May 2017 Issue

Fire And Ice

Carb heat helps prevent the icemaker in your engineís carburetor from snuffing out the fires. Itís a relatively simple system, but still needs some care and feeding.

The typical air-cooled piston aircraft engine powering personal airplanes employs a carburetor to meter the fuel and air entering combustion chambers before itís ignited. The devices are relatively simple and well-understood, with roots going back to the first internal combustion engines. But almost since the beginning of heavier-than-air flight, carburetor icing has been an operational consideration associated with mysterious engine failures or interruptions of power.

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