Plus, they’re easy to customize with luscious flavors that … Bockscar, sometimes called Bock's Car, is the name of the United States Army Air Forces B-29 bomber that dropped a Fat Man nuclear weapon over the Japanese city of Nagasaki during World War II in the second – and last – nuclear attack in history. [28], The plutonium pit[22] was 3.62-inch (92 mm) in diameter and contained an "Urchin" modulated neutron initiator that was 0.8-inch (20 mm) in diameter. The name “Fat Boy” was supposedly formed from the nicknames “Fat Man” and “Little Boy,” the designations given to the two atomic bombs dropped on Japan. Fat Girl 9. "Fat Man" was tested in July 1945. Sweeney then proceeded to the alternative target of Nagasaki. The theory is that the name is derived by combining the names of the two bombs that were … The bomb destroyed 5 square miles of the city and caused about 140,000 deaths by the end of 1945. [31] It left Kirtland Army Air Field on a C-54 transport aircraft of the 509th Composite Group's 320th Troop Carrier Squadron on 26 July and arrived at North Field on Tinian on 28 July. Combined, the two atomic bombs caused as many as 220,000 deaths and most certainly brought a climactic end to a bloody war. It was found that this was stable at room temperature when alloyed with aluminum, but aluminum emits neutrons when bombarded with alpha particles, which would exacerbate the pre-ignition problem. 64 kg of Uranium-235, about 1.38% of the uranium fissioned Nagasaki's "Fat Man" gravity bomb 19–23 79–96 This was the second of two bombs dropped on Japan that helped bring a swift end to World War II. The term “pumpkin bomb” can apply to both the dummy concrete bombs used at Wendover for training, and to the high-explosive bombs dropped over Japan. Dropped on the Japanese city of Nagasaki on August 9, 1945, it was the second nuclear weapon used in a war. It gave a yield of about 20 kilotonnes (84 TJ). Hinge fixing the two ellipsoidal parts of the bomb. The footage also depicts the mushroom cloud above Nagasaki. 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. The name Fat Man refers to the early design of the bomb because it had a wide, round shape; it was also known as the Mark III. The Fat Man was dropped and exploded at 11:02 local time, following a 43-second free-fall, at an altitude of about 1,650 feet (500 m). The cores were transported to North Field, arriving on 2 August, when F31 was partly disassembled in order to check all its components. Note the signatures on the tail assembly and the "bomb" on the worker's shirt, Fat Man is lowered on to a transport dolly for the trip to the airfield. Harley Davidson Fat Boy 2011, Legacy Classic 2-into-2 Head Pipe Set by Magnaflow®. The bomb designs were created by Robert Serber who chose the codenames according to the design shapes of the bombs. There were also the Y-1563 and Y-1564, which were practice bombs with no detonators at all. This handy little baby packs all the power of a nuclear bomb, with little of the clean up! 2 oz Red Bull® energy drink. [31], The result was the fission of about 1 kilogram (2.2 lb) of the 6.19 kilograms (13.6 lb) of plutonium in the pit, i.e. The second bomb was nicknamed Helen of Bikini and was placed without its tail fin assembly in a steel caisson made from a submarine's conning tower; it was detonated 90 feet (27 m) beneath the landing craft USS LSM-60. Teknik. For other uses, see, Codename for the type of atomic bomb that was detonated over the Japanese city of Nagasaki on 9 August 1945, The detonation wave (arrows) is initially, Video footage of the bombing of Nagasaki (silent), detonated over the Japanese city of Nagasaki, National Museum of the United States Air Force, Atomic bombings of Hiroshima and Nagasaki, "Bockscar … The Forgotten Plane That Dropped The Atomic Bomb « A Little Touch Of History", Columbia university center for nuclear studies: Hiroshima and Nagasaki: The Long Term Health Effects, "United States Strategic Bombing Survey Summary Report (Pacific War) The Effects Of The Atomic Bombs", "Section 8.1.1 The Design of Gadget, Fat Man, and "Joe 1" (RDS-1)", "Plutonium: A Wartime Nightmare but a Metallurgist's Dream", "The yields of the Hiroshima and Nagasaki nuclear explosions", "Atomic John: A truck driver uncovers secrets about the first nuclear bombs", https://en.wikipedia.org/w/index.php?title=Fat_Man&oldid=999594063, Cold War aerial bombs of the United States, World War II weapons of the United States, World War II aerial bombs of the United States, Short description is different from Wikidata, All Wikipedia articles written in American English, Creative Commons Attribution-ShareAlike License. This fuel would still have to be carried all the way to Japan and back, consuming still more fuel. "[3] Conant consulted Ernest Lawrence and Arthur Compton, who acknowledged that their scientists at Berkeley and Chicago respectively knew about the problem, but they could offer no ready solution. [59] The Mark III Fat Man was retired in 1950. The first was the "Gadget" detonated at the Trinity site on July 16, 1945. It was also far more efficient – the Little Boy bomb fissioned about 1.5% of its available nuclear material, while the Fat Man bomb fissioned about 20%. $279.00. For more information, see The Science Behind the Atom Bomb. 140 lbs; target - 85 lbs and projectile - 55 lbs, Target case, barrel, uranium projectile, and other main parts ferried to, Uranium target component ferried to Tinian via C-54 aircraft of the, Approx. The only American bombers that could carry the Fat Man were the B-29 and the Convair B-36. 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