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Old October 3rd 07, 06:05 PM posted to rec.aviation.piloting
Bertie the Bunyip[_19_]
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Posts: 3,851
Default Backwash Causes Lift?

Le Chaud Lapin wrote in
ups.com:

On Oct 3, 10:34 am, wrote:
Both Newton and Bernoulli are correct. Even inside a pipe the
static pressure drops as velocity increases. That's why your bottom
table jumps as you yank off the top one: you accelerated an airflow.
And in generating lift there's a displacement of air. Can't escape
that at all.


Also, if you don't mind, I would like to understand what you mean
here.

It's not clear to me.


Couldn't be clearer and it's really all you need to know.

Go out and fly now. If you ask any more questions I'l just hand you over to
Anthony from now on.



Tough love.


Bertie