Probably the nicest page I've seen on the subject is DIY Drones ( http://diydrones.com http://diydrones.com ), which covers both fixed-wing and copter-based UAV

Probably the nicest page I've seen on the subject is DIY Drones ( http://diydrones.com http://diydrones.com ), which covers both fixed-wing and copter-based UAV engineering. Their fixed-wing autopilot is called ArduPlane ( http://plane.ardupilot.com http://plane.ardupilot.com ).