After Engine Room

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Main diesel engines #3 and #4 extend from the upper deck to the hold deck below, with the #3 engine on the starboard side and the #4 engine on the port side. The engines are Fairbanks-Morse 10-cylinder opposed piston engines with an output of 1,600 shaft horsepower each. Each cylinder has two opposing 8-1/8-inch diameter pistons connected to a crankshaft at each end (top and bottom). The power from each engine is converted to electrical energy by the generators and was used to either charge the batteries or to power the main propulsion motors, or both.