Radio controlled helicopter
A radio-controlled helicopter (sometimes referred to as an RC helicopter) is a model aircraft that differs from a radio-controlled aeroplane in terms of manufacturing, aerodynamics, and flying instruction. There are many basic designs of RC helicopters, some of which are more nimble than others (such as those having collective pitch control). The more manoeuvrable designs are more difficult to fly, but they have better aerobatic capabilities. 1st Pilots may control the collective (or throttle on fixed pitch helicopters), the cyclic controls (pitch and roll), and the tail rotor using flight controls (yaw). [2] By controlling these in unison, the helicopter can perform the same manoeuvres as full-sized helicopters, such as hovering and backwards flight, as well as many others that full-sized helicopters can't, such as inverted flight (where collective pitch control provides negative blade pitch to keep the heli up inverted, and pitch/yaw controls must be reversed by the pilot). [thr...
