12 Little Boy Atomic Bomb

Another Little Boy Atomic Bomb casing can be found at the US Air Force Museum in Dayton, OH

MK I or Little Boy Atomic Bomb:

Little Boy Atomic Bomb (Mk I)
Length: 120 inches
Diameter: 28 inches
Weight: 8,900lbs
Explosive Yeild: 15-16 kilotons
Configuration: Gun type heavy uranium bomb
First Use: Hiroshima, Japan

This is one of several Little Boy type atomic bombs that were produced after the war (Mk I Atomic Bomb was the official classification for this nuclear weapon). When they were deemed obsolete the explosives and uranium were removed and they were either scrapped or distributed to museums.