Interesting Martyn. I wish I could have seen that documentary.

Although this scientific study of the mixtures in the iron is interesting, I still seem to think it is somewhat irrelovent to an extent.

I remember Charles Pellegrino in "Ghosts of the Titanic" stating that he saw puncture wounds in the side of the ship near the bottom hull, as if a bazooka had been fired at the ship.

He also stated that a (research ship?) he was on hit a small berg or growler, and it produced a similar puncture (this was modern day steel mind you).

I guess maybe the difference in metal quality could have produced more flooding, but I seems to me if the iceberg could punch a hole the size of a coffee mug in the middle of a hullplate, not many rivits on earth (no matter how they are made) could stand against that force. I don't know!

Do you know if they ran tests to see if modern day steel could stand up the the same damage (other than hitting a chunk of steel with a hammer as they did on previous documentaries?)

Its topics like this that really make me wish they could really see that iceberg damage under the mud!