Bombing of Hiroshima & Nagasaki
By: Spenser Myers
The Little Boy bomb, except for the uranium payload, was ready at the beginning of May 1945. The uranium-235 projectile was completed on June 15, and the target on July 24. The target and bomb pre-assemblies (partly assembled bombs without the fissile components) left California, on July 16 aboard the ship USS arriving July 26. The target inserts followed by air on July 30.
On the morning of August 6th, a B-29 Superfortress from the 509th Composite Group of the 20th Air Force division, named Enola Gay took off from Tinian. At about 8:16 am, the Enola Gay dropped the bomb “Little Boy,” weighing 9,000 lbs. and being ten feet long in length.