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Tench-class submarine

Class of ship
Tench-class submarines were a type of submarine built for the United States Navy between 1944 and 1951. They were an improvement over the Gato and Balao classes, only about 35 to 40 tons larger, but more strongly built and with a slightly improved... Wikipedia
Active: 1
Armament: 10 × 21-inch (533 mm) torpedo tubes: 6 forward, 4 aft) 28 torpedoes Bofors 40 mm and Oerlikon 20 mm cannon;
Built: 1944–1951
Endurance: : 48 hours at 2 knots (3.7 km/h) submerged; 75 days on patrol;
Length: 311 ft 8 in – 311 ft 9 in (95.0 m)
Lost: 1
Test depth: 400 ft (120 m)