February 2007 Issue

Keep The Sparks Arcing

Most pilots know the average GA engine uses technology dating from the 1930s, but little more. Ensuring there’s always a hot spark can help keep them cool.

Why do reciprocating aircraft engines have independent dual ignition systems? At first glance, the answer seems obvious: for a safety backup. Most pilots will agree that if one system fails, the other will provide enough spark to keep the engine running. Keeping the combustion going is only one reason for the dual-magneto system.

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