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Old 05-29-2007, 03:33 PM
LEVERETTE5 LEVERETTE5 is offline
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Join Date: Mar 2006
Location: Florida
Posts: 150
Default Re: How much can 1/4\" diameter diff in prop size m

well my new {14 1/2 X 17} only gave me another 100 RMP.Im not good at math but this would agree with Frank.I think I gained about 400 RPM going from the 19 pitch to the 17 pitch but gave 300 RPM back with the diameter increase of 3/4 inch. Frank said 1/4 D is about 1" of pitch.This would be the not paying attention charge. Thanks Keith
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