Annual report - National Advisory Committee for Aeronautics
This annual report from the United States National Advisory Committee for Aeronautics, printed in Washington in 1915, was issued by a federal government body to document aeronautical research for government and military readers. Its pages are dense technical graphs of airfoil lift and drag curves, plotted on ruled grids with labelled curves, tables and small wing-section profiles, offering a designer clean line-chart structure, tight grid layouts and restrained monochrome diagram typography.
