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post #15 of Old 04-02-2004
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what''''s up with sail twist?

Your statement of ''conventional wisdom....." is profound!
Hint: Compare the ''twist'' on such things as turbine blades and propellers to the ''twist'' on sails. You''ll find that for regimes of greater ''tip speed'' you''ll find correspondingly less ''twist''; the ''conventional wisdom'' here avoiding that the greater the velocity over a foil/wing requires LESS angle of attack and less camber, etc. Just an aerodynamic fact. You dont ever want to disagree with the conventional ''experts''. But then again the same arguements will apply to ''slot effect'' vs. ''conventional wisdom'' ;-)
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