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Radio controlled (RC) helicopters, although often grouped with RC airplanes, are unique because of the differences in construction, aerodynamics, and flight training. Several designs of RC helicopters exist, some more maneuverable than others (such as helicopters with collective pitch). The more maneuverable designs are often harder to fly, but benefit from greater aerobatic capabilities.

Flight controls allow pilots to control the collective and throttle (usually at the same time), the cyclic controls (pitch and roll), and the tail rotor (yaw). Controlling these in unison makes the helicopter perform all the maneuvers and stunts an aeroplane can do, and more besides.

Radio controlled helicopters can range in price from £50 to £3000.

An advanced form of RC helicopter flying is called 3D. During 3D flying, helicopters perform advanced aerobatics in a freestyle form. There are a number of 3D competitions around the world, two of the best known are the 3D Masters in the UK and the eXtreme Flight Championship (XFC) in the USA.

External links

• Radd's School of Rotary Flight - Learn to fly!
• RC helicopter links directory
• RCHelispot - An RC helicopter forum.
• Runryder - Another RC helicopter forum.
• Alan Szabo showing off his masterful piloting skills.

• Radio controlled airplanes
• Unmanned vehicles