W49
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This article is about the W49 nuclear warhead. For Astronomical region, see Westerhout 49.
The W49 was an American thermonuclear warhead, used on the Thor, Atlas, Jupiter, and Titan I ballistic missile systems. W49 warheads were manufactured starting in 1958 and were in service until 1963, with a few warheads being retained until 1975.
The W49 has been described as a design derivative of the B28 nuclear bomb nuclear warhead design.
The W49 was 20 inches in diameter and 54 to 58 inches long depending on model, weighing 1,640 to 1,680 pounds.
The W49 had a design yield of 1.44 megatons.
