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The Effect of Split Trailing-edge Wing Flaps on the Aerodynamic Characteristics of a Parasol Monoplane (1933)
NASA Technical Reports Server (NTRS) · leaf 11
N.A.C.A. Figs.3,4. Figure 4.-The Fairchild F-22 airplane mounted in test position in the full-scale wind tunnel.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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