Annual report - National Advisory Committee for Aeronautics
This annual report from 1915 was issued by the United States National Advisory Committee for Aeronautics, a government body, and printed in Washington for official and military aviation readers. Its pictures are technical charts and photographs: line graphs of moment coefficients and aileron effects, a curve of fuel-to-air ratios, and a dark oscilloscope-style trace of pressure against time. A designer might draw on their plain grid layouts, dashed and solid line systems, and monochrome scientific graphics.
