it's ment to be round about 50 years before the whloe frame of titanic as we know it now will collaps in on it self from the humense pressure and aswell its because of tiny little microbes that feed on the iron in the titanis steel thats why you get rusticals on her. but there are parts that will always be there and thats anything made out of solid brass as they cant eat this so they say.

and aswell it sound like they stoping mostly anything to do with tianic for some drastic reson