I don't personally understand how breaching an aft motor
compartment that is sealed from the rest of the boat can flood the rest of the boat. Many of you will remember the video of the freighter ramming a Fountaine Pajot
(Belize I think) cat that had both engine
compartments flooded. The story is that a whale popped up under the starboard (?) saildrive
which pushed it through into the engine compartment. Then that compartment flooded enough to allow water to cross from that engine compartment to the other. The owner then called for rescue
I've looked at the engine compartments of the FP Bahia
, and Marquises and can't figure out how the water can actually get that high in the engine compartments. it would have to flood about 3 feet above the water line. I can see that the loss of bouyancy from 10' of the hull
would allow the boat to sink maybe 1' lower in the water, but not 3'.
A comment was made about the foam in the stern being located high in the compartment. Any opinions on that? On my new boat, it doesn't have any foam in the engine compartment. It is located below the aft berth next to the bulkhead separating the berth from the engine compartment. I would think you would want foam low in the hull to displace water if the hull is breached. Being inverted is less likely then being flooded, IMO.