The Drag of Two Streamline Bodies as Affected by Protuberances and Appendages
This 1934 NASA technical report, issued by the National Advisory Committee for Aeronautics, studies how protuberances and support wires change the drag of two streamlined bodies, with results aimed at aircraft engineers. The first picture is a photograph of a streamlined model with thin support wires in front of a large circular fan-like grid, and the second is a line graph of drag coefficient against Reynolds number, with the original and altered configurations plotted as data points. A designer could take from them the clean, technical look of 1930s wind-tunnel photography and the restrained graph styling of engineering data plots.
