800px-Curtiss_NC-4_four_engine_configuration-detailPart I  Starting Point         My PDF file   ATLAIRpart1

Ro Staaken E-4-20

From NACA (on the subject of large size):                      NACA Giant Airplanes
rom Scientific American
(on the effect of         parasite drag):
   The Low-Resistance Airplane
002Part II  Bigger Airplanes        My PDF file   ATLAIRpart2


800px-Sikorsky_S-42Part III  Form and Fabric       My PDF file   ATLAIRpart3  (rev 1)

IGOR I. SIKORSKY (1889-1972)    Igor I. Sikorsky (1889-1972)

Historic Document:
Sikorsky lectures in London (1934):

Watch this space       …to be continued…



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airplane construction interbellum Rohrbach

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