The B-29 Superfortress manufactured by Boeing was a highly-sophisticated propeller-driven bomber aircraft built to deliver a range of aerial weapons mines, incendiary bombs, conventional bombs and nuclear weapons. The B-29 used in WW II was the 1st bomber to be able to house the crew in pressurized compartments.
This four engine heavy bomber with a semi-monocoque fuselage & very high-aspect ratio wings was guided by a young Dutch cadet (Theodore Van Dirk) on its mission to drop the 1st atomic bomb on Hiroshima in Aug. 6, 1945.
The B-29 Superfortress was finished with a polished aluminum and sported the standard late-WWII Army Air Force insignia on its wings and the aft fuselage. It had the serial number on the vertical fin and “Enola Gay” in block, black letters on its lower left nose.
On 6 August 1945, the B-29-45-MO built at the Glenn L. Martin Aircraft Plant at Omaha, Nebraska dropped the 1st atomic bomb on the Japanese city of Hiroshima.
Three days after the first atomic bomb was dropped on Hiroshima, three B29 aircraft by the names of Bockscar, Enola Gay and the Great Artiste flew on a mission to drop the 2nd atomic bomb on another Japanese city called Nagasaki.
The Enola Gay flew as an advance weather reconnaissance aircraft. The Great Artiste, flew as the observation aircraft on both missions, and the Bockscar dropped the bomb on Nagasaki, The Bockscar is on display at the National Museum of the US Air Force.