Mark 17 nuclear bomb

Mark 17 nuclear bomb
Type	Thermonuclear gravity bomb
Place of origin	United States
Service history
In service	1954-1957
Wars	Cold War
Production history
Designer	Los Alamos National Laboratory
Designed	1954
Produced	EC-17: Mar-Oct 1954 Mk-17: Jul 1954-Nov 1955
No. built	EC-17: 5 Mk-17: 200
Specifications
Mass	EC-17: 39,600 lb (18,000 kg) Mk-17: 41,400–42,000 lb (18,800–19,100 kg)
Length	24 feet 8 inches (7.52 m)
Diameter	61.4 inches (1.56 m)
Detonation mechanism	Air burst
Blast yield	EC-17: 11 megatonnes of TNT (46 PJ), Castle Romeo test Mk-17: 15 megatonnes of TNT (63 PJ)

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The Mark 17 and Mark 24 were the first mass-produced hydrogen bombs deployed by the United States. The two differed in their "primary" stages. They entered service in 1954, and were phased out by 1957.