A handful of good injection mold china photos I discovered:
Steven F. Udvar-Hazy Center: View of south hangar, including B-29 Superfortress “Enola Gay”, a glimpse of the Air France Concorde, and a lot of other individuals
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 1st bomber to property its crew in pressurized compartments. Despite the fact that made to fight in the European theater, the B-29 identified its niche on the other side of the globe. In the Pacific, B-29s delivered a variety 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 initial atomic weapon utilized 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 both missions.
Transferred from the United States Air Force.
Country of Origin:
United States of America
General: 900 x 3020cm, 32580kg, 4300cm (29ft six 5/16in. x 99ft 1in., 71825.9lb., 141ft 15/16in.)
Polished overall aluminum finish
4-engine heavy bomber with semi-monoqoque fuselage and high-aspect ratio wings. Polished aluminum finish all round, common late-World War II Army Air Forces insignia on wings and aft fuselage and serial quantity on vertical fin 509th Composite Group markings painted in black "Enola Gay" in black, block letters on decrease left nose.