A handful of nice higher precision engineering photos I found:
Steven F. Udvar-Hazy Center: south hangar panorama, including Vought OS2U-3 Kingfisher seaplane, B-29 Superfortress “Enola Gay”, among other people
Image by Chris Devers
Quoting Smithsonian National Air and Space Museum | Vought OS2U-3 Kingfisher:
The Kingfisher was the U.S. Navy’s main ship-primarily based, scout and observation aircraft for the duration of World War II. Revolutionary spot welding strategies gave it a smooth, non-buckling fuselage structure. Deflector plate flaps that hung from the wing’s trailing edge and spoiler-augmented ailerons functioned like additional flaps to permit slower landing speeds. Most OS2Us operated in the Pacific, where they rescued numerous downed airmen, like World War I ace Eddie Rickenbacker and the crew of his B-17 Flying Fortress.
In March 1942, this airplane was assigned to the battleship USS Indiana. It later underwent a six-month overhaul in California, returned to Pearl Harbor, and rejoined the Indiana in March 1944. Lt. j.g. Rollin M. Batten Jr. was awarded the Navy Cross for generating a daring rescue in this airplane below heavy enemy fire on July four, 1944.
Transferred from the United States Navy.
Vought-Sikorsky Aircraft Division
Country of Origin:
United States of America
General: 15ft 1 1/8in. x 33ft 9 1/2in., 4122.6lb., 36ft 1 1/16in. (460 x 1030cm, 1870kg, 1100cm)
Wings covered with fabric aft of the primary spar
Two-seat monoplane, deflector plate flaps hung from the trailing edge of the wing, ailerons drooped at low airspeeds to function like further flaps, spoilers.
• • • • •
Boeing’s B-29 Superfortress was the most sophisticated propeller-driven bomber of Planet War II and the first bomber to property its crew in pressurized compartments. Though created to fight in the European theater, the B-29 discovered 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 6, 1945, this Martin-constructed B-29-45-MO dropped the very first atomic weapon used in combat on Hiroshima, Japan. Three days later, Bockscar (on display at the U.S. Air Force Museum close to 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.
Nation of Origin:
United States of America
All round: 900 x 3020cm, 32580kg, 4300cm (29ft 6 5/16in. x 99ft 1in., 71825.9lb., 141ft 15/16in.)
Polished general aluminum finish
Four-engine heavy bomber with semi-monoqoque fuselage and high-aspect ratio wings. Polished aluminum finish all round, common late-Planet 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 lower left nose.