A Rc Plane(radio-controlled aircraft) is a flying plane that is controlled remotely by an operator on the ground using a hand-held radio transmitter. The transmitter communicates with a receiver within the craft that sends signals to servomechanisms (servos) which move the control surfaces based on the position of joysticks on the transmitter. The control surfaces, in turn, affect the orientation of the plane.

In following video you can see a huge concorde RC plane powered by two turbines test flight. This thing must be so fun to fly.