The B-29 bomber Bockscar carried the atomic bomb Fat Man to Nagasaki in 1945.
Bockscar was a Boeing B-29 Superfortress flown by Major Charles W. Sweeney of the 393rd Bombardment Squadron. It departed North Field on Tinian on August 9, 1945, carrying Fat Man, a plutonium implosion-type weapon.
Kokura was the primary target, but clouds and smoke prevented the crew from obtaining the visual conditions required for the attack. After several passes and fuel concerns, the aircraft turned toward its secondary target, Nagasaki. A break in the clouds allowed bombardier Kermit Beahan to release the bomb at approximately 11:02 a.m. local time.
Bockscar is often confused with Enola Gay, which dropped Little Boy on Hiroshima three days earlier. The name was painted on the aircraft after the mission and was a play on the nickname of its regular commander, Captain Frederick Bock. The bomber is preserved at the National Museum of the United States Air Force.