It wasn't a ship, it was a plane and its name was The Bockscar
"fat man" was the name of the atomic bomb dropped on Nagaski. "little boy" was dropped in Hiroshima.
The code name for the development of the atomic bomb known as "Fat Man" was part of the Manhattan Project. Specifically, Fat Man was developed at the Los Alamos Laboratory under the direction of J. Robert Oppenheimer. The bomb used a plutonium core and was the second atomic bomb dropped on Japan, following "Little Boy," which was a uranium-based bomb. Fat Man was detonated over Nagasaki on August 9, 1945.
The Enola Gay wasn't the atomic bomb. That honor goes to Little Boy and Fat Man. The Enola Gay was the plane specially created to drop the atomic bombs :)
See: Atomic bombings of Hiroshima and Nagasaki
Actually there is no secret to the atomic bomb. However Klaus Fuchs & Ted Hall provided the plans of Fat Man. This saved them considerable engineering effort.
1st Atomic Bomb- (FAT MAN) Hiroshima 2nd Atomic Bomb- (LITTLE BOY) Nagasaki Actually, the first bomb dropped was Little Boy, and that was on Hiroshima. Fat Man, the second bomb, was dropped on Nagasaki.
On August 9th 1945 the Fat Man atomic bomb was dropped on Nagasaki Japan.
Fat Man
fat boy
fat man
Fat boy was the big bomb and little boy was the smaller bomb.
Fat man.
Fat Man
20 kilotons
128.375 inches
Little boy was a uranium fission bomb and Fat man was a plutonium implosion type bomb. Both required the needed research. There is no record into was harder to produce.
"fat man" was the name of the atomic bomb dropped on Nagaski. "little boy" was dropped in Hiroshima.