Propeller design I : practical application of the blade element theory
A 1926 NACA technical note on propeller design, produced by the National Advisory Committee for Aeronautics for aeronautical engineers and researchers. Its three pictures are dense engineering charts of lift correction curves and lift-to-drag plots, plotted against angle of incidence with families of labelled curves. A designer might borrow the clean grid-and-curve graphic language, the small numbered tick labels and the dense multi-panel layout for technical infographics.
