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Implosion Mark 2 – Another Manhattan Project plutonium implosion weapon, a hollow pit implosion design, was also sometimes referred to as Mark 2. Also cancelled 1944. Also cancelled 1944. Mark 3 – " Fat Man " plutonium implosion weapon (used against Nagasaki), effectively the same as the "Gadget" device used in the Trinity nuclear test with ...
Thin Man nuclear bomb or Mark 2 nuclear bomb (1945), a gun-type plutonium bomb; Mark II, a variant of the British Mark I tank; Merkava Mark II, a variant of the Israeli Merkava battle tank; Supermarine Spitfire Mk II, a Spitfire variant with a stronger Merlin engine
The Mark 39 Mod 0 bomb was an offshoot of proposals to improve the Mark 15 nuclear bomb. The Mk 39 Mod 0 differed from the Mark 15 in that it used contact fuzes instead of proximity fuzes, and it had thermal batteries instead of nickel-cadmium batteries. It also weighed about 1,000 pounds (450 kg) less.
The "Thin Man" design was an early nuclear weapon design proposed before plutonium had been successfully bred in a nuclear reactor from the irradiation of uranium-238. It was assumed that plutonium, like uranium-235 , could be assembled into a critical mass by a gun-type method, which involved shooting one sub-critical piece into another.
The two Mark 39 Mod 2 nuclear bombs involved in the Goldsboro crash had distinctly different outcomes. Official reports identified them as weapon no. 1 (or bomb no. 1) and weapon no. 2 (or bomb no. 2), with the first's parachute having deployed and the second having crashed into the ground in free-fall without any decrease in its speed.
Experts then and now agree: By June 1945, Japan had been militarily defeated and President Truman didn’t need to bomb Hiroshima and Nagasaki. | Opinion
Fat Man Replica of the original Fat Man bomb Type Nuclear fission gravity bomb Place of origin United States Production history Designer Los Alamos Laboratory Produced 1945–1949 No. built 120 Specifications Mass 10,300 pounds (4,670 kg) Length 128 inches (3.3 m) Diameter 60 inches (1.5 m) Filling Plutonium Filling weight 6.2 kg Blast yield 21 kt (88 TJ) "Fat Man" (also known as Mark III) was ...
Mark Kelly, chair of the Senate Armed Services Airland Subcommittee, said Israel used a 2,000-lb (900-kg) Mark 84 series bomb, during an interview with NBC. "We see more use of guided munitions ...