Avions Hurel-Dubois of Paris is completing first of two high wing HD 31 transports which feature aspect ratio of 20.2, nearly twice that of contemporary American transports; this means less power is needed to do job; other advantages are less weight and less fuel; powered by two Wright C7 engines, 800 hp each at takeoff; span 147 ft; length 72 ft; gross weight 29,750 lb; performance data.
High aspect ratio cuts H.D. 31 drag
Aviation Week
Aviation Week ; 57 , n 10 ; p 21-22 + 25-26 + 29
1952
Aufsatz (Zeitschrift)
Englisch
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