Effect of Surface Roughness on Characteristics of Aerofoils N.A.C.A. 0012 and R.A.F. 34 Open PDF Document Details Document Type Technical Report Publication Date Feb 13, 1936 Accession Number ADA951598 Entities People D. H. Williams R. Jason Jones Tags Communities of Interest Air Platforms DTIC Thesaurus Topics Air Airfoils Aspect Ratio Boundary Layer Chromium Coefficients Compressed Air Drag Finishes Friction Leading Edges Measurement Reynolds Number Roughness Skin Friction Surface Properties Surface Roughness