Wind-tunnel tests of a Clark Y wing with 'Maxwell' leading-edge slots
This is a 1937 NASA technical report of wind-tunnel tests on a Clark Y aerofoil fitted with Maxwell leading-edge slots, issued through the NASA Technical Reports Server for aeronautical engineers and researchers. The pictures are plain engineering graphs on squared grids, with labelled curves of lift coefficient, drag coefficient, lift-drag ratio and pitching moment plotted against angle of attack and slot gap. A designer could take from them only the stepped, dotted-line curve styles and the crisp grid layouts of mid-century technical charts.
