, gulfwar1, nato, refuel, retractable-gear, ifr
* Citation would have: cessna. bizjet, jet, 2-engine, glass-cockpit, ifr, retractable-gear
* Citation would have: cessna, bizjet, jet, 2-engine, glass-cockpit, ifr, retractable-gear
* Cub would have: piper, piston, 1-engine, ga, trainer, fixed-gear, 1930s, ww2, tail-dragger
* Cub would have: piper, piston, 1-engine, ga, trainer, fixed-gear, 1930s, ww2, tail-dragger
== Adding tags to an aircraft ==
The tags are added to or included into the sim section of the -set.xml file(s) like for example below:
<syntaxhighlight lang="xml">
<?xml version="1.0" encoding="UTF-8" ?>
<PropertyList>
<sim>
  <tags>
  <tag>passenger</tag>
  <tag>boeing</tag>
  <tag>jet</tag>
  <tag>twin-engine</tag>
  <tag>retractable-gear</tag>
  <tag>etops</tag>
  <tag>glass-cockpit</tag>
  <tag>ifr</tag>
  </tags>
</sim>
</PropertyList>
</syntaxhighlight>
== Related content ==
* [[Simplifying Aircraft Deployment]]
* {{cite web |url=http://sourceforge.net/p/flightgear/mailman/flightgear-devel/thread/D4E91618-5AE0-4073-98B3-43711E70871A%40mac.com/#msg32375981 |title=<nowiki>[</nowiki>Flightgear-devel<nowiki>]</nowiki> 24 days from freeze: what happened to...}}


[[Category:Core development projects]]
[[Category:Core development projects]]

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