Pressure distribution over a Clark Y-H airfoil section with a split flap
A 1937 NASA technical report, issued through the NASA Technical Reports Server, presenting measured pressure distributions over a Clark Y-H airfoil fitted with a split flap for aeronautical engineers. The pictures are engineering plots of surface pressure against chord for several angles of attack, each drawn as paired upper and lower surface curves with square and circle markers over a flat horizontal zero line, plus a dimensioned airfoil diagram showing station positions and flap hinge. A designer could borrow the clean, minimal line-and-marker graph style and the sleek teardrop wing profile silhouette.
