There have been a number of 21-inch torpedoes in service with the United States. These have been used on ships and submarines of the U.S. Navy. American 21-inch torpedoes are 533 millimeters in diameter.
Ship classes that carried 21-inch torpedoes include:
Allen M. Sumner-class destroyers Atlanta-class cruisers Bagley-class destroyers Balao-class submarines Barbel-class submarines Barracuda-class submarines Benham-class destroyers Benjamin Franklin-class submarines Benson-class destroyers Cachalot-class submarines Caldwell-class destroyers Cassin-class destroyers Chester-class cruisers Clemson-class destroyers Colorado-class battleships Connecticut-class battleships Dealey-class destroyer escorts Ethan Allen-class submarines Farragut-class destroyers Forrest Sherman-class destroyers Fletcher-class destroyers Gato-class submarines Gearing-class destroyers George Washington-class submarines Gleaves-class destroyers Glenard P. Lipscomb-class submarine Grayback-class submarines Gridley-class destroyers Halibut-class submarine James Madison-class submarines John C. Butler-class destroyer escorts Lafayette-class submarines Lexington-class battlecruisers - canceled Los Angeles-class submarines Mahan-class destroyers Mitscher-class destroyer leaders Narwhal-class submarine Nautilus-class submarine Norfolk-class destroyer leader O'Brien-class destroyers Ohio-class submarines Omaha-class cruisers Permit-class submarines Porter-class destroyers PT boats R-class submarines Rudderow-class destroyer escorts S-class submarines Sailfish-class submarines Sampson-class destroyers Sargo-class submarines Seawolf-class submarine (1957) Seawolf-class submarines (1997) Sims-class destroyers Skate-class submarines Skipjack-class submarines Somers-class destroyers South Dakota-class battleships - canceled Sturgeon-class submarines T-1-class submarines Tambor-class submarines Tang-class submarines Tench-class submarines Tennessee-class cruisers Tucker-class destroyers Tullibee-class submarine V-boat submarines Virginia-class battleships Virginia-class submarines Wickes-class destroyers
NameCountryIn service datePlatform / targetDimensionsWarheadPropulsionPerformanceMark 1 (Bliss-Leavitt)Friedman, p. 342 1904–1922 Surface / Surface Diameter: Length: Weight: Guncotton Single vertical turbine wheel Speed: Range: Mark 2 (Bliss-Leavitt) 1905–1922 Surface / Surface Diameter: Length: Weight: Guncotton Turbine (contra-rotating) Speed: Range: Mark 3 (Bliss-Leavitt) 1906–1922 Surface / Surface Diameter: Length: Weight: Guncotton Turbine (contra-rotating) Speed: Range: Mark 8 (Bliss-Leavitt) 1911–1945 Surface / Surface Diameter: Length: Weight: Mod 4: TNT Turbine Speed: Range: Mark 9 (Bliss-Leavitt) 1915–1945 Surface & submarine / Surface Diameter: Length: Weight: Mk.9:TNT Turbine Speed: Range: Mark 10 1915–1945 Submarine / Surface Diameter: Length: Weight: Mod.3: TNT Steam turbine Speed: Range: Mark 11 1926–1945 Surface / Surface Diameter: Length: Weight: Mk.11: TNT Turbine Low: Range: Medium: Range: High: Range: Mark 12 1928–1945 Surface / Surface Diameter: Length:Weight: Mk.11TNT Turbine Low: Range: Medium: Range: High: Range: Mark 14 1938 Submarine / Surface Diameter: Length: Weight: Mod.0: TNTMod.6: Torpex Turbine Mod.0:Low: Range: Mod.3:Low: Range: High: Range: Mark 15 1938–1956 Surface / Surface Diameter: Length: Weight: Mod 0: TNT Mod.3: TNT or HBX Turbine Mod.0:Low: Range: Medium: Range: High: Range: Mod.3:Low: Range :Medium: Range: High: Range: Mark 16 1943–1975 Submarine / Surface Diameter: Length: Weight: Mod.1: Mod.3: Mod.8: Mk.16 Mod.7 Mod.0: Torpex
Mod.1 and 3: Torpex or HBX (later used HBX-3) Torpex (later used HBX)
Mod.8: HBX Turbine Mod.0:Speed: Range: Mod.1:Range:
Mod.3:Range: Mod.8: same range as Mod.1 or Mod.3Mark 17 1944–1950 Surface / Surface Diameter: Length: Weight: Mod.3: HBX Turbine Speed: Range :Mark 18 1943–1950 Submarine / Surface Diameter: Length:Weight: Mod.3 : HBX Electric Speed: Range:Mark 19 Submarine / Surface Diameter: Length: Weight: Mk.20Torpex Electric, secondary battery Speed: Range: Mark 20 Submarine / Surface Diameter: Length: Weight: Mk.20TNT Electric motor Speed: Range: Mark 22 Submarine / Surface Diameter: Length: Weight: HBX Electric Speed :Range :Mark 23 1943–1946 Submarine / Surface Diameter: Length: Weight: Mod.6: HBX Turbine Speed: Range : Mark 26 Submarine / Surface Diameter:Length: Weight: Mk.26: HBX Electric, seawater battery Speed: Range: Mark 28 1944–1960 Submarine / Surface Diameter: Length: Weight: Mod.2: HBX Electric Speed: Range: Mark 29 Submarine / Surface Diameter: Length: Weight: Mod.2: HBX Electric Low: Range: High: Range:Mark 31 Surface / Surface Diameter: Length: Weight: Mk.31:HBX Electric Speed: Range: Mark 33 Mod 0 Submarine & Aircraft / Submarine & surface Diameter: Length: Weight: HBX Electric Low: Range: High: Range: Mark 35 1949–1960 Surface / Surface Diameter: Length: Weight: Mod.2 or 3: HBX Electric, primary seawater battery Speed: Range: Mark 36 Mod 0 1949–1960 Surface / Surface Diameter: Length: Weight: Mk.36: HBX-1 Electric Speed: Range: Mark 41 Mod 0 1950–1959 Aircraft / Submarine Diameter: Length: Weight: Mk.41HBX Electric, seawater battery Speed: Range: Mark 45 Mod 0 1963–1976 Submarine / Submarine & surface Diameter: Length: Weight: 11 kiloton W34 nuclear warhead Electric Speed: Range: Mark 45 Mod 1 1976-? Submarine / Submarine & surface Diameter: Length: Weight: conventional Electric Speed: Range: Mark 48 1972–present Submarine / Submarine & surface Diameter: 650 lbs Piston engine, pump jet
See also American 18-inch torpedo
Citations
Bibliography
External links Torpedo history, part 2, Naval History & Heritage Command Navweaps links: US Torpedoes main page, Pre-World War II, Post-World War II