[ofalkaed]

If hit just right it would destroy the boat but that is a one in a million hit. The shape of displacement hulls and their need to part and push the water aside so they can move through the water will almost always mean that small boats will be pushed aside and damaged but not sunk. An open boat (which a small number of 30' sailboats are) would be a different story, the hit would almost certainly heel them enough to flood and sink them, but I think it is obvious that I am not talking about open boats but boats with a deck and a cabin that you can live in. I could be wrong in that assumption, many do not know the difference between an open and a decked boat and I could have been more clear there.