The component that provides a constant resistance to tail rotor pedal input to prevent over-control is which?

• A. Pitch Change Link
• B. Hydraulic pump
• C. Landing light switch
• D. Yaw Brake

Answer: (D)

Pedal input to the tail rotor must be moderated so the helicopter doesn’t react too abruptly to small commands. A yaw brake provides a constant resistance to tail rotor pedal movement, which dampens the pedal action and limits how quickly yaw can change. This makes heading changes smoother and prevents over-control from minor inputs. The pitch change link is the part that translates pedal movement into tail rotor blade pitch changes, not a brake or damper; the hydraulic pump serves hydraulic systems, not a pedal-damping device; the landing light switch is unrelated to tail rotor control.