====== High Altitude Glider Using ArduPilot ======

This section will look at modifying ArduPilot for use in a High Altitude Glider as an autopilot system.

Need addressing:
  * Stock GPS doesn't work > 18km - run it with another gps? How do you integrate that with ardupilot?
  * Some people are noting sensor failure above a certain alt - is this present in APM2?
  * How to set PID values for custom high altitude airframes
  * ....