What is the purpose of the rudder pedals in the TH-73A?

• A. To control engine throttle settings
• B. To manage yaw by controlling the tail rotor's pitch
• C. To adjust the cockpit heating
• D. To operate the landing gear

Answer: (B)

The rudder pedals in the TH-73A are primarily designed to manage yaw by controlling the tail rotor's pitch. The yaw control is essential for maintaining directional stability and control during flight. When the pilot presses on the rudder pedals, they alter the pitch of the tail rotor blades, which generates lateral thrust and helps the helicopter turn left or right. This control is crucial for coordinated turns and maintaining flight stability, especially in scenarios where bank angles change.

In contrast, the other functions mentioned in the incorrect options do not relate to the role of the rudder pedals. The engine throttle settings are managed through collective pitch control, while cockpit heating and landing gear operation are handled by separate systems and controls altogether. This distinction highlights the specialized function of the rudder pedals in helicopter operation, emphasizing their role in controlling yaw through the tail rotor rather than involving other systems or controls in the aircraft.