Wind-tunnel Tests of a Wing with a Trailing-edge Auxiliary Airfoil Used as a Flap
This is a 1935 NACA-style technical report from NASA's Technical Reports Server, presenting wind-tunnel tests of a wing fitted with a trailing-edge auxiliary airfoil acting as a flap, for aeronautical engineers. Its pictures are line-drawn cross-section diagrams of the airfoil and flap positions beside rotated plots of lift and drag coefficients against angle and pressure-coefficient curves, useful for a designer seeking technical graph layouts, airfoil profile sketches, or engineering diagram typography.
