Stock and Selling a huge range of Radio Controlled (RC) Helicopters. RC Helis or RC Helicopters - you choose the name, but it's the same product! Entry level RC Helis tend to be smaller, contra-rotating models - with two sets of main blades spinning in opposite directions. These are an easy to fly RC Heli, but limited in how manoeuvrable they can be. For more of a challenge take a look at fixed pitch RC Helis, which have a conventional tail rotor. For more advanced pilots, collective pitch RC Helis allow for full 3D flight, and a world of possibilities in terms of aerobatics and more!