Tom Kirkman :
Tom as usual of course you are probably right. But it sure is fun playing with this stuff, and you never know if someone comes up with a trouble free easy to use wing sail design that is simple to use and doesn't cost more than a standard sail. Being 2-3 times more efficient over a standard sail. What comes to mind would be the Hobie Kayak sail, someone could design a way more efficient Kayak sail that doesn't have hardly any healing moment trying to tip them over, I see this as a practical application. When I built my wing jib I designed so it can be used either as a jib or as a kayak sail for my tandem island for use without the AMA's (the standard hobie kayak sail is too small for a TI). I'll take a video next time I go out. If I still had my Revo I would have built one for that, but I sold my last Revo last year.
When we first got into Hobie kayaks a long time ago our favorite pastime was sailing our Oasis and Revoutions around the Keys, I can't tell you how many times I fell over and got wet, with a wing sail the likelihood of that happening would be very slim, and the wing is 3 times more efficient, and shouldn't cost anymore (basically the same materials, just a slightly different design working on different principles).
Same goes with my old Sunfish, I can't tell you how many times I capsized my Sunfish (usually at least once or twice per outing), if I had a wingsail it would have been way more fun and way faster with much less likelihood of capsizing.
Even a Bravo or Wave would benefit from a wing sail, much better speed and stability. I'm not talking about crazy contraptions like this ( http://www.solidwingsails.com/
), I'm talking about proper wing sails that from a distance look no different from a conventional sail, and shouldn't cost any more to make, and break down exactly the same as conventional sails (either by furling or by halyard). You are just starting to see these on some of the windsurfers rigs.
The same goes with foils, if someone can come up with a simple automatic foil design for cats and tri's, that basically works automatically as a no brainer I can envision foils being supplied on many future cats and tri's.
Even your trifoiler, if you were to update the sails to wing type sails, your performance and capability would improve considerably. Keep in mind your Trifoiler was designed back in the 90's, nobody knew anything about wings sails back then. Wing sails work on different principles, and just didn't exist when Ketterman designed the Trifoiler, just imagine if he were to re-visit that design with what he knows now (WOW).
Unfortunately none of this will ever happen because of the class rules that stymie the entire industry (just my opinion).