Quote Originally Posted by XThe NavigatorX
Thanks. I didn't realize that removing it from the water was more dangerous than leaving it in. That's important.
This is why some shipwreck recoveries are so controversial -- such as raising The Titanic. Unless you have a plan to prevent the damage caused by this oxidization, it's best to leave the ship where it is in the water.

On a side note -- not only metal ships are at risk in recovery. There are some wooden ships wonderfully preserved for ages in "dead" (i.e. no oxygen) water that can be destroyed if raised to the surface.