Tests on duralumin columns for aircraft construction
A 1924 technical report from the NASA Technical Reports Server on tests of duralumin columns for aircraft construction, presenting experimental results of ultimate stress against slenderness ratio. The four plates are scientific charts with plotted test points, Euler and straight-line formula curves, and small cross-section diagrams of the aluminium alloy sections tested. A designer might take from them the clean graph styling of engineering plots, with dashed and dotted curve variations, tabular data boxes, and the simple angled and channel section profiles.
