This was 20-odd years ago, so I can't swear to anything. But the way it was explained to me, the boat had air pockets fore and aft to make it unsinkable, which

This was 20-odd years ago, so I can't swear to anything. But the way it was explained to me, the boat had air pockets fore and aft to make it unsinkable, which is why they chose them for their student boats. But that in this one, the rear one hadn't been sealed properly, so water leaked in as we were trying to get back to shore. They were certainly embarrassed about it. But so was I, so we just called it even. Digging around, this was the place: https://www.yelp.com/biz/chicago-sailing-chicago-2?rr=3 https://www.yelp.com/biz/chicago-sailing-chicago-2?rr=3 The history described there matches my memory of it being a J/22.