Photographs, 3-view drawings and brief specifications of: Aeronautical Products Model 3A; Bell; Bendix Model G; Bendix Model H; Bendix Model I; Stout Helicab; WCK'copter; Hartwig-Little ' Copter; Hiller Industries Hiller-copter; Landgraf H-2; Pennsylvania Aircraft Syndicate, Ltd, Cyrocopter; P-V Engineering Forum PV-2; Twin Coach Co Hover-Twin; Platt-Le Page R-1A; Sikorsky R-4; Sikorsky R-5; Sikorsky R-6.
American helicopters
Aviation
Aviation ; 44 , n 2
1945
4 pages
Aufsatz (Zeitschrift)
Englisch
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