The triplane and the stable biplane; reprinted from "Engineering"
A 1918 London pamphlet by American aeronautical engineer Jerome C. Hunsaker, reprinted from the journal Engineering for aircraft designers and wind-tunnel researchers. The plates are letterpress line graphs on gridded fields, plotting lift and drift coefficients against angle of incidence for monoplane, biplane and triplane wings, with hand-lettered axis labels, plotted point markers, and ruled data tables.
