Now, I must say that I take a different approach to class rules and how to do things than the F18HT class but a crew can just as well survive on the remaining hull that still floats.
And I know that sailing an F18 or F20 (inter 20) with a holed hull is no picknic either.
But then again there is a distinction between surviving and limping back to shore yourself.
But this problem can easily be solved but adding a floatation rule to the F18HT class rules.
Wouter