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Effect of the Surface Condition of a Wing on the Aerodynamic Characteristics of an Airplane (1934)
NASA Technical Reports Server (NTRS) · leaf 6
N.A.C.A. Technical Note No.495 Fig. 1 Fig. 1 - Three-view drawing of the Fairohild F-23 airplane.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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