A micro camera is installed onboard an r/c plane F-16. The camera transmit live the video to ground and I wear video goggle to fly the plane in real time like if I was in the cockpit. The camera replace the head of the pilot and the movement of the cam is control by the movement of my head on ground via a head mount gyroscope (head tracker)
The whole system cost me around $1500 including the plane. But it is many hours of hand made modifcation. You can start with simpler video system that cost around $500 and install it on your own r/c plane. Search for FPV on the web for more info.