Combustion time in the engine cylinder and its effect on engine performance
This is a 1928 NASA technical report on combustion time inside engine cylinders and how it affects engine efficiency, issued by the NASA Technical Reports Server as an aeronautical engineering study. Its charts plot efficiency, rate of burning and mass burned against crank angle, altitude and expansion ratio, with diagrams of flame spread through a ring-shaped chamber. A designer could borrow its clean graph styling, dense plotting grids and simple schematic line drawings for technical or infographic layouts.
