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A few more mechanical-flight formulas without the aid of polar diagrams (1928)
NASA Technical Reports Server (NTRS) · leaf 28
od N.A.C.A. Technical Memorandum No.457 . Figs.3 & 4 … ' Fig.3 Replacement of polar of Gottingen profile 387 by a parabola. ask experimental v4 : theoretical ec) “Dae |W Fig.4 Theoretical and experimental reduction factors, yH, for symmetrical biplanes.NASA Technical Reports Server (NTRS) · Legacy CDMS · Schrenk
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