United States (retired)
Operators
1944
Commissioned
United States
National Origin
81
Complement
Tench-class
Hull Class
29
Number-in-Class
USS Tench (SS-417); USS Thornback (SS-418); USS Tigrone (SS-419); USS Tirante (SS-420); USS Trutta (SS-421); USS Toro (SS-422); USS Torsk (SS-423); USS Quillback (SS-424); USS Corsair (SS-435); USS Argonaut (SS-475); USS Runner (SS-476); USS Conger (SS-477); USS Cutlass (SS-478); USS Diablo (SS-479); USS Medregal (SS-480); USS Requin (SS-481); USS Irex (SS-482); USS Sea Leopard (SS-483); USS Odax (SS-484); USS Sirago (SS-485); USS Pomodon (SS-486); USS Remora (SS-487); USS Sarda (SS-488); USS Spinax (SS-489); USS Volador (SS-490); USS Amberjack (SS-522); USS Grampus (SS-523); USS Pickerel (SS-524); USS Grenadier (SS-525); USS Unicorn (SS-436); USS Walrus (SS-437); USS Pompano (SS-491); USS Grayling (SS-492); USS Needlefish (SS-493); USS Sculpin (SS-494); SS-495 through SS-515; USS Wahoo (SS-437); SS-517; USS Wahoo (SS-518); SS-519 through SS-521; USS Dorado (); USS Comber (); USS Sea Panther (); USS Tiburon (); SS-537 through SS-562; SS-551 through SS-562
Ships-in-Class
Submerged Attack
Traveling under the surface to search, track, and / or engage or reconnoiter areas.
Maritime Patrol
Active patroling of vital waterways and maritime areas; can also serve as local deterrence against airborne and seaborne threats.
Fleet Support
Serving in support (either firepower or material) of the main surface fleet in Blue Water environments.
311.7 feet
(95.01 meters)
Length
27.3 feet
(8.32 meters)
Beam
17.0 feet
(5.18 meters)
Draught
1,600
tons
Displacement
2,455
tons
Displacement (Submerged)
As Built: 4 x Fairbanks-Morse Model 38D8 10-cylinder opposed diesel engines with electrical generators developing 5,400 horsepower; 2 x 126-cell Sargo battery packs; 2 x General Electric electric motors delivering 2,740 horsepower.
Propulsion
20.3 knots
(23.3 mph)
Surface Speed
8.8 knots
(10.1 mph)
Submerged Speed
10,002 nm
(11,510 miles | 18,524 km)
Range
1 knot = 1.15 mph; 1 nm = 1.15 mile; 1 nm = 1.85 km
As Built:
6 x 21" (533mm) torpedo tubes in the bow.
4 x 21" (533mm) torpedo tubes in the stern.
24 x Torpedo reloads.
1 x 5" (130mm) /25 caliber deck gun.
1 x 40mm Bofors Anti-Aircraft (AA) gun.
2 x .50 cal (12.7mm) Browning M2 Heavy Machine Guns (HMGs) (for AA defense).