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Mark 27 torpedo
Type Acoustic torpedo[1]
Place of origin United States
Service history
In service 1943-1946[1]
Used by  United States Navy
Wars World War II
Production history
Designer Bell Telephone Laboratories
Designed 1943[1]
Manufacturer Western Electric
Number built 1000[1]
Variants Mark 27 Mod 4 torpedo
Weight 720 pounds[1]
Length 90 inches[1]
Diameter 19 inches (21-inch guide rails)[1]

Effective range 5000 yards (approx. 12 minutes search duration)[1]
Warhead Mk 27 Mod 0[1]
Mk 11 Mod 2 contact exploder

Engine Electric[1]
Speed 12 knots[1]

The Mark 27 torpedo was the first of the United States Navy 19-inch (48-cm) submarine-launched torpedoes.[2] This electrically-propelled torpedo was 125 inches (3.175 m) long and weighed 1174 pounds (534 kg).[2] The torpedo employed a passive acoustic guidance system and was intended for both submarine and surface targets.[2] Nicknamed "Cutie" [3] by submarine crews, the Mark 27 entered service in 1943. The torpedo was classified as obsolete in the 1960s.[2]

The Mark 27 was essentially a Mark 24 mine which had been modified for submarine launching in a 21-inch submerged torpedo tube by the addition of wood guides mounted on the torpedo's outer shell.[1]

See also[edit | edit source]

Notes[edit | edit source]

References[edit | edit source]

  • Kurak, Steve (September 1966). "The U. S. Navy's Torpedo Inventory". United States Naval Institute Proceedings. 

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