Mark 39 torpedo

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

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.

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