Was an interesting show.
But he got it wrong.
The stern of the ship wouldnt have gone down prop end last unless it was still attached to the front half of the ship. Which I beleive acted as a sort of drag chute slowing the decent of the bow. This explains the manner in which the starn went down. why the stern didnt roll over or settle and go down level or prop end first. It also explains why the bow suffered so little damage from hitting the bottom and why the stern was such a mess as it was mangled from the forces of being dragged down like a chute towards the bottom. At some point in the way down it separated and they did hit the bottom as separate peices. But not before they went down a considerable distance joined together at the keel.
Actually he most likely has it right...
Considering that water would have already been in the stern part which would cause the a nosedown angle and the fact that the front of the stern part would be considerably more nose heavy due to the structure, there would be no reason for it to go down prop first as its own peice. The Titanic Broke along the expansion joint which was inbetween the 3rd and 4th funnel. Located in the stern section right at the point of breaking was be the recip engines and the turbine engine, which were the largest and heaviest engiens built to date. Considering how there was no flooding in the stern from damage, there would be force to shift the stern from going down front first compared to props first.
Also, Remember, doors would be open and porthole possibly open as well, so air would have plently of places to be able to escape.
