The Sparks That Let You Fly

It really only takes three things to make our piston engines go: air, fuel and, of course, a spark to set things burning and those pistons churning. We, the pilots, are responsible for making sure our engines have enough fuel to mix with air (and enough air, for that matter) to make it all burn. We pretty much know where the air and fuel come from, but what about that spark? The answer is an engineering marvel, but an ancient one. As pilots in the 21st century, more than 100 (nearly 110!) years after the invention of the first flying aircraft engine, we rely, amazingly, on nearly the same technology to generate spark today as did the Wright Brothers.

Key Takeaways:

• Magnetos are an essential, ancient, and reliable technology for aircraft engine ignition, with dual systems providing both increased power and critical redundancy.
• Pilots must meticulously perform pre-flight magneto checks to detect issues like fouled spark plugs or incorrect timing, and should never fly if a magneto system is compromised, as redundancy becomes critical.
• In-flight ignition problems require strict adherence to checklists, identifying and securing the faulty magneto, and proceeding directly to maintenance, prioritizing safety over continuing with a reduced or compromised system.

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