We have made a radio controlled hovercraft. First we controlled it with a PlayStation 3 controller using Arduino. Unfortunately the hovercraft didn't move controlling it that way. The hovercraft was lifting up, and we could steer with the rudder, but the motor on the back didn't give enough power to push the thing forward.
Actually, the motor wasn't running at it's topspeed. Reason was, the ESC (speedcontroller) wasn't calibrated in the right way. It was very difficult to calibrate the ESC again, using the PS3 controller. (the ESC seemed not to react).
Therefore, our idea was to controll the hovercraft with a radio transmitter. We removed the Arduino part and calibrated the ESC again this way en tested the hovercraft. This is what it looked like: