Tests on air propellers in yaw
A 1923 technical report from the Stanford University Aeronautic Laboratory, issued through NASA's Technical Reports Server, presenting wind-tunnel test results for air propellers operating at yaw for engineers and aeronautical researchers. The pages are dense engineering graphs of thrust and torque coefficients plotted against angle of yaw, with labelled curve families, grid axes and a boxed key for propeller designations. A designer could take from them the restrained grammar of technical charts: fine black curves on white grids, numbered series labels, and the crossing lines that mark where results converge.
