Application of practical hydrodynamics to airship design
A 1933 NASA technical report on applying hydrodynamic theory to airship hull design, with no named author beyond the NASA Technical Reports Server catalogue entry. The pictures are engineering plots of transverse force, pressure distribution and cross-section geometry on airship models, with grid lines, labelled curves and axes in black line work. A designer could borrow the clean graph layouts, dimension-style axis labels and the circular cross-section diagrams as schematic reference for technical or scientific infographics.
