Most of the better radios have a kill switch for the engine. You set the idle using your throttle trim, then set the kill switch up to close the barrel all the way. Since you are doing the smart thing and getting some training, speak with your trainer before you buy your radio gear. If the club already has a buddy box and cable to use you can save some dollars by buying a transmitter that is compatible with it. Otherwise you will have to buy your own buddy box which adds another $40 or so to your investment.