The effect of area aspect ratio on the yawing moments of rudders at large angles of pitch on three fuselages
This is a 1933 NACA aeronautical research report, published by NASA's Technical Reports Server, measuring how rudder area ratio affects yawing moments at high pitch angles on three fuselage models for aircraft engineers. The pictures are wind-tunnel test plots of coefficient against area ratio for rudders at several angles, plus scale drawings of tail-surface dimensions and a cabin fuselage profile. A designer might take from them the clean line-graph style with labelled angle series, and the technical drawing layouts with dimension callouts.
