I found that article by Gino Marelli very interesting, re. their designing of the foiling AC 72's. In it he said it could be done much cheaper and safer, if they were allowed to have adjustable flaps on the foils, or rudders, to control the ride height. He also said the hard wing only adds about 1-2% speed but doubles the cost, due to the wing team needed to take it down and put it up every day.
Makes me wonder if the cheaper/easier stuff will eventually trickle into the A class, like the Moth class, with more a more stable platform.
