USS Dolphin (SS-169)

USS Dolphin underway on the surface.
Class overview
Name	Dolphin -class submarine
Preceded by	Narwhal class
Succeeded by	Cachalot class
History
United States
Name	USS Dolphin
Namesake	Dolphin
Builder	Portsmouth Naval Shipyard, Kittery, Maine[1]
Laid down	14 June 1930[1]
Launched	6 March 1932[1]
Commissioned	1 June 1932[1]
Decommissioned	2 October 1945[1]
Stricken	24 October 1945[1]
Honors and awards	2 × battle stars
Fate	Sold for breaking up, 26 August 1946[1]
General characteristics
Class and type	V-7 (Dolphin)-class composite direct-drive diesel and diesel-electric submarine[2]
Displacement	Surfaced: 1,718 long tons (1,746 t)[3] Submerged: 2,240 long tons (2,276 t)[3]
Length	319 ft 3 in (97.31 m)[3]
Beam	27 ft 11 in (8.51 m)[3]
Propulsion	2 × BuEng-built, MAN-designed direct-drive main diesel engines, 1,750 hp (1,300 kW) each,[3][4] 2 BuEng MAN auxiliary diesel engines, 450 hp (340 kW) each, driving 300 kW (400 hp) electrical generators[3][4] 2 × 120-cell batteries[3] 2 × Electro-Dynamic electric motors[2][3] 2 shafts
Speed	17 knots (31 km/h; 20 mph) surfaced,[3] 8 kn (9.2 mph; 15 km/h) submerged;[3] 8.7 kn (10.0 mph; 16.1 km/h) submerged, service, 1939[3]
Range	4,900 nmi (9,100 km; 5,600 mi) at 10 kn (19 km/h; 12 mph),[3] 18,780 nmi (21,610 mi; 34,780 km) at 10 kn with fuel in main ballast tanks[3]
Endurance	10 hours at 5 kn (5.8 mph; 9.3 km/h)[3]
Test depth	250 ft (76 m)[2]
Complement	7 officers, 56 enlisted[3]
Armament	6 × 21 inch (533 mm) torpedo tubes (four forward, two aft), 18 torpedoes,[3] 1 × 4 inch (102 mm)/50 caliber deck gun[3]

USS Dolphin (SF-10/SC-3/SS-169), a submarine and one of the "V-boats", was the sixth ship of the United States Navy to be named for that aquatic mammal. She also bore the name V-7 and the classifications SF-10 and SC-3 prior to her commissioning. She was launched on 6 March 1932 by the Portsmouth Navy Yard, sponsored by Mrs. E.D. Toland, and commissioned on 1 June 1932.