Sorry for the absence, but I have been working my tail off on other stuff.
Wouter, don't disagree with your wind v. height stuff and I probably didn't explain myself clearly when I said I liked mini sweepers. I also misunderstood the flap idea, and I agree that is not a good solution. However, what does work is a mini sweeper, and not because it produces more power, but because it reduces the drag by straightening the flow at the base of the mast, the swept up head also does much the same. There are some comparison pic's of a quickie VLM model I did at http://www.catsailor.com/forums/showflat...true#Post124769
that shows a simplified approximation of what I was talking about.

To whoever asked the question about sinewave stiffeners, its just a panel stiffening method, basically you hotglue a bunch of cans to the panel in an arrangement that produces a sinewave shape once you lace a small amount of carbon uni around them, saves on having to build foam bulkheads or wooden ones for that matter...which save both weight and the amount of work required.
As for the luff length restriction, Im very much against that...period.

As for boat building, I have delivered plans for 5 boats so far, the other 4 will be delivered this weekend, and I have talked to people that are considering building, that total another 19 boats, whether they all get on board is anyones guess, but it does show that the class has promise when so many people are interested.

Cheers
RG