Interrelation of exhaust-gas constituents
This 1938 NACA technical report, catalogued through the NASA Technical Reports Server, presents engineering charts relating exhaust-gas constituents of an internal combustion engine to air-fuel ratio, written for engine researchers. The pictures are plain black-and-white graphs with gridded axes, fine line families, scatter points and dashed theoretical-versus-empirical curves, offering a designer little beyond a restrained scientific chart vocabulary for diagrams or data-visualisation layouts.
