Displays GPS and orientation data, in a manner similar to an aircraft's displays.

* Speed, heading, and altitude from the GPS
* Pitch and roll from the acceleration sensor

Check regulatory requirements before even considering using this in an aircraft!

Note: the speed display on left-hand side shows groundspeed (in knots) and NOT airspeed!

Optimised for 800x480 screens, other sizes may look weird.

To use navigation functions (lower half of screen), set runway position and heading while near the threshold. Your position (in yellow) will then be shown relative to the runway (in white).

Drag to left or right on bottom half of screen to zoom the navigaton display.

Various "Plus" versions of this app are available which contain databases of airport locations for display on the map.

HUD, PFD, gliding, general aviation.

此版本中的新功能：

Added options screen to toggle visibility of attitude indicator

Added magnetic variation

Added option to define the current attitude as straight-and-level (to allow for mountings where the phone isn't vertical relative to the aircraft)

Improved display of ground height on altimeter, and added option to set it manually.

Added roll indicator (and option to enable it)

Added navigation functions and zoom controls to lower screen.