I was told during initial ground school on the Herc that there had never been a successful ditching in a Herc. The forward section snaps off forward of the wing and immediately sinks. Maybe someone in the tail could survive but in the cockpit, you are a goner.
Why then we went to survival training in the hotel pool with life vests and rafts is a wonder.
After 5,000 hours in the old girl, still one of my favs