Aerodynamic properties of thick airfoils II
A 1923 technical report of wind-tunnel test results on thick aerofoil sections, issued by an aeronautical research body for aircraft engineers and designers. Its pictures are plotted graphs of lift coefficient against drag coefficient, lift-to-drag ratio, and centre of pressure travel, grouped by airfoil family with labelled curves for each section, offering a designer little beyond the raw performance data behind wing shape choices.
