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Old 02-23-2005 | 10:49 PM
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exeter_acres
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From: Johns Creek, GA
Default RE: Spinner Sizing
the basic formula is 20 to 25% of the diameter of the prop.....but it is also up to you and what will fit your airplane the best....
depends if there is a cowl etc. etc.

but I have found the 20/25% rule gets me in the ballpark to start looking
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