MAGNETO VS. BATTERY IGNITION
J. A. WILLIAMS · SAE technical papers on CD-ROM/SAE technical paper series · 1917
This paper discusses the principles of battery ignition and then describes high-tension magneto ignition. A comparison between the two types of ignition is given, and the paper concludes by illustrating diagrammatically how and why a very hot spark causes the engine to produce more power and to economize on fuel consumption.