What is the role of the propeller governor in the T-54 aircraft?

The propeller governor in the T-54 aircraft plays a crucial role in controlling the propeller's revolutions per minute (RPM). It ensures the propeller operates within its optimal RPM range by continuously adjusting the pitch of the propeller blades. This adjustment responds to changes in the engine power output and flight conditions, allowing for efficient performance across various speeds and altitudes. By maintaining a stable RPM, the propeller governor contributes to both engine efficiency and flight safety, ensuring that the aircraft can respond appropriately to different flying demands.

The other functions mentioned, such as regulating fuel flow, adjusting hydraulic pressure, or managing electrical systems, are not the primary responsibilities of the propeller governor. Fuel flow regulation is typically handled by the fuel system, hydraulic pressure is managed by hydraulic systems, and electrical systems are overseen by the aircraft's electrical management systems. Thus, the function of the propeller governor is specifically focused on propeller RPM control, making it an essential component in the aircraft's overall performance.