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SS-489 USS Spinax
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Namesake. The spinax, one of the spiny sharks (dogfish sharks) scientifically known as Squalidal
Builder. Portsmouth Naval Shipyard, Kittery, ME
Laid down. 14 May 1945
Launched. 20 Nov 1945
Commissioned. 20 Sep 1946
Decommissioned. 11 Oct 1969
Stricken . 11 Oct 1969
Fate. Sold for scrap, 13 Jun 1972
Class and type. Tench-class diesel-electric submarine
Displacement:
1,570 tons (1,595 t) surfaced
2,414 tons (2,453 t) submerged
Length. 311 ft 8 in (95.00 m)
Beam. 27 ft 4 in (8.33 m)
Draft. 17 ft (5.2 m) maximum
Propulsion:
4 × Fairbanks-Morse Model 38D8-⅛ 10-cylinder opposed piston diesel engines driving electrical generators
2 × 126-cell Sargo batteries
2 × low-speed direct-drive Elliott electric motors
two propellers
5,400 shp (4.0 MW) surfaced
2,740 shp (2.0 MW) submerged
Speed. 20.25 knots (38 km/h) surfaced; 8.75 knots (16 km/h) submerged
Range. 11,000 nautical miles (20,000 km) surfaced at 10 knots (19 km/h)
Endurance. 48 hours at 2 knots (3.7 km/h) submerged; 75 days on patrol
Test depth. 400 ft (120 m)
Complement. 10 officers, 71 enlisted
Armament:
10 × 21-inch (533 mm) torpedo tubes, 6 forward, 4 aft)
28 torpedoes
1 × 5-inch (127 mm) / 25 caliber deck gun
Bofors 40 mm and Oerlikon 20 mm cannon
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