4 × high-speed Elliott electric motors with reduction gears[4]
two propellers [4]
5,400 shp (4.0 MW) surfaced[4]
2,740 shp (2.0 MW) submerged[4]
Speed
20.25 knots (38 km/h) surfaced[2]
8.75 knots (16 km/h) submerged[2]
Range
11,000 nautical miles (20,000 km) surfaced at 10 knots (19 km/h)[2]
Endurance
48 hours at 2 knots (3.7 km/h) submerged[2]
75 days on patrol
Test depth
400 ft (120 m)[2]
Complement
10 officers, 70–71 enlisted[2]
Armament
10 × 21-inch (533 mm) torpedo tubes
6 forward, 4 aft
24 torpedoes[6]
1 × 5-inch (127 mm) / 25 caliber deck gun[6]
Bofors 40 mm and Oerlikon 20 mm cannon
USS Piranha (SS-389/AGSS-389), a Balao-class submarine, was the only ship of the United States Navy to be named for the piranha. Piranha conducted six war patrols during World War II, receiving five battle stars. She was scrapped in 1970.
^ abcdefgFriedman, Norman (1995). U.S. Submarines Through 1945: An Illustrated Design History. Annapolis, Maryland: United States Naval Institute. pp. 285–304. ISBN 1-55750-263-3.
^ abcdefU.S. Submarines Through 1945 pp. 305-311
^ abcdefBauer, K. Jack; Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775-1990: Major Combatants. Westport, Connecticut: Greenwood Press. pp. 275–280. ISBN 0-313-26202-0.
^ abcdeBauer, K. Jack; Roberts, Stephen S. (1991). Register of Ships of the U.S. Navy, 1775–1990: Major Combatants. Westport, Connecticut: Greenwood Press. pp. 275–280. ISBN 978-0-313-26202-9.
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of submarine construction. Sterlet and USS Pomfret (SS-391) were christened in the building basin and USSPiranha (SS-389) was christened and launched from...