An RC flight simulator is a computer program that allows pilots of radio-controlled aircraft to practice on a computer, without the risk and expense of damaging a real model. Besides the obvious use of training beginners, they are also used for practising new aerobatics, evaluating a model before buying it, and to allow flight practice when conditions are otherwise unsuitable. Most simulators allow the use of real R/C transmitters to control the sim. Some of these simulators are dedicated to R/C flight, while others are generic simulators that can simulate both full-scale and R/C flight.