The 110' submarine chaser was powered by three 220-hp Standard Motor Construction gasoline engines.

This plan diagram from the subchaser engine manual shows the arrangement of the engines: starboard and port engines forward, center engine aft. The small engine next to the center engine is the auxiliary, used to generate electrical power to charge the batteries and run the ventilation fans, and also used to supply compressed air for starting the engines.

subchaser engine room
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