Airfoil Theory at Supersonic Speed
A 1939 technical report from the NASA Technical Reports Server, a sober engineering publication on airfoil theory at supersonic speed, prepared for aerodynamicists and researchers. Its pictures are line diagrams of lift distributions and contour lines over rectangular and trapezoidal wings, drawn in fine black strokes on white, with dashed and solid curves and stepped bar graphs; a designer might borrow their clean, precise linework and the flowing, nested contour rhythm for abstract patterns.
