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The name Fat Man refers to the early design of the bomb because it had a wide, round shape. Fat Man was an implosion-type nuclear weapon with a solid plutonium core. The first of that type to be detonated was the Gadget in the Trinity nuclear test less than a month earlier on 16 July at the Alamogordo Bombing and Gunnery Range in New Mexico.
To avoid a single point of failure plan, two separate bomb designs are implemented: a large, heavy plutonium bomb imploded using shaped charges ("Fat Man"), and an alternative design for a thin, less heavy uranium bomb triggered in a shotgun or gun-type design ("Little Boy"). The bomb development culminates in a detonation in south-central New ...
Fat Man and Little Boy may refer to: Fat Man and Little Boy, collectively, atomic bombs used in World War II; Fat Man and Little Boy, 1989 film "Fat Man and Little Boy" (The Simpsons), 2004 episode of the TV series
Fat Man was the second nuclear weapon to be deployed in combat after the US dropped a 5-ton atomic bomb, called "Little Boy," on the ... You can still save big with 35% off Bissell's Little Green ...
The impracticability of a gun-type bomb using plutonium was agreed at a meeting held on 17 July 1944. All gun-type work in the Manhattan Project was directed at the Little Boy enriched uranium gun design, and almost all of the research at the Los Alamos Laboratory was re-oriented around the problems of implosion for the Fat Man bomb. [25] [26]
Little Boy in the bomb pit on Tinian island, before being loaded into Enola Gay ' s bomb bay. A section of the bomb bay door is visible on the top right. The Little Boy pre-assemblies were designated L-1, L-2, L-3, L-4, L-5, L-6, L-7, and L-11. Of these, L-1, L-2, L-5, and L-6 were expended in test drops.
There were plans for further attacks on Japan following Hiroshima and Nagasaki. Groves expected to have another "Fat Man" atomic bomb ready for use on 19 August, with three more in September and a further three in October. [87] A second Little Boy bomb (using U-235) would not be available until December 1945.
Fat Man bomb, with liquid asphalt sealant sprayed on the casing's seams, is readied on Tinian. Parsons, as the weaponeer, was in command of the Hiroshima mission. With Second Lieutenant Morris R. Jeppson of the 1st Ordnance Squadron, he inserted the Little Boy's powder bags in the Enola Gay ' s bomb bay in flight. Before climbing to altitude on ...