The NACA Tank : A High-speed Towing Basin for Testing Models of Seaplane Floats
This is a 1934 NACA technical report by NASA's aeronautical research body, describing a high-speed towing basin built to test seaplane float models, aimed at aeronautical engineers and naval researchers. The pictures are plain engineering drawings and photographs: elevations, sections and plan layouts of the tank structure, a float hull profile with station lines, and a view of the working hall with a towing carriage and framework. A designer might take from them the spare line-drawing style of period technical plates and the rhythm of truss and framing lines.
