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Old October 7th 07, 11:31 PM posted to rec.aviation.piloting
Bertie the Bunyip[_19_]
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Default Backwash Causes Lift?

Mxsmanic wrote in
:

flightoffancy writes:

I don't deny those facts; but the greater the curve of the wing the
more the air pushes down behind the wing.


If that were so, then an airfoil with a half-circle for a
cross-section would produce enormous lift. In fact, this isn't the
case.



Actually, yes it is.

Fjukkwit



Notice the smoke flow in the photo I link to below:

http://www.aa.washington.edu/uwal/uw.../tech%20guide%
20pics/smokeflowvis.gif

Granted it's at a high AoA. I'm just concluding what I have read
about wing curvature is consistent with what I see the smoke doing in
the picture.


But it would do the same thing with a flat airfoil.

The explanation of why wings with greater curve bend the air down
more I wouldn't want to say without studying aerodynamics more
thoroughly.


A greater curve does not increase downwash, unless it also changes the
effective angle of attack. AOA is everything.


No, it sin't everything, fjukktard


Bertie