Effect of the Surface Condition of a Wing on the Aerodynamic Characteristics of an Airplane
This is a 1934 NACA Technical Note from the National Advisory Committee for Aeronautics, written for aeronautical engineers and researchers, examining how the surface finish of a wing affects an airplane's aerodynamic performance. The pictures are plain engineering drawings and black-and-white photographs, including a three-view drawing of a Fairchild F-22 airplane and micrographs of wing surfaces, which show how rough and polished finishes differ in texture.
