Mark 39 nuclear bomb

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The Mark 39 nuclear bomb and W39 nuclear warhead were versions of an American thermonuclear weapon, which were in service from 1957 to 1966. The Mark 39 design was a thermonuclear bomb and had a yield of 3.8 megatons. It weighed 6,500–6,750 pounds (2,950–3,060 kilograms), and was about 11 feet, 8 inches long (3.556 meters) with a diameter of 35 inches (89 cm). The design is an improved Mark 15 nuclear bomb design (the TX-15-X3 design and Mark 39 Mod 0 were the same design). The Mark 15 was the first lightweight US thermonuclear bomb. The W39 warhead was 35 inches (89 cm) in diameter and 106 inches (270 cm) long, with a weight of 6,230 pounds (2,830 kg) to 6,400 pounds (2,900 kg). It was essentially identical to the Mark 39 bomb, but lacked its parachute, fins, and "false" nose. It was used on the SM-62 Snark missile, PGM-11 Redstone short-range ballistic missile, and in the B-58 Hustler weapons pod. It was designated as a possible warhead to use in the SM-64 Navaho missile prior to the...

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