A couple of nice precision engineering businesses images I identified:
Steven F. Udvar-Hazy Center: B-29 Superfortress “Enola Gay” panorama
Image by Chris Devers
Quoting Smithsonian National Air and Space Museum | Boeing B-29 Superfortress "Enola Gay":
Boeing’s B-29 Superfortress was the most sophisticated propeller-driven bomber of Planet War II and the first bomber to home its crew in pressurized compartments. Even though developed to fight in the European theater, the B-29 found its niche on the other side of the globe. In the Pacific, B-29s delivered a assortment of aerial weapons: traditional bombs, incendiary bombs, mines, and two nuclear weapons.
On August six, 1945, this Martin-constructed B-29-45-MO dropped the very first atomic weapon utilised in combat on Hiroshima, Japan. 3 days later, Bockscar (on show at the U.S. Air Force Museum near Dayton, Ohio) dropped a second atomic bomb on Nagasaki, Japan. Enola Gay flew as the advance weather reconnaissance aircraft that day. A third B-29, The Wonderful Artiste, flew as an observation aircraft on each missions.
Transferred from the United States Air Force.
Manufacturer:
Boeing Aircraft Co.
Martin Co., Omaha, Nebr.
Date:
1945
Country of Origin:
United States of America
Dimensions:
Overall: 900 x 3020cm, 32580kg, 4300cm (29ft 6 five/16in. x 99ft 1in., 71825.9lb., 141ft 15/16in.)
Materials:
Polished general aluminum finish
Physical Description:
4-engine heavy bomber with semi-monoqoque fuselage and high-aspect ratio wings. Polished aluminum finish general, normal late-World War II Army Air Forces insignia on wings and aft fuselage and serial number on vertical fin 509th Composite Group markings painted in black "Enola Gay" in black, block letters on reduced left nose.