Annual report - National Advisory Committee for Aeronautics
This 1915 annual report from the United States National Advisory Committee for Aeronautics, printed by the Government Printing Office in Washington, documents early government aeronautical research, aimed at engineers, officials and military planners. Its pictures are technical line diagrams: engine nacelle cross-sections, airfoil profiles with construction geometry, grid-plotted performance curves and contour charts, all in black ink on cream paper, offering a designer clean schematic linework and an archival scientific graphic vocabulary.
