Albatros
Do you really think that two very old aircraft are a more valid comparison than Sully in the river?
The 777 is a tank as has been proved by various recent accidents.
The airframe does not have to be immaculate to sink with little trace, merely hold onto its larger parts (wings/tail) and the pressure hull must be sufficiently intact to retain all the poor buggers inside plus cushions. That is not outwith the bounds of possibility.
p.s. Can the people who keep saying that water is as hard as concrete at speed please stop being silly. It gets no harder at any speed. It is still water. If you fire a pistol into water the bullets penetrate a couple of feet. Try that with concrete.
