Aerodynamic characteristics of a wing with Fowler flaps including flap loads, downwash, and calculated effect on take-off
A 1936 NASA technical report on aerodynamic tests of a wing fitted with Fowler flaps, written for aeronautical engineers studying take-off performance. The pictures are dense engineering graphs: a multi-curve plot of coefficients against angle of attack, and a grid chart of wing loading against power loading with labelled diagonal lines for take-off distance. For a designer, they offer a stark example of data visualisation, with dense overlapping curves, dashed and solid line variation, and a fine square grid.
