Prechamber Compression-Ignition Engine Performance
This is a technical report from the NASA Technical Reports Server, dated 1938, presenting test results on prechamber compression-ignition engines, likely written for engineers and researchers of the period. The pictures are graphs of pressure rise, ignition delay, compression pressure and power against engine speed, plus a photograph of a single-cylinder test engine on a laboratory stand with its instrument panel; a designer could take from them the clean line-graph style and the plain, instrument-panel look of the period.
