W80 (nuclear warhead)

The W80 is a low to intermediate yield two-stage thermonuclear warhead deployed by the U.S. enduring stockpile with a variable yield ("dial-a-yield") of 5 or 150 kilotonnes of TNT (21 or 628 TJ).

W80 nuclear warhead
A W80 nuclear warhead
TypeNuclear weapon
Place of originUnited States
Production history
DesignerLos Alamos National Laboratory (W80-0,1), Lawrence Livermore National Laboratory (W80-2,3,4)
DesignedJune 1976
ProducedJanuary 1979
No. built2117
Variants5
Specifications
Mass290 lb (130 kg)
Length31.4 inches (80 cm)
Diameter11.8 in (30 cm)

Blast yield5 or 150 kilotonnes of TNT (21 or 628 TJ)

It was designed for deployment on cruise missiles and is the warhead used in all nuclear-armed ALCM and ACM missiles deployed by the US Air Force, and in the US Navy's BGM-109 Tomahawk. It is essentially a modification of the widely deployed B61 weapon, which forms the basis of most of the current US stockpile of nuclear gravity bombs. The very similar W84 warhead was deployed on the retired BGM-109G Ground Launched Cruise Missile.

It was designed at Los Alamos National Laboratory in Los Alamos, New Mexico.

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