Electronic Ignition: Coming of Age

A second electronic ignition system has received certification. We like the choices now available for those who want to get rid of one magneto.

Magnetos always fire the spark plugs at the same point-on the order of 25 degrees before top dead center (TDC)-and rely on the combustion event to carry on by itself to reach maximum pressure by the time the piston reaches 11 to 17 degrees past TDC. Mags put out a spark of on the order of 12,000 volts. The downside: At 500 hours it's time to pull mags for inspection and repair or replacement. That's not cheap.
To continue reading this article you must be a paid subscriber

 

Subscribe to Aviation Consumer

Start a subscription to Aviation Safety for just $18. And access all of our online content - over 2,000 articles - free of charge.
Subscribe today and save 48%. It's like getting 3 months FREE!