Mark 24 mine
Acoustic torpedo / From Wikipedia, the free encyclopedia
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The Mark 24 mine (also known as FIDO or Fido) is an air-dropped anti-submarine (ASW) acoustic torpedo developed by the United States during World War II; it was called a mine to conceal its capabilities. The torpedo entered service with the Allies in March 1943; the United States Navy (USN) used it until 1948. Approximately 4,000 were produced. Of the 340 deployed during the war, 204 were fired, sinking 37 and damaging 18 Axis submarines.
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Quick Facts Type, Place of origin ...
Mark 24 | |
---|---|
Type | Acoustic torpedo |
Place of origin | United States, Canada, United Kingdom |
Service history | |
In service | 1942–1948[1] |
Used by | |
Wars | World War II |
Production history | |
Designer | Western Electric Company Bell Telephone Laboratories Harvard University Underwater Sound Laboratory[1] |
Designed | 1942[1] |
Manufacturer | General Electric Company[1] Western Electric Company |
No. built | 4000[2] |
Specifications | |
Mass | 680 pounds (310 kg)[1] |
Length | 84 inches (2.1 m)[1] |
Diameter | 19 inches (48 cm)[1] |
Effective firing range | 4,000 yards (3.7 km) (10 minutes search duration)[1] |
Warhead | HBX[1] |
Warhead weight | 92 pounds (42 kg)[1] |
Detonation mechanism | Mk 142 fuze, contact exploder[1] |
Engine | Electric, secondary battery[1] |
Maximum speed | 12 knots (22 km/h)[1] |
Guidance system | preset circle search, passive acoustic[1] |
Launch platform | Aircraft |
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