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The Aerodynamic Characteristics of Airfoils as Affected by Surface Roughness (1933)

NASA Technical Reports Server (NTRS) · leaf 11

An illustration from The Aerodynamic Characteristics of Airfoils as Affected by Surface Roughness, 1933, leaf 11 — Figs.l & 2 N#A.C.A. Technical Note No.457 Figure 2.-Photomicrograph (x30)of rough area on N.A. C.A.0012 airfoil with human hair for comparison.

NASA Technical Reports Server (NTRS)

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

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