Re: Anyone completed ASA 114? Or 214?
a broach/rounding from a deep point of sail to a higher point loads up the lee bow, depressing it, at the same time the boat is trying to lift the weather hull, at the same time the boat is passing through abeam, the more powerful point of sail ("death zone"). And the boat is 'spinning,' which to some degree expresses centripetal force which of course is also acting to push the boat over and lee hull down.
I don't explain myself very well, but after 25 years in multihulls, it's kind of intuitive. One of the first things you learn about sailing a Hobie 16, after learning how not to just fly the hull too high and take it over that way, is how to avoid pitching it, and an H16 just loves to pitch. There's a funny somewhere on the Net about "50 Ways to Leave Your Hobie."