Annual report - National Advisory Committee for Aeronautics
An annual report issued in 1915 by the United States National Advisory Committee for Aeronautics, a government body, for officials and engineers working on flight research. Its pages are dense technical graphs of engine performance and aerodynamic test data, plotted on ruled grids with labelled curves and small scattered points. A designer might borrow the clean grid layouts, hand-inked curves and sparse typography of these engineering charts for diagrammatic or scientific-looking graphics.
