The APU accumulator provides hydraulic charge to which component?

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Prepare for the Utility Helicopter 60 Black Hawk UH-60S Exam. Utilize flashcards and multiple choice questions; each question includes hints and explanations. Gear up for success!

Multiple Choice

The APU accumulator provides hydraulic charge to which component?

Explanation:
The APU accumulator is dedicated to cranking the APU itself. Its hydraulic charge powers the APU start motor, which spins the APU turbine long enough for ignition and the APU to come online. Once the APU is running, the helicopter’s main hydraulic systems (tail rotor servo, primary hydraulic pump, landing gear actuators) are normally supplied by the engine-driven or secondary pumps, not by the APU accumulator. So the hydraulic pressure stored in the accumulator is specifically used to start the APU.

The APU accumulator is dedicated to cranking the APU itself. Its hydraulic charge powers the APU start motor, which spins the APU turbine long enough for ignition and the APU to come online. Once the APU is running, the helicopter’s main hydraulic systems (tail rotor servo, primary hydraulic pump, landing gear actuators) are normally supplied by the engine-driven or secondary pumps, not by the APU accumulator. So the hydraulic pressure stored in the accumulator is specifically used to start the APU.

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