How is this possible? I mean really......
I am not familiar with the boat at all, but how big does a rubber on a boat have to be to snap and create a hole to let enough water in an hour to flood and sink a boat.
Was the owner on the boat? They had six people on the boat. Couldn't they figure out a technique to slow the egress of water in to a point that the bilge pump to somewhat keep up? I mean if it was me and my boat. I'd sure as hell would find something to stuff into the hole to help slow the inflow of water.
The displacement on the boat is about 15,500 lbs and it has a keel about 5500 lbs, 10,000 lbs is displaced water weight (roughly). Let say it takes 3500 of additional weight to sink her, that is roughly 400 gallons of sea water, 400/60 is a little under 7 gallons a minute, which is not that big of a hole, I can't see how that could not be partially plugged to reduce the water flow. What happend to the bilge pumps. Are not most bilge pumps set up to handle much more than 7 gallons a minute?
I don't see how this could happen with a competent owner/caption on board.