How is the clutch shown in the attached illustration engaged? Illustration GT-0018
Official USCG Answer & Rule Citation
Correct Answer: Option B — Clutch engages automatically when input shaft flange is rotating faster than the output assembly.
The SSS clutch utilizes a helical spline mechanism that engages automatically when the input shaft speed exceeds the output shaft speed. This overrunning capability allows for seamless power transmission from the gas turbine to the reduction gear once the turbine reaches a higher rotational velocity than the output assembly.
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