Richard, I'm terribly sorry but I'm irritated beyond belief by this poster and his post and I can't contain myself. You are really too kind to respond. I don't have your patience.
Anyone who claims to be an aerodynamicist but can't spell it, nor appear, nor clues, deserves to be ignored.
I've ignored the "trounle" typo as we can all do that, but some attempt at punctuation would have shown a degree of tidiness of mind that would have made it worthwhile trying to help.
So, Mr D, go away and order you mind; come back when you can structure your problem in a way that will inspire a willingness to help you.
Phew!
