Appreciate the greeting/welcome, Gunnar.
Sorry about the tardiness of this reply. Be advised I am in absolute awe of the expertise I am already seeing at/in this site! The writing is excellent: like a breath of fresh air to find a bunch of folks who actually appear to use their educations AND SpellChecker! And, I have learned more in the last week [about Ken & Stu's creation] than I have learned in the last couple of years. Again, thanks for your info on the airfoils. Cordially, s/s WxBY _jtwxby@aol.com_ (mailto:jtw...@aol.com)