Which hydraulic pressure is considered normal for the engine-driven pump?

The hydraulic pressure generated by the engine-driven pump in the T-6 aircraft is typically around 3000 psi, with a tolerance of plus or minus 120 psi. This operating pressure is crucial for the effective functioning of various flight control systems and other hydraulic components in the aircraft.

Maintaining this pressure ensures that hydraulic systems can operate efficiently, providing necessary force for operating flight controls such as ailerons, elevators, and rudders, as well as other systems reliant on hydraulic actuation. The defined range ensures that the hydraulic system remains within operational parameters, allowing for the necessary control and performance during flight.

Other options have pressure readings that are outside the normal operating range for the T-6's hydraulic pump, which indicates that they would not be considered proper operating pressures for the aircraft's systems. Understanding the correct hydraulic pressure is essential for ensuring maintenance and operational safety within the T-6 aircraft.