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A comparison of several tapered wings designed to avoid tip stalling (1939)
NASA Technical Reports Server (NTRS) · leaf 21
.2 1.0 0 .6 .8 Fraction of semiBpan, Tip Hoot figure 2.- Calculated stall of wing with camber increase and washout; taper ratio, l/3NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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