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Couple of blade construction questions.
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11th Aug 2008, 15:43
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Graviman
Join Date: Nov 2004
Location: Cambridgeshire, UK
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Solidity Ratio (Sigma) is the actual blade planform area divided by the disk area. It is a means of non-dimentionalising various rotor performance coefficients. The assumption is that the hub area is trivial.
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