Metal Covering of Airplanes
A 1930 aeronautical technical report on metal covering of airplanes, issued through NASA's Technical Reports Server and aimed at aircraft engineers. Its pictures are plain engineering diagrams and graphs: a grid of stress vectors on a rectangular panel, a curve of stress against corrugation spacing, a sketch of corrugations under tension, and plain strip panels. A designer might take the clean line-work and the pale grey tinted diagram style for technical illustration.
