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Old 08-28-2011, 12:11 PM
alanauer alanauer is offline
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Join Date: May 2010
Posts: 239
Thanks. Not to argue, just to learn...

I guess there's one plug-spark per engine rev (on a gasoline 4-stroke), but unless it's a direct-drive system, is it certain that there's one blade rev per engine rev?

"... full length sharpened blades ... aids in high speed high volume cutting quality" because there's less air resistance, because cutting takes place other than at the tip, or both?
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