SPECIFICATIONS

Overall Length x Maximum Breadth:    311 ft. 9 in.  x  27 ft. 3 in.
Displacement:  2,010-2,075 tons Surfaced;  2,415 tons Submerged.
Operating Depth:  400 feet.
Watertight Compartments:  8 plus conning tower.
Pressure Hull Plating:  approx. 7/8 in. high tensile steel.
Torpedo Tubes:  6 bow; 4 stern;  max load = 24
Deck Guns:  1 4-in./50-cal. or 1 5-in./25-cal.
Maximum Speed:  20.25 knots surfaced;  8.75 knots submerged.
Cruising Range:  11,000 miles surfaced at 10 knots.
Submerged Endurance:  48 hours at 2 knots.
Fuel Capacity:  116,000 gallons.
Patrol Endurance:  75 days.
Propulsion:  Diesel-electric reduction gear with 4 main generator engines,
             1 aux. generator.
             4 main motors with 2,740 shaft horse power.
             2 126-cell main storage batteries.


CONSTRUCTION:

Number of boats:  256 boats ordered between 1942 and 1945. 119 completed.
Builders:  Portsmouth (SS 285-291, 308-312, 381-410);  Manitowoc (SS 361-369);
           Electric Boat (SS 313-352, 370-378);  Mare Island (SS 304-307; 411-416);
           Cramp (292-295; 297-303)







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