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The tail rotor of a helicopter is a small rotor mounted on the tail of the aircraft. Its primary function is to counteract the torque reaction produced by the main lifting rotor. This counteraction allows the helicopter to maintain a stable heading and control its direction. Unlike the main rotor, which provides lift, the tail rotor's purpose is directional stability and control. Some helicopters utilize a "no tail rotor" system, employing a different method to manage torque.1234

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