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Old 4th Jan 2017, 15:32
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Concours77
 
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Hi.. " ...piano-type hinge like the Cessna 172's, then by definition it can't be a Frise type as there's no path for the airflow around the leading edge." From Dave Reid

The drag is created "passively". No "drag" when the aileron deflects down....

Whether or not a design feature, the "Frise type" action mimics a full length "spade".
So, a rose by another name? The fundamental foundation in design is the "consideration".

The Wrights used wing warping, not entirely a primitive design? There is a program at Edwards which flies an FA18 with warping wings to establish roll. Really.
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