128.375 inches
Fat boy was the big bomb and little boy was the smaller bomb.
See: Atomic bombings of Hiroshima and Nagasaki
fat boy
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.
Los Alamos
Little Boy was employed at Hiroshima and Fat Man at Nagasaki.
Fat man, little boy and Trinity
Little Boy & Fat Man and Gizmo
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.
Little Boy and Fat Man
"fat man" was the name of the atomic bomb dropped on Nagaski. "little boy" was dropped in Hiroshima.
There was no atomic bomb called Big Boy. Perhaps you are confusing it with a restaurant chain that bombed :-)The two atomic bombs used in combat were Little Boy & Fat Man, their approximate weights were 9,000 pounds & 10,000 pounds respectively.