Wind tunnel research concerning lateral control devices, particularly at high angles of attack VII : Handley Page tip and full-span slots with ailerons and spoilers
This is a 1933 NASA technical report, issued by the NASA Technical Reports Server, presenting wind tunnel measurements of aileron and slot arrangements on aircraft wings for engineers studying lateral control at high angles of attack. The pictures are engineering line graphs plotting lift and drag coefficients, centre of pressure and rolling-moment coefficients against angle of attack, with solid and dashed curves for each wing type and a legend in the top corner. A designer might take from them only the stylised graph conventions: clean axis grids, paired solid and dashed series, and labelled tick marks.
