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Old January 8th 06, 10:51 AM posted to rec.aviation.soaring
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Default winglets

Ken Kochanski (KK) schreef:

"The rest is generated by lower pressure on the upper side."

hmmmm ...



Erik Braun wrote:
Hi Wayne,

yet the majority (?) of our lift is generated from the
HIGH pressure BELOW the wing.

No, it only generates 1/3 of the lift. The rest is generated by lower
pressure on the upper side.

I recommend you read
which explains the design and function of winglets.

Greetings, Erik.

But I`m teaching aerodynamics in my club and it is extremely hard to
explain this to people. I don`t want to confuse people with vorticity
fields so the explanation "pushing air down will result in an
underpressure on top and an overpressure on the lower side of the wing;
that`s lift" seems to be sufficient for the understanding of lift as
far as gliding is concerned.


Not too smart to post when you`re just woken up. For those who wanna
know why, just take a look at my last post ;-)

Jarno Nieuwenhuize.
The Netherlands


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