PPL(H) AGK Helicopter Practice Questions - UK CAA PPL(H) Theory - Aircraft General Knowledge Helicopter Exam

What is the primary function of a helicopter freewheel unit (overrunning clutch)?

To disconnect the rotor system from the engine in the event of an engine failure or during autorotation To lock the main rotor blades during high-speed engine start To automatically adjust tail rotor pitch in response to main rotor torque changes To vary the engine idle speed during ground warming up

Correct Answer:

To disconnect the rotor system from the engine in the event of an engine failure or during autorotation

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