USS Haddock (SS-231)

History
United States
Builder	Portsmouth Naval Shipyard, Kittery, Maine
Laid down	31 March 1941
Launched	20 October 1941
Sponsored by	Mrs. William H. Allen
Commissioned	14 March 1942
Decommissioned	12 February 1947
Stricken	1 June 1960
Fate	Sold for scrap, 23 August 1960
General characteristics
Class & type	Gato-class diesel-electric submarine
Displacement	1,525 long tons (1,549 t) surfaced; 2,424 long tons (2,463 t) submerged;
Length	311 ft 9 in (95.02 m)
Beam	27 ft 3 in (8.31 m)
Draft	17 ft (5.2 m) maximum
Propulsion	4 × Fairbanks-Morse Model 38D8-1⁄8 9-cylinder opposed-piston diesel engines driving electrical generators; 2 × 126-cell Sargo batteries; 4 × high-speed Elliott electric motors with reduction gears; 2 × propellers; 5,400 shp (4.0 MW) surfaced; 2,740 shp (2.04 MW) submerged;
Speed	21 knots (39 km/h) surfaced; 9 kn (17 km/h) submerged;
Range	11,000 nmi (20,000 km) surfaced at 10 kn (19 km/h)
Endurance	48 hours at 2 kn (4 km/h) submerged; 75 days on patrol;
Test depth	300 ft (90 m)
Complement	6 officers, 54 enlisted
Armament	10 × 21-inch (533 mm) torpedo tubes; 6 forward, 4 aft; 24 torpedoes; 1 × 3-inch (76 mm) / 50 caliber deck gun; Bofors 40 mm and Oerlikon 20 mm cannon;

USS Haddock (SS-231), a Gato-class submarine, was the second submarine of the United States Navy to be named for the haddock, a small edible Atlantic fish related to the cod. A previous submarine had been named Haddock (SS-32), but was renamed K-1 prior to her launching, so Haddock (SS-231) was the first to actually bear the name.