Charts for checking the stability of compression members in trusses
This is a 1936 NACA technical report of nomographic charts for checking whether compression members in trusses stay stable, issued by the NASA Technical Reports Server collection for structural engineers. The four pictures are dense families of curved contour lines and nested grids, with labelled axes and dashed guide lines, which a designer could borrow for generative line patterns, topographic-style textures, or graph-based diagram layouts.
