Mark 14 nuclear bomb

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Mark 14 nuclear bomb
A photo of a Mk14 without tail section attached
TypeThermonuclear gravity bomb
Place of originUnited States
Service history
In service1954-1956
WarsCold War
Production history
DesignerLos Alamos National Laboratory
ProducedFeb-Oct 1954[1]
No. built5
Mass28,950–31,000 lb (13,130–14,060 kg)
Length222 in (5.6 m)
Diameter61.4 in (156 cm)

Air burst
Blast yield5–7 megatonnes of TNT (21–29 PJ) (deployed Mk-14)
6.9 megatonnes of TNT (29 PJ) (Castle Union test device)
A test device in a Mark 14 casing during Operation Castle, possibly the Castle Union test of the Mark 14 design.
The Castle Union test of the Mark 14 design.

The Mark 14 nuclear bomb was a 1950s

in the Soviet Union.

The fusion fuel used by the bomb was 95% enriched Lithium

nuclear fusion reactions as isotope 6. The Mk-14 bomb had a diameter of 61.4 inches (1.56 m) and a length of 222 inches (5.64 m). They weighed between 28,950 and 31,000 pounds (13,100 and 14,100 kg), and used a 64 feet (20 m) parachute.[1]

The version tested at Castle Union used a RACER IV primary. 5 Mt of its total yield came from fission, making it a very "dirty" weapon.[2]

By 1956, the components of all five of the produced Mk-14 bombs had been recycled into Mark 17s.

See also


  1. ^ a b "List of All U.S. Nuclear Weapons". The Nuclear Weapon Archive. 30 March 2023. Retrieved 10 Aug 2023.
  2. ^ "Operation Castle". The Nuclear Weapon Archive. 17 May 2006. Retrieved 10 Aug 2023.