Mark 11 torpedo

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Mark 11 torpedo
US Navy Mark 11 Torpedo.tif
The Mark 11 torpedo at Newport, Rhode Island, torpedo factory, June 1925.
Type Anti-surface ship torpedo[1]
Place of origin  United States
Service history
In service 1926–1945
Used by  United States Navy
Wars World War II
Production history
Designer Washington Navy Yard[1]
Naval Torpedo Station
Designed 1926[1]
Manufacturer Naval Torpedo Station[1]
Variants Mod 1[2]
Weight 3511 pounds[1]
Length 271 inches[1]
Diameter 21 inches[1]

Effective firing range 6000-15,000 yards[1]
Warhead Mk 11, TNT[1]
Warhead weight 500 pounds[1]
Mk 3, Mod 1 contact exploder[1]

Engine Turbine[1]
Speed 27-46 knots[1]

The Mark 11 torpedo was the first American torpedo to be designed totally within the United States Navy without collaboration from industry.[1] It was developed by the Washington Navy Yard in Washington, D.C. and the Naval Torpedo Station in Newport, Rhode Island. The Mark 11 torpedo was also the first to feature a three-speed setting capability while tube-loaded: high at 46 knots, medium at 34 knots and low at 27 knots. Due to stability problems it was supplemented by the Mark 12 torpedo within two years, which had a 44-knot high speed setting.


  1. ^ a b c d e f g h i j k l m n o p "Torpedo History: Torpedo Mk11". Retrieved 13 June 2013. 
  2. ^ "United States of America Torpedoes Pre-World War II". Retrieved 24 June 2013.