That is really cool and looks like a lot of fun, but I would hate to see the F18 class with foiling daggerboards.
I really doubt that would happen. In this case, I bet its pretty in pictures while sailing at certain angles - but I bet it is unable to foil while sailing upwind and is very very slow. I also can't image using that from a practical standpoint - putting in boards from the bottom of the boat, clearing weeds (eeek!).
