Analysis of Stresses in German Airplanes
This is a 1923 technical report from NASA's Technical Reports Server collection, a study of structural stresses in German military aircraft, written for aeronautical engineers and researchers. The pictures are black-and-white photographs of airframes and wing load tests in workshops, a line-and-scatter chart of factor against total weight, and a few line drawings of struts and aircraft. A designer could take from them the raw, unglamorous look of early aircraft structures: lattice of wood and wire bracing, timber test frames, and clean technical plate layouts.
