hammy wrote:I know of no research specifically on Bismark , but you are looking at a wreck there with large areas of heavy plating , let alone the extensive armour , the subdivision , etc . Looking at the salvaged U S N " Monitor " of 1860 gives you some indicators as to how long the heavier bits will last - tens of thousands of years ? and as you can see from the many debris photos of Bismark posted here in the forum , even light structure is showing little deterioration .
Titanic was built in a different metalurgical era , and we know the material used was not the best available , but was the most economic consistent with the ship's role and anticipated life of the hull . Also in her case , the strength was designed down to an adequate standard , not beefed up to the maximum .
In automobile terms , you are comparing the sunken durability of a luxury coach against a main battle tank .
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