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Old 05-12-2004 | 10:20 PM
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FHHuber
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Default RE: Three Blade Prop Sizing >
Start with your known appropriate 2-blade prop.

At appx .40 size engine... you drop one inch dia to add one blade.

Somewhere near (slightly above?) .60 size... the loading changes such that you drop one inch dia AND 1 inch pitch to add a blade.
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