Experimental investigation of the physical properties of medium and heavy oils, their vaporization and use in explosion engines. Part III
This is a 1926 NACA technical memorandum, part of an experimental study of medium and heavy oils, published by NASA Technical Reports Server from a NACA series for engine researchers. Its pictures are plain engineering line drawings and graphs: one chart plots vaporization speed and diffusion coefficient against temperature for paraffin, gasoline, kerosene, coal-tar and gas oils, and one apparatus diagram shows a sealed glass vessel with tubing, a stand and an air pump connection. A designer might take the clean technical plotting and labelled schematic conventions as reference for scientific diagrams.
