The 6-foot-4-inch Wind Tunnel at the Washington Navy Yard
This is a 1935 NACA technical note, published by the National Advisory Committee for Aeronautics, describing the 6-foot-4-inch wind tunnel at the Washington Navy Yard for aeronautical engineers. The pages mix engineering charts, a sectional elevation and floor plan of the tunnel, a balance mechanism diagram, and photographs of the balance and test section. For a designer, the strongest takeaway is the precise technical line drawing style, with dense labelled callouts, dimension lines and clean grid-based graphs.
