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Old 06-14-2015, 04:48 PM   #2
pmdec
 
Join Date: Nov 2006
Location: France
Posts: 468
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Hi,

IMHO, your snippet shows a projection of the blade thickness. So you have to divide the projected thickness by the cosine of the inclination of the blade vs the axle of the prop in each point. And then you have the blade width (length of the cross section).

If you have extracted the snippet from the Guéret book, all is explained inside. Btw, it is a correct practice to name the book from which you extracted something... Even it is in public domain

Are you making props?

Regards,
PM
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