SS-426 USS Tusk

Namesake. The tusk, an alternate name for the cusk, a large edible saltwater fish related to the cod
Builder. Cramp Shipbuilding Company, Philadelphia, PA
Laid down. 23 Aug 1943
Launched. 8 Jul 1945
Commissioned. 11 Apr 1946
Decommissioned. 18 Oct 1973
Stricken . 18 Oct 1973
Fate. Transferred to the Republic of China, 18 Oct 1973
Class and type. Balao-class diesel-electric submarine
Displacement:
1,526 long tons (1,550 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. 16 ft 10 in (5.13 m) maximum
Propulsion:
4 × Fairbanks-Morse Model 38D8-⅛ 10-cylinder opposed piston diesel engines driving electrical generators
2 × 126-cell Sargo batteries
2 × low-speed direct-drive Elliott electric motors
two propellers
5,400 shp (4.0 MW) surfaced
2,740 shp (2.0 MW) submerged
Speed. 20.25 knots (37.50 km/h) surfaced; 8.75 knots (16.21 km/h) submerged
Range 11,000 nautical miles (20,000 km) surfaced at 10 knots (19 km/h)
Endurance. 48 hours at 2 knots (3.7 km/h) submerged; 75 days on patrol
Test depth. 400 feet (120 m)
Complement. 10 officers, 70–71 enlisted
Armament:
10 × 21-inch (533 mm) torpedo tubes
6 forward, 4 aft
24 torpedoes
1 × 5-inch (127 mm) / 25 caliber deck gun
Bofors 40 mm and Oerlikon 20 mm cannon

General characteristics (Guppy II)
Displacement:
1,870 long tons (1,900 t) surfaced
2,440 long tons (2,480 t) submerged
Length. 307 ft (94 m)
Beam. 27 ft 4 in (8.33 m)
Draft. 17 ft (5.2 m)
Propulsion:
Snorkel added
Batteries upgraded to GUPPY type, capacity expanded to 504 cells (1 × 184 cell, 1 × 68 cell, and 2 × 126 cell batteries)
Speed. 18.0 knots (33.3 km/h) maximum, 13.5 knots (25.0 km/h) cruising (Surfaced); 16.0 knots (29.6 km/h) for ½ hour, 9.0 knots (16.7 km/h) snorkeling, 3.5 knots (6.5 km/h) cruising (Submerged)
Range. 15,000 nautical miles (28,000 km) surfaced at 11 knots (20 km/h)
Endurance. 48 hours at 4 knots (7.4 km/h) submerged
Complement. 9–10 officers, 5 petty officers, 70 enlisted men
Sensors and processing systems:
WFA active sonar
JT passive sonar
Mk 106 torpedo fire control system
Armament:
10 × 21 inch (533 mm) torpedo tubes (six forward, four aft)
all guns removed