Which hydraulic system boosts tail rotor controls?

• A. System #1
• B. Hydraulic pump
• C. #2 System
• D. Yaw Brake

Answer: (C)

The tail rotor yaw controls are assisted by the hydraulic boost provided by the second hydraulic system. This system powers a servo in the tail rotor drive that amplifies the pilot’s pedal input, making it easier to control yaw and reducing the force needed at the cockpit pedals. The first hydraulic system may handle other flight controls, but it’s the second system that specifically provides the boost for tail-rotor control. The hydraulic pump supplies pressure to the system, but the boost comes from the second hydraulic system, not the pump itself or other components like the yaw brake.