Mark 6 nuclear bomb

A Mark 6 nuclear bomb

The Mark 6 nuclear bomb was an American nuclear bomb based on the earlier Mark 4 nuclear bomb and its predecessor, the Mark 3 Fat Man nuclear bomb design.

The Mark 6 was in production from 1951 to 1955 and saw service until 1962. Seven variants and versions were produced, with a total production run of all models of 1100 bombs.

The basic Mark 6 design was 61 inches (150 cm) in diameter and 128 inches (330 cm) long, the same basic dimensions as the Mark 4 and close to the Mark 3. Various models of the Mark 6 were roughly 25% lighter than either the Mark 4 or Fat Man, and weighed 7,600 to 8,500 pounds (3,400–3,900 kg).

Early models of the Mark 6 utilized the same 32-point implosion system design concept as the earlier Mark 4 and Mark 3; the Mark 6 Mod 2 and later used a different, 60-point implosion system.

Various models and pit options gave nuclear yields of 8, 26, 80, 154, and 160 kilotons for Mark 6 models.

Survivors

A Mark 6 casing is on display in the Cold War Gallery of the National Museum of the United States Air Force in Dayton, Ohio.

Another is on display at the Museum of Aviation (Warner Robins).

Variants

Mark 13

The Mark 13 nuclear bomb and W13 missile warhead were developed as higher-efficiency Mark 6 successors, the same size and basic configuration as the Mark 6 but utilizing an improved 92-point implosion system. The Mark 13 was cancelled in August 1954 and the W13 cancelled September 1954, in both cases without ever seeing production service.

Mark 18

The Mark 18 nuclear bomb was a follow-on to the Mark 6 and Mark 13, utilizing a fissile pit assembly with around 60 kilograms of HEU and delivering a yield of 500 kilotons, the largest pure-fission (non-thermonuclear) bomb design ever developed by the US. Mark 18 bombs were eventually recycled into Mark 6 Mod 6 bombs after thermonuclear weapons were deployed in quantity. The Mark 18 was tested once in Operation Ivy King.

External links

Wikimedia Commons has media related to Mark 6 nuclear bomb.

Allbombs.html list of all US nuclear warheads at nuclearweaponarchive.org

United States nuclear devices

Fission

World War II bombs	Gadget Little Boy Thin Man Fat Man

Post-war bombs	Mark III Mark 4 Mark 5 Mark 6 Mark 7 Mark 8 Mark 10 Mark 11 Mark 12 Mark 13 Mark 18 Mark 20

Primaries	Swan Python Robin Tsetse Kinglet

Post-war warheads	W4 W5 W7 W8 W9 W12 W13 W19 W23 W25 W44 W45 W48 W54 W72 W74 W79 W82

Atomic demolition munitions (mines)	T-4 SADM TADM MADM

Boosted
fission

Warheads	W30 W31 W33 W34 W40

Thermonuclear

Bombs	Mark 14 Mark 15 TX-16 Mark 17 Mark 21 TX-22 Mark 24 Mark 26 Mark 27 B28 Mark 36 Mark 39 B41 B43 TX-46 B53 B57 B61 B77 B83 B90

Depth bombs	Mark 90 Mk 101 B57

Warheads	W15 W27 W28 TX-29 XW-35 W38 W39 W47 W49 W50 W52 W53 W55 W56 W58 W59 W62 W67 W68 W69 W70 W71 W73 W76 W78 W80 W81 W84 W85 W86 W87 W88 W89 W91 RRW

Enhanced radiation warheads	W66 W70 Mod 3 W79 Mod 0 W82 Mod 0

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