USS Spearfish (SS-190)

History
Builder:	Electric Boat Company, Groton, Connecticut
Laid down:	9 September 1937
Launched:	29 October 1938
Commissioned:	19 July 1939
Decommissioned:	22 June 1946
Struck:	19 July 1946
Fate:	Sold for scrap, 19 May 1947
General characteristics
Class and type:	Sargo-class composite diesel-hydraulic and diesel-electric submarine
Displacement:	1,450 long tons (1,470 t) standard, surfaced 2,350 long tons (2,390 t) submerged
Length:	310 ft 6 in (94.64 m)
Beam:	26 ft 10 in (8.18 m)
Draft:	16 ft 7 1⁄2 in (5.067 m)
Propulsion:	4 × Hooven-Owens-Rentschler (H.O.R.) 9-cylinder diesel engines (two hydraulic-drive, two driving electrical generators) 2 × 126-cell Sargo batteries 4 × high-speed General Electric electric motors with reduction gears two shafts 5,500 shp (4.1 MW) surfaced 2,740 shp (2.0 MW) submerged
Speed:	21 knots (39 km/h) surfaced 8.75 knots (16 km/h) submerged
Range:	11,000 nautical miles (20,000 km) at 10 knots (19 km/h)
Endurance:	48 hours at 2 knots (3.7 km/h) submerged
Test depth:	250 ft (76 m)
Complement:	5 officers, 54 enlisted
Armament:	8 × 21-inch (533 mm) torpedo tubes  (four forward, four aft)  24 torpedoes 1 × 3-inch (76 mm) / 50 caliber deck gun four machine guns

USS Spearfish (SS-190), a Sargo-class submarine, was the only ship of the United States Navy to be named for the spearfish, any of several large, powerful, pelagic fishes of the genus Tetrapturus allied to the marlins and sailfishes.

Her keel was laid down on 9 September 1937 by the Electric Boat Company in Groton, Connecticut. She was launched on 29 October 1938 sponsored by Mrs. Lillian Spear, wife of Lawrence Y. Spear, president of Electric Boat Company. The boat was commissioned on 17 July 1939 with Lieutenant C.E. Tolman, Jr., in command.

Spearfish conducted sea trials off New London, Connecticut, and then held her shakedown cruise in the Guantanamo Bay area from 21 August to 3 October. She was overhauled at the Portsmouth Navy Yard in Kittery, Maine from 1 November 1939 to 2 February 1940. On 10 February, she set sail for the West Coast. After training operations in the San Diego, California, training area from 6 March to 1 April, the submarine sailed to Pearl Harbor.

Spearfish operated between Hawaii and the West Coast until 23 October 1941 when she departed Pearl Harbor and headed for Manila. She conducted training operations there from 8 November until the outbreak of war on 8 December (7 December east of the International Date Line), when she began her first war patrol. This mission took her into the South China Sea, near Saigon and Cam Ranh Bay, French Indochina, and off Tarakan and Balikpapan, Borneo. On 20 December, Spearfish encountered a Japanese submarine and made a submerged attack. She fired four torpedoes but all missed the target. She put into Surabaja, Java, on 29 January 1942 for refitting.

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