How is the amount of thrust produced by the tail rotor controlled?

The amount of thrust produced by the tail rotor is primarily controlled by manipulating the foot pedals. In a helicopter, the tail rotor serves to counteract the torque effect created by the main rotor; this is essential for maintaining directional control. When the pilot presses one of the foot pedals, it changes the pitch of the tail rotor blades, effectively increasing or decreasing the thrust produced by the tail rotor. This adjustment allows the pilot to control the helicopter's yaw movement, enabling precise directional turns and stability during flight.

For context, while adjusting the main rotor pitch can influence the overall performance and lift of the helicopter, it does not directly control the tail rotor's thrust. Altering engine power affects all rotors but does not specifically adjust the tail rotor thrust directly which is necessary for precise yaw control. Similarly, changing rotor speed impacts overall lift and performance but is not the primary method for controlling the tail rotor's thrust in everyday flying maneuvers. Thus, the manipulation of foot pedals is the most direct and effective means for a pilot to control the tail rotor thrust.