Photograph, sketch and brief description of substratosphere clipper, announced by Douglas Aircraft Co; powered by 4 Pratt-Whitney engines of new type, plane will have range of 5000 mi; cargo capacity expected to handle over 30,000,000 lb of air express annually.
Douglas DC-7 transport plane
Aero Digest
Aero Digest ; 47 , n 6
1944
Aufsatz (Zeitschrift)
Englisch
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