The term "lockout" on the Synchro-Self-Shifting (SSS) clutch system means that the _________.
Official USCG Answer & Rule Citation
Correct Answer: Option A — SSS clutch will not engage
The Synchro-Self-Shifting (SSS) clutch is an automatic overrunning clutch. The 'lockout' feature is a mechanical or hydraulic override that prevents the clutch from engaging, regardless of the relative speeds between the turbine and the shaft, effectively isolating the gas turbine from the reduction gear during specific maintenance or operational modes.
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