I race Moths and Windmills, and like most dinghy sailors assume that capsizing is part of the game. I have twice in the last few months observed a Hunter 170 capsized and unable to be righted by the crew. The first time the board stayed down, but because the boat is so wide and floats so high, the crew cound not get up one the board again after failing to get her up the first couple of trys. By then, then mast had sunk, and the boat turned 130 degrees. A motorboat was required to right her, and even that took a lot of effort. Today was worse. The mast sunk and bent, the boat turned turtle, the board fell into the trunk, and the two crew sat on top unable to do anything. Since the mast was stuck in the mud the boat was not moving. Nothing I could do from my Freedom 21 with the crews help would right the boat, even after removing the rig. Yes, I could have gone into the 50 degree water, pushed the board up (down) from under the boat while someone on top grabed it - yeah right. I had already seen how hard it was for these guys to get up to the board from the water with the boat at 130 degrees last time and was not going in myself. I wound up towing the boat in upside down. A dinghy that is too wide to right easily is not a seaworthy dinghy.