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Old 01-05-2003 | 10:34 AM
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Steve Lewin
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From: Reading, UNITED KINGDOM
Default 4 Blade Props
Keep the pitch the same and reduce diameter by roughly 10% for 3 blade or 15% for 4 blade.

11x6 gives 10x6 3-blade or 9.5x6 4-blade

20 x10 gives 18 x 10 3-blade or 17 x 10 4-blade

Steve
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