I have flown RC for over 40 years now. Like asked above, what do you have and what do you want to do? I am a Futaba guy myself. Most radios now will come with model memory, so you can use it for many different models, from planes, gliders and heli's. For sure get 2.4 GHz don't buy an AM or FM radio any more. Dynasoar Rocketry makes RC rocket gliders, might want to look at that also. Depending on your plane, 3 channels are minimum. 1 each for elevator, rudder and throttle. Or, 1 each for aileron, elevator and throttle. But I am pretty sure you would have to buy a 4 channel radio. Most will come with a RX, some with servos also. Your plane might need full size servos or minis. A pic of the plane would help also. As with anything, if you have never flown RC, try to find help. It is possible to do on your own, I did. But I did crash a few learning. Number one thing is, do not get discouraged if you crash, it IS going to happen sooner or later. Please feel free to ask any question you may have.