The heavy-lift Boeing C-97 Stratofreighter was a bomber in a cargo plane's clothing.
In short: Born from the B-29 Superfortress, the C-97 Stratofreighter redefined military logistics by stacking a second fuselage lobe atop a bomber frame. While it lacked the tactical agility for primitive runways, its pressurized cabin and massive payload capacity made it a versatile workhorse across three decades of global conflict.
Development of the C-97 began in 1942, leveraging the wings, tail, and engine layout of the B-29 Superfortress. The prototype, designated XC-97, took its maiden flight on 9 November 1944. By January 1945, the aircraft demonstrated its potential by flying from Seattle to Washington, D.C. in just over six hours while carrying 20,000 pounds of cargo. This design was later refined with the more powerful Pratt & Whitney Wasp Major engines and the taller fin and rudder characteristic of the B-50 Superfortress.
The aircraft's utility was defined by its unique clamshell doors and retractable ramps, which allowed for the loading of heavy equipment like 2.5-ton trucks and M56 Scorpion light tracked vehicles. Although it was not designed for tactical landings on primitive forward bases, its pressurized cabin significantly improved crew comfort during long-range missions. The platform was highly adaptable, serving as a flying command post, a medical evacuation transport, and even a covert ELINT platform for the CIA in the West Berlin Air Corridor.
The C-97 family extended into the aerial refueling domain, with 811 KC-97 tankers built to support the Strategic Air Command. These tankers were eventually phased out following the 1957 introduction of the KC-135 Stratotanker. Beyond military service, the design birthed the Boeing 377 Stratocruiser, a civilian airliner that featured a lower-deck lounge and sleeper cabins. Today, only one airworthy C-97 remains, the 'Angel of Deliverance,' which serves as a flying tribute to the aircraft's extensive history in operations ranging from the Berlin Airlift to the Nigerian Civil War.
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- Summary by Intellect · source: Boeing C-97 Stratofreighter
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