Investigation of Turbulence in Wind Tunnels by a Study of the Flow About Cylinders
A 1926 NASA technical report on wind tunnel turbulence, studied through the flow about cylinders, prepared for aeronautical researchers. The pictures are plain engineering charts: drag-coefficient curves plotted against logarithmic Reynolds-number axes, with dashed and dotted lines for different tunnels, and one scatter plot of drag in pounds against airspeed in feet per second. A designer could take from them only the clean, minimal chart grammar of early aerodynamic data graphics.
