Span: 16.5"

Length: 12.25"

The C-97 was the cargo/transport version of the B-29. Fatten the B-29's fuselage, use the same wings, tail and engines and you have a cargo plane. The prototype first flew in 1944 with the first production C-97A in 1949. Boeing also developed a practical in-flight refueling boom about the same time. Previously, the Air Force had experimented with a trailing hose technique with some success, but Boeing's boom changed the state of the art overnight.