Tests on Models of Three British Airplanes in the Variable Density Wind Tunnel
This 1928 NACA technical report by the NASA Technical Reports Server records wind tunnel tests on scale models of three British aircraft, written for aeronautical engineers and researchers. Its pictures are plain black-and-white engineering graphs with gridded axes, plotted curves and small symbol keys, showing lift, drag and moment coefficients against one another or against angle of attack. A designer might take from them the restrained grid-and-curve vocabulary of technical charts, useful for diagram or data-visualisation layouts.
