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Elmira soaring contest, 1930 (1931)

NASA Technical Reports Server (NTRS) · leaf 18

An illustration from Elmira soaring contest, 1930, 1931, leaf 18
N.A.O.A. Technical Memorandum No. 613 Figs. 1,2,4

NASA Technical Reports Server (NTRS)

Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.

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