Final answer:
The amount of thrust produced by the tail rotor is controlled by adjusting the pitch of the tail rotor blades. This pitch control is typically manipulated by the pilot using the anti-torque pedals in a helicopter.
Step-by-step explanation:
In a helicopter, the tail rotor serves a crucial role in counteracting the torque generated by the main rotor. As the main rotor spins, it imparts a torque to the helicopter body in the opposite direction. Without a counteracting force, the helicopter would continuously spin in the opposite direction of the main rotor.
The tail rotor produces thrust in the horizontal plane to counteract this torque and maintain the helicopter's heading.
The pitch of the tail rotor blades determines the amount of thrust it generates. When the pilot presses on the anti-torque pedals, it adjusts the pitch of the tail rotor blades. Increasing the pitch generates more thrust, while decreasing the pitch reduces thrust.
This control allows the pilot to balance the torque from the main rotor and maintain control over the helicopter's orientation. The fine adjustments in pitch made by the pilot through the pedals ensure precise control of the tail rotor and, consequently, the heading of the helicopter.
In summary, the amount of thrust produced by the tail rotor is controlled by the pitch of the tail rotor blades, which is manipulated by the pilot using the anti-torque pedals. This pitch control mechanism is essential for maintaining the helicopter's stability and heading during flight.