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 af = parabola 1.0 = polar | c = Gottingen 387 i; d = parabola 0.8 }+-—4-+44 0.6 |; Co Ay JG ff ra f Fat M0. 2 ye / -0.06 303 0 ' Fig.3 Replacement of polar of Gottingen profile 387 by a parabola. … Fig.4 Theoretical and experimental reduction factors, yH, for symmetrical biplanes.
NASA Technical Reports Server (NTRS) · Legacy CDMS · Schrenk
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
