This guy is incredible. I worked on some UAV/UGV systems at my uni and heard of quite a few teams using X-Plane as a simulation environment for their UAVs. As

This guy is incredible. I worked on some UAV/UGV systems at my uni and heard of quite a few teams using X-Plane as a simulation environment for their UAVs. As stated in the article the simulator actually tries to model what's happening with the aircraft instead of using look-up tables based on full size aircraft, making it much more useful for modeling model... (small scale) aircraft.