The Forward Engine Room houses #1 and #2 main engines. The USS LING has four Fairbanks-Morse, vertically opposed, 2-cycle diesel engines. Each engine generates 1600 BHP.  The main engines extend from below the platform deck into the engine space, with #1 main engine on the starboard side and #2 main engine on the port side.  Main generators, #1 and #2, built by General Electric, are connected to the main engines. Each generator is rated at 1,100 kW and was used to generate electricity to charge the batteries or to run the main propulsion motors (the engines are not directly connected to the propellers).

• Watertight doors
• Fresh water evaporators
• Boat’s main air supply and exhaust blowers with associated piping
• Main engine inboard exhaust valves and power operated outboard exhaust valve operating gear
• Engine air induction inboard valve
• Main engine fuel and lubricating oil purifiers
• Fuel and lube oil transfer pumps
• Back-up hydraulic system IMO pump

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