August 2010 Issue
Lycoming IE2: Incremental Technology
Itís as close to a clean-sheet engine as youíre likely to see in the current market. But what it really does is adapt mainstream auto technology to airplane engines.
The modern car engineóeven a cheap oneóis such a marvel that you can turn the key without thinking about its once-in-a-million failure-rate ECU, its direct-fire coils and fuel injectors that can paint the Mona Lisa in 93-octane pulses. Oh, and if you canít get 93 octane, no worries, the ECU will adjust the timing to burn 91. Were it so simple with aircraft engines. And not that Lycoming and Continental havenít tried to make it that simple and they are still trying. Lycomingís latest and most sophisticated attempt is the new IE2 for integrated electronic engine. Integrated means electronically customized for the airframe and dancing cheek to cheek with the airplaneís EFIS and it also means full-bore electronic control of nearly everything.
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