Fatigue Strength of Airplane and Engine Materials
A 1934 NASA technical report on fatigue strength of airplane and engine materials, produced for aeronautical engineers and researchers testing metals under repeated loading. Its pictures are plain engineering graphs: log-scale stress-versus-cycles curves with lettered lines, scatter plots of reversed bending strength against tensile strength, and a few hand-drawn lines and markers on gridded paper, offering a designer little beyond the stark, technical look of mid-century data charts.
