On Wed, 23 Sep 2009 19:17:19 +0200, Szczepan Bia?ek
wrote:

If you cannot give us a Reynolds number (something like any mechanical
engineer like Art can do - well, yes, I admit that is an unwarranted
presumption on my part), then you may as well let your boat drift on.

I have onmy shelf the Fluid dynamics by Dr Ludwig Prandtl. Prandtl is a big
name.

Too big to comprehend?

73's
Richard Clark, KB7QHC