Mark 20 torpedo

The Mark 20 torpedo was a US torpedo designed in 1943 but never used in service.

Mark 20 torpedo
Type	Anti-surface ship torpedo[1]
Place of origin	United States
Service history
In service	never in service[1]
Production history
Designer	Naval Torpedo Station Newport[1] Electric Storage Battery Company General Electric
Designed	1943[1]
Manufacturer	General Electric
No. built	20[1]
Specifications
Mass	approx. 3100 pounds[1]
Length	246 inches[1]
Diameter	21 inches[1]
Effective firing range	3500 yards[1]
Warhead	Mk 20, TNT[1]
Warhead weight	500 pounds[1]
Detonation mechanism	none assigned[1]
Engine	Electric[1]
Maximum speed	33 knots[1]
Guidance system	Gyroscope[1]
Launch platform	Submarines[1]

Design was by Naval Torpedo Station Newport, the Electric Storage Battery Company and General Electric. This project was a continuation of the development of a submarine-launched, anti-surface ship torpedo originally designated Mark 2 in 1941 which was the second attempt to develop a torpedo of this type. The earlier effort, designated Mark 1, in post-World War I years (1919–1931), was terminated after the torpedo produced proved unsatisfactory in speed and range.[1]

The Mark 20 never progressed beyond the development stage due to the success of the Mark 18 torpedo, however, 20 units were produced by General Electric for testing purposes.

See also

• American 21 inch torpedo

References

1. "Torpedo History: Torpedo Mk20". Retrieved 18 June 2013.