On Thu, 15 Sep 2005 12:23:38 GMT, "xerj" wrote in
::

Every time I think I have it sort of worked out, I fall in a heap. I've read
through "See How It Flies", but it's still a bit beyond me.

I can understand why a spinning ball would create a circular flow around
itself, but I can't really grasp why a wing would.

Does anyone have a lay explanation as to why?


Perhaps this will help: http://aerodyn.org/summary.html