Glow plug

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A small plug installed in the head of a nitro-burning model engine that facilitates combustion. The plug has an element consisting of a platinum coated nichrome wire that glows hot when connected to a battery for starting purposes. Once the engine has started, the battery is removed and the heat of compression and combustion keeps the element hot. This, coupled with catalytic action of the platinum coating, maintains the combustion source as the engine runs.

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