June
30
Helicopter Engines
An engine is used to create the force needed to lift the aircraft and its passengers and cargo. Reciprocating gasoline and gas turbine engines are the most common types used on rc helicopter.
All rc helicopters need a way to counteract the torque produced by the main rotor. If this were not done, the rotor would turn in one direction, and the fuselage would turn in the opposite direction. Usually, a small tail rotor is used to produce a sideways thrust that prevents the fuselage from rotating.
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