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The pressure distribution over a standard and a modified Navy elliptical wing tip on a biplane in flight (1932)
NASA Technical Reports Server (NTRS) · leaf 33
N.A.C.A. Teclmical iTote Ifo. 433 Fig. 4 … » «NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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