On Wed, 2004-07-28 at 14:28, Erik Hofman wrote: > Jon S Berndt wrote: > > On Wed, 28 Jul 2004 22:56:59 +0200 > > Erik Hofman <[EMAIL PROTECTED]> wrote: > > > >> This is exactly the reason why pressure is build up underneath the > >> wing (pushing the airfoil up on air molecules == force). > > > > > > No, not really. See: > > http://www.av8n.com/how/htm/airfoils.html#sec-consistent > > Try this for a start: > > An airflow over the wing is causing the downwash at the end of the > airfoil. The airflow below the wing is now kind of captured between the > airfoil and the layer(s) of air underneath itself. > > In this situation it can go in just two directions, up or down, The > majority of the flow will go down, bu a tiny fraction of the molecules > has to go up. If the number of molecules that go up is high enough it > will lift the airfoil up with it. > > This is really what DaVinci already had discovered back in 1530-something.
I hope you guys realize that this is an ages old debate that still goes on in the relevant academic circles. > > Erik > > _______________________________________________ > Flightgear-devel mailing list > [EMAIL PROTECTED] > http://mail.flightgear.org/mailman/listinfo/flightgear-devel > 2f585eeea02e2c79d7b1d8c4963bae2d -- Tony Peden <[EMAIL PROTECTED]> _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d