Mark 39 torpedo

The Mark 39 torpedo was the first homing torpedo in United States Navy service to use a trailing wire for mid-course guidance through the submarine's fire control system. The Mark 39 was a Mark 27 Mod 4 torpedo converted for development of wire guidance techniques, which were eventually incorporated into the Mark 37 Mod 1 and the Mark 45. Due to this development, the Mark 39 was considered obsolete and the remaining inventory was scrapped.[1]

Mark 39 torpedo
TypeASW Homing torpedo[1]
Place of originUnited States
Service history
In service1946-1956[1]
Used byUnited States Navy
Production history
DesignerVitro Corporation[1]
Ordnance Research Laboratory, Pennsylvania State University
Designed1946[1]
ManufacturerPhilco[1]
Specifications
Mass1725 pounds[1]
Length133 inches[1]
Diameter19 inches[1]
Effective firing range1300 yards[1]
(26-minute search duration)
WarheadMk 39 Mod 0, HBX[1]
Warhead weight130 pounds[1]
Detonation
mechanism
Mk 19 Mod 10 contact exploder[1]
EngineElectric[1]
Maximum speed 15.5 knots[1]
Guidance
system
Wire[1]
Launch
platform
Submarines[1]

References
  1. Jolie, E.W. (15 September 1978). "A Brief History of US Navy Torpedo Development: Torpedo Mine Mk39". Retrieved 21 June 2013.

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