Tests of Large Airfoils in the Propeller Research Tunnel, Including Two with Corrugated Surfaces
A 1930 NASA technical report, issued through the NASA Technical Reports Server, presenting wind-tunnel test results for large airfoils in the Propeller Research Tunnel, written for aeronautical engineers and researchers. Its pictures are plain engineering charts of lift, drag and pressure coefficients plotted against angle of attack, a drag-ratio curve, and a photograph of a test rig inside the tunnel, offering a designer little beyond the grid-and-curve graphic vocabulary of early aerodynamics.
