High-Speed Oil Engines for Vehicles. Part I
A 1927 NASA technical report on high-speed oil engines for vehicles, issued as a page of engineering plates for engineers and technical readers. Its one page shows four halftone photographs and line drawings of diesel-type engine cylinders, carburettor and combustion details, and an engine cross-section, captioned as Figs. 1 to 4. For a designer, the value lies in the precise mechanical layout: dense labelled machinery in a plain, grey-toned technical plate style with numbered captions.
