Remote Control Coaxial Helicopter
Coaxial helicopters are guided an ideal introduction to the helicopter Ler RC flying stability and slow responsiveness. This makes them much easier to control than the traditional single rotor / tail rotor counterparts. With a little practice, they are stable enough to be within the flow in a confined space may be your
practice anywhere.
A classic rc helicopter has a rotor single rotor and a tail to yaw control to know the direction in which the helicopter directs. A coaxial helicopter has two rotors, however, on top of the helicopter and tail rotor pitch. The rotation of the rotor in opposite directions the torque generated by each rotor cancels the other. This results in a stable hover. Yaw is controlled by adjusting the speed of one the two rotors. Coaxial helicopters are available in 2, 3 and 4 channel versions. We recommend a 4 channel coaxial helicopter that provides for height controls bank, throttle, and yaw.
Coaxial helicopters have a number of advantge and disadvantages.
Benefits are
– Easier installation because they do not require a gyro.
– Less expensive since less electronics is needed.
– Very stable in hover, which makes them ideal for practical guidance.
– Most are available ready to fly requiring a building or facility.
– In general, they are very hard and can survive crashes.
Disadvantages
– The engine must also be equal if the couple generated by each rotor is similar.
– Very slow and unresponsive. Getting them to switch hover may require quite violent movements stick!
– In extreme cyclical throws can hit the rotors cause an accident
Generally coaxial helicopters radio controlled are small in size ranging from 3 inches to the rotor span of about 15 inches. While some coaxial helicopters can be seen as nothing more than some of the toys better 4 channel models from companies such as E-Flite ESky and are an excellent introduction to the world of radio controlled flying helicopter.
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See the radio controlled helicopter section on In Miniature for more information about radio controlled model helicopters
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