Pressure Distribution on the C-7 Airship
A 1926 technical report from the NASA Technical Reports Server, apparently issued by the National Advisory Committee for Aeronautics, on pressure distribution over the hull of the C-7 airship. The pictures are plain line drawings of longitudinal sections and cross-section polar diagrams, with dashed and solid outlines, station marks along the hull, and small pressure-point plots; a designer could borrow their clean technical diagram layout, dashed-versus-solid contour convention, and radial polar charts as a model for schematic data graphics.
