Tench Class Submarine: Laid down, 1 April 1944, at Portsmouth Navy Yard, Kittery, ME.; Launched, 7 July 1944; Commissioned USS Tench (SS-417), 6 October 1944; Decommissioned in March 1946; Laid up in the Atlantic Reserve Fleet; Converted to a Guppy IA submarine and recommissioned, 1 October 1950, at Norfolk, VA.; Reclassified Auxiliary Submarine (AGSS-417), 1 October 1969; Decommissioned, 8 May 1970, at Philadelphia Naval Shipyard, Philadelphia, PA.; Laid up in the Atlantic Reserve Fleet, Philadelphia Group; Struck from the Naval Register, 16 August 1973; Transferred (sold) under terms of the Security Assistance Program, to Peru, 7 September 1976; Final Disposition, sold for stripping only to Peru for $ 81,600.00. Tench was awarded three battle stars for her World War II service.
Specifications: Displacement, Surfaced: 1,570 t., Submerged: 2,416 t.; Length 311′ 8″; Beam 27′ 2″; Draft 15′ 3″; Speed, Surfaced 20.25 kts, Submerged 8.75 kts; Cruising Range, 11,000 miles surfaced at 10kts; Submerged Endurance, 48 hours at 2kts; Operating Depth, 400 ft; Complement 6 Officers 60 Enlisted; Armament, ten 21″ torpedo tubes, six forward, four aft, 24 torpedoes, one 5″/25 deck gun, one 40mm gun, one 20mm gun, two .50 cal. machine guns; Patrol Endurance 75 days; Propulsion, diesel-electric reduction gear with four Fairbanks Morse main generator diesel engines, 5,400 hp, Fuel Capacity, 113,510 gals, two General Electric main motors, 2,740 hp, two 126-cell main storage batteries, two propellers.
