I was looking at some random Youtube videos and came across this one. An amazing test video of a B-24 being ditched in the water on purpose. From what I have read the B-24 was a terrible airplane to ditch in the water. It tended to break in half, like this one does.
https://www.youtube.com/watch?v=WjadMxpXprk#t=27
https://www.youtube.com/watch?v=WjadMxpXprk#t=27