Glider Development in Germany : a Technical Survey of Progress in Design in Germany Since 1922
A 1935 technical survey of German glider design, published by NASA through its Technical Reports Server and drawn from its Technical Reports collection for engineers and aviation historians. The pictures are plain line drawings of sailplanes in three-view layout (plan, side and front elevations) with dimensions labelled in feet and inches and weights in pounds. A designer could take their clean orthographic drafting style and the clear dimension callouts as a model for technical diagrams.
