Answer by Willk for Can a feathered wing be also compliant?
If the pterosaurs had fenestrations with flaps in the wing, those could simulate what feathers are doing.Imagine the pterosaur wing: an unbroken flap of membrane. Now put holes in it. Under each hole...
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So, to quote pterosaur.net:Unlike the wings of birds, the wings of pterosaurs would have tended to change shape under aerodynamic load - something often referred to as 'passive cambering'. Camber...
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