W15

The Mark 15 nuclear bomb was a 1950s American thermonuclear bomb, the first relatively lightweight (7,600 lb / 3450 kg) thermonuclear bomb created by the United States.The Mark 15 was first produced in 1955, in a production run which ended in 1957. The Mark 15 design was in service from 1955 to 1965. A total of 1,200 units were produced in 3 models.There were three production variants of the Mark 15 bomb, the Mod 1, Mod 2, and Mod 3.
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