What is the primary function of the hydraulic system in the TH-73A?

• A. Lowering landing gear
• B. Controlling flight control systems
• C. Providing fuel pressure
• D. Cooling the engine

Answer: (B)

The primary function of the hydraulic system in the TH-73A is to control flight control systems. This system plays a crucial role in the operation of various flight controls, including the cyclic, collective, and anti-torque pedals. These controls are essential for maneuvering the aircraft and maintaining stability during flight.

The hydraulic system works by using pressurized fluid to enhance the pilot's input, allowing for more efficient and responsive handling of the aircraft. It reduces the physical effort required by the pilot to operate these controls, thus improving overall flight performance and safety. Having a reliable hydraulic system ensures that the aircraft can respond effectively to the pilot's commands, which is vital for both training and operational missions in naval aviation.

Other functions, such as lowering the landing gear, while related to the hydraulic system, are secondary in importance compared to the primary role of controlling flight dynamics. Fuel pressure and engine cooling are managed by separate systems within the aircraft, which do not involve the hydraulic system directly.