what does the fan do

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cman
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what does the fan do in the chamber?
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PCGUY
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The fan in Combustion chamber helps mix the air and fuel around... a better mix=better ignition. It's not required... but nice and handy.
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BC Pneumatics
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They also help vent the gasses after fireing the cannon. They are realy worht the extra cost, espetialy if you can find a used one cheap at a pc shop, or even garage sells.
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