Comment by kqr
2 years ago
Yes and no. The thing you describe happens, but it's not enough to explain the amount of lift generated by a wing, because a surprising amount of air hits also the top of the wing! The difference in pressure between top and bottom wing surface is just a few percent.
The reason wings produce significant lift anyway is that they deflect air far beyond their surface. Air several metres away from the wing is also deflected downward, even though it doesn't actually hit the wing itself.
So yes, Newton's third law is involved, but in a "spooky action at a distance" form, where the wing somehow manages to deflect a bunch of air it doesn't even touch!
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