Experiments with a wing from which the boundary layer is removed by pressure or suction
This is a 1928 NASA technical report, drawn from the NASA Technical Reports Server, on aerofoil experiments in which the boundary layer is removed by suction or pressure. The pictures are plain engineering charts and a diagram: line graphs of lift and drag against angle of attack, dense plotted curves of force values, and a manometer schematic with a Pitot tube, suited to a designer wanting technical graph styling.
