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The crew had been ordered to drop the bomb visually if possible; Sweeney decided to proceed with a visual bomb run. [11] Bockscar then dropped Fat Man, with a blast yield equivalent to 21 kilotons of TNT. It exploded 43 seconds later at 1,539 feet (469 meters) above the ground, at least 1.6 miles (2.5 kilometers) northwest of the planned aim point.
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 ...
[citation needed] On 6 August, a Little Boy was dropped on Hiroshima. Three days later, a Fat Man was dropped on Nagasaki. Over the next two to four months, the effects of the atomic bombings killed 90,000 to 166,000 people in Hiroshima and 60,000 to 80,000 people in Nagasaki; roughly half occurred on the first day.
The release at 08:15 (Hiroshima time) went as planned, and the Little Boy took 53 seconds [16] to fall from the aircraft flying at 31,060 feet (9,470 m) to the predetermined detonation height about 1,968 feet (600 m) above the city. Enola Gay traveled 11.5 mi (18.5 km) before it felt the shock waves from the blast. [17]
The Little Boy pre-assemblies were designated L-1, L-2, L-3, L-4, L-5, L-6, L-7 and L-11. L-1, L-2, L-5 and L-6 were expended in test drops. L-6 was used in the Iwo Jima dress rehearsal on 29 July. This was repeated on 31 July, but this time L-6 was test dropped near Tinian by Enola Gay. L-11 was the assembly used for the Hiroshima bomb.
Parsons arranged for a test program at Dahlgren using scale models of Thin Man and Fat Man. Test drops were carried out at Muroc Army Air Field, California, and the Naval Ordnance Test Station at Inyokern, California, using full-size replicas of Fat Man known as pumpkin bombs. The ungainly and non-aerodynamic shape of Fat Man proved to be the ...
Beser was the radar specialist aboard the Enola Gay on August 6, 1945, when it dropped the Little Boy atomic bomb on Hiroshima. Three days later, Beser was a crewmember aboard Bockscar when the Fat Man bomb was dropped on Nagasaki. He was the only person to have served as a strike crew member of both of the 1945 atomic bomb missions. [1]
A Project Alberta Advance Party was created, consisting of Sheldon Dike for Air Force liaison, Theodore Perlman for Little Boy, and Victor Miller and Harlow Russ for Fat Man. The rest of the Fat Man team prepared the "Gadget", the case-less Fat Man bomb used for the Trinity nuclear test. Parsons and Warner had decided that the combat use of the ...