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Originally Posted by tevake
Speaking of surviving the tow, how in the world did that ship with the gaping whole in the port side make it to the dry dock?
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Its called watertight bulkheads. First used on the Titanic, but they didnt seal them onto the deckheads (ceilings) so the water ran over the top into the next compartment. A watertight bulkhead stops water flowing from one compartment to another. I cannot remember the specifics, but I think ships are designed to float with up to 60% of the hull flooded (3 out of 5 compartments).
The pic below is of the collision bulkhead which separates the bow from the rest of the ship. This 1st bulkhead is reinforced to help against collisions