Pressure Distribution Over a Symmetrical Airfoil Section with Trailing Edge Flap
This is a 1931 NASA technical report of wind-tunnel data for a symmetrical airfoil with a trailing-edge flap, issued by NASA Technical Reports Server for aeronautical engineers and researchers. Its pictures are dense engineering charts: line graphs of flap-angle coefficients, and ribbon-like three-dimensional plots of pressure distribution along the wing section at constant angles of attack, with many overlapping curves, grid paper, and labelled axes that a designer could borrow for technical diagram styling.
