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(New page: thumb|270px|A possible layout for a PFD. See the picture below for the caption. [[Image:PFD2.jpg|thumb|270px|1. attitude<br>2. airspeed<br>3. altitude<br>4. vertical spe...)
 
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[[Image:PFD1.jpg|thumb|270px|A possible layout for a PFD. See the picture below for the caption.]]
{{Note|Also see: [[Canvas PFD Framework]]}}
[[Image:PFD2.jpg|thumb|270px|1. attitude<br>2. airspeed<br>3. altitude<br>4. vertical speed<br>5. heading]]
==Generic==
 
A '''primary flight display''' or '''PFD''' is a modern [[aircraft]] instrument dedicated to flight information. Much like multi-function displays, primary flight displays are built around an LCD or CRT display device. Representations of older six pack or "steam gauge" instruments are combined on one compact display, simplifying pilot workflow and streamlining cockpit layouts.
A '''primary flight display''' or '''PFD''' is a modern [[aircraft]] instrument dedicated to flight information. Much like multi-function displays, primary flight displays are built around an LCD or CRT display device. Representations of older six pack or "steam gauge" instruments are combined on one compact display, simplifying pilot workflow and streamlining cockpit layouts.
{| cellpadding="20"
|[[File:PFD1.jpg|270px|A possible layout for a PFD. See the picture below for the caption.]]
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|[[File:PFD2.jpg|270px|]]
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|1. attitude<br />2. airspeed<br />3. altitude<br />4. vertical speed<br />5. heading
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== Primus 1000 Primary flight display ==
The Primus 1000 PFD is part of the [[Cessna Citation Bravo panel]]. The description is specific to this panel however it can be applicable for other models.


Most airliners built since the 1980s — as well as many business jets and an increasing number of newer general aviation aircraft — have glass cockpits equipped with primary flight and multi-function displays.
[[File:Citation_PFD.png|400px]]
 
Mechanical gauges have not been completely eliminated from the cockpit with the onset of the PFD; they are retained for backup purposes in the event of total electrical failure.
 
==Layout==
'''Note:''' Not all described functions are implented in FlightGear (yet).
 
The details of the display layout on a primary flight display can vary enormously. However, some general observations can be made that apply to the great majority of PFDs.
 
The center of the PFD usually contains an attitude indicator, which gives the pilot information about the aircraft's pitch and roll characteristics, and the orientation of the aircraft with respect to the horizon. Other information that may or may not appear on or about the attitude indicator can include the stall angle, a runway diagram, ILS localizer and glide-path “needles”, and so on. Unlike mechanical instruments, this information can be dynamically updated as required; the stall angle, for example, can be adjusted in real time to reflect the calculated critical angle of attack of the aircraft in its current configuration (airspeed, etc.). The PFD may also show an indicator of the aircraft's future path (over the next few seconds), as calculated by onboard computers, making it easier for pilots to anticipate aircraft movements and reactions.
 
To the left and right of the attitude indicator are usually the airspeed and altitude indicators, respectively. The airspeed indicator displays the speed of the aircraft in knots, while the altitude indicator displays the aircraft's altitude above sea level (MSL).
 
The vertical speed indicator, usually next to the altitude indicator, indicates to the pilot how fast the aircraft is ascending or descending, or the rate at which the altitude changes. This is usually represented with numbers in "thousands of feet per minute." For example, a measurement of "+2" indicates an ascent of 2000 feet per minute, while a measurement of "-1.5" indicates a descent of 1500 feet per minute. There may also be a simulated needle showing the general direction and magnitude of vertical movement.


At the bottom of the PFD is the heading display, which shows the pilot the magnetic heading of the aircraft. This functions much like a standard magnetic heading indicator, turning as required. Often this part of the display shows not only the current heading, but also the current track (actual path over the ground), current heading setting on the autopilot, and other indicators.
#Autopilot speed, sync with actual or set with autopilot
#Autopilot mode
#[[Indicated airspeed]]
#[[Attitude indicator]]
#Indicated airspeed in Mach (yes, this is a combined image but the value's were real)
#Double bearing [[HSI]] (blue / white) with course deviation bar (green) and heading bug (red)
#Set radial of selected NAV, change with standby HSI or Autopilot
#Bearing type (NAV, ADF, FMS) in colour of bearing arrow
#Windspeed and direction relative to airplane ([[METAR]] is much, much more reliable)
#Current heading
#Autopilot [[altitude]],change with MFD knob, sync with actual or set with autopilot
#Single cue or cross pointer (cross pointer is not allowed in Europe)
#[[Indicated altitude]]. From 500 feet [[AGL]] and lower the "ladder" will also show ground
#Glidescope pointer (dot above centre = flying below glidescope)
#Decision height (can only be set on ground)
#Altimeter correction setting, [[QNH]]
#Distance to [[NAV1]] or [[NAV2]], indication of NAV type ([[VOR]], [[ILS]], [[FMS]])
#Vertical speed indicator
#Ground speed (or TTG or ET)


Other information displayed on the PFD includes navigational marker information, bugs (to control the autopilot), ILS glideslope indicators, course deviation indicators, altitude indicator QFE settings, and much more.
== External link ==
* [http://en.wikipedia.org/wiki/Primary_flight_display Wikipedia]


[[Category:Aircraft instruments]]
[[Category:Aircraft instruments]]

Latest revision as of 14:22, 21 June 2014

Note  Also see: Canvas PFD Framework

Generic

A primary flight display or PFD is a modern aircraft instrument dedicated to flight information. Much like multi-function displays, primary flight displays are built around an LCD or CRT display device. Representations of older six pack or "steam gauge" instruments are combined on one compact display, simplifying pilot workflow and streamlining cockpit layouts.

A possible layout for a PFD. See the picture below for the caption. PFD2.jpg
1. attitude
2. airspeed
3. altitude
4. vertical speed
5. heading

Primus 1000 Primary flight display

The Primus 1000 PFD is part of the Cessna Citation Bravo panel. The description is specific to this panel however it can be applicable for other models.

Citation PFD.png

  1. Autopilot speed, sync with actual or set with autopilot
  2. Autopilot mode
  3. Indicated airspeed
  4. Attitude indicator
  5. Indicated airspeed in Mach (yes, this is a combined image but the value's were real)
  6. Double bearing HSI (blue / white) with course deviation bar (green) and heading bug (red)
  7. Set radial of selected NAV, change with standby HSI or Autopilot
  8. Bearing type (NAV, ADF, FMS) in colour of bearing arrow
  9. Windspeed and direction relative to airplane (METAR is much, much more reliable)
  10. Current heading
  11. Autopilot altitude,change with MFD knob, sync with actual or set with autopilot
  12. Single cue or cross pointer (cross pointer is not allowed in Europe)
  13. Indicated altitude. From 500 feet AGL and lower the "ladder" will also show ground
  14. Glidescope pointer (dot above centre = flying below glidescope)
  15. Decision height (can only be set on ground)
  16. Altimeter correction setting, QNH
  17. Distance to NAV1 or NAV2, indication of NAV type (VOR, ILS, FMS)
  18. Vertical speed indicator
  19. Ground speed (or TTG or ET)

External link

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