Mark 45 torpedo on display in Aiea, Hawaii, United States
Type
Nuclear antisubmarine torpedo[1]
Place of origin
United States
Service history
In service
1959–1976[1][2]
Used by
United States Navy
Production history
Designer
Applied Research Laboratory, University of Washington[1] Westinghouse Electric
Designed
1957[1]
Manufacturer
Westinghouse Electric[1]
Produced
1959[1]
No. built
600
Variants
Mark 45 Mod 1[1] Mark 45 Mod 2
Specifications
Mass
2,400 pounds (1,100 kg)
Length
227 inches (580 cm)
Diameter
19 inches (48 cm)
Warhead
W34 nuclear warhead
Blast yield
11 kilotons
Engine
Electric[1]
Operational range
5–8 miles (8–13 km)
Maximum speed
40 knots
Guidance system
Gyroscope and wire
Launch platform
Submarines[1]
The Mark 45 anti-submarine torpedo, a.k.a. ASTOR, was a submarine-launched wire-guided nuclear torpedo designed by the United States Navy for use against high-speed, deep-diving, enemy submarines. This was one of several weapons recommended for implementation by Project Nobska, a 1956 summer study on submarine warfare.[3] The 19-inch (480 mm)-diameter torpedo was fitted with a W34 nuclear warhead. The need to maintain direct control over the warhead meant that a wire connection had to be maintained between the torpedo and submarine until detonation. Wire guidance systems were piggybacked onto this cable, and the torpedo had no homing capability. The design was completed in 1960, and 600 torpedoes were built between 1963 and 1976, when ASTOR was replaced by the Mark 48 torpedo.
^ abcdefghiJolie, E.W. (15 September 1978). "A Brief History of US Navy Torpedo Development: Torpedo Mine Mk45". Retrieved 24 June 2013.
^Cite error: The named reference NavWeaps1 was invoked but never defined (see the help page).
^Friedman, Norman (1994). U.S. Submarines Since 1945: An Illustrated Design History. Annapolis, Maryland: Naval Institute Press. pp. 109–114. ISBN 1-55750-260-9.
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