Investigation of a Rateau Supercharger for a 700-horsepower Airplane Engine
This is a 1934 NASA technical report, published by NACA-era aeronautical research, investigating a Rateau centrifugal supercharger built for a 700-horsepower aircraft engine and intended for engineers and aircraft designers. The pictures are engineering line drawings and performance charts: cutaway sections of a compressor housing with impeller and gear housing, cross-section views of inlet and outlet spirals, and work diagrams plotting compression ratio, delivery and rotor speed. For a designer, the value lies in their crisp, technical linework, dense labelled callouts, and graph layouts that suggest diagram styling.
