Built by the Douglas Aircraft Company between 1953 and 1958, the DC-7 was a derivative of the DC-6, made to fly coast-to-coast across the US in as little as eight hours. The DC-7 was the last piston-engine powered plane built by Douglas, and unlike the successful DC-3 and DC-6, no examples of the aircraft are flying today.
No Longer In Service: The Story Of The Douglas DC-7
Douglas produced four different variants of the type, as well as designing an ultimately unbuilt fifth version.
