Effect of changes in tail arrangement upon the spinning of a low-wing monoplane model
This is a 1936 NACA technical report from NASA's Technical Reports Server, a wind-tunnel and flight study of how changes to tail arrangement affect the spinning behaviour of a low-wing monoplane model. The pictures are engineering plots of spin recovery, angle of attack and velocity against tail-surface position, plus full-scale dimensioned line drawings of the aircraft tail and fuselage, all in plain black linework on white paper. A designer might take from them the clean technical diagram convention of dimension lines, labelled axes and simple silhouette profiles.
