Hi Wouter,

Quote
As an aerodynamists you have more then enough learning and experimenting to do on your F16 !


That's one of the reasons way I changed from Dart 18.

Thanks for the details, so far they are clear for me. We have noticeable wind shear only a couple of days per year, hence 'my light wind', is what you call medium wind. My concern is, that (maybe) I have used already all trim to reduce twist and still the lower part stalls first, even with maximum outhaul (e. g. not to much draft). Or is it maybe not possible to close the top of a square head sail? So what is with your sail with maximum closed leech, stalls at the top or bottom?
Next week-end I will try to relax the dimaond wires even more (spreader rake is not adjustable on my boat <img src="http://www.catsailor.com/forums/images/graemlins/frown.gif" alt="" /> ).

BTW: Are you a soccer fan? Excellent play of the orange team, maybe we will see another great match between Geramy and the Netherlands <img src="http://www.catsailor.com/forums/images/graemlins/blush.gif" alt="" />

Cheers,

Klaus