Flight Tests to Determine the Effect of a Fixed Auxiliary Airfoil on the Lift and Drag of a Parasol Monoplane
This is a 1932 NACA technical report, issued by the National Advisory Committee for Aeronautics in the United States for aeronautical engineers and researchers, presenting flight test results on a parasol monoplane with and without a fixed auxiliary airfoil. The pictures are plain engineering charts in black line and dot plots of lift, drag, power and velocity against angle of attack, with clean grid paper and serif labels, offering a designer a restrained model for technical data graphics.
