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Old May 12, 2007, 12:13 AM
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Fresno, CA
Joined May 2005
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10 X 8 prop = 10 inch diameter, and 8 inches pitch. This is referred to as geometric pitch - if the prop were turning inside a solid (like a screw going through wood) it is the number of inches that it would travel forward. No propeller ever performs to the true geometric pitch, the prop actually travels less. The difference between the geometric and actual pitch is called slip.
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