Playing with NYGM so I guess i can blame myself. Came across a task force with a nelson and a revenge in the middle. I lined up and put 4 torps in Nelson's port side but she did not sink ( I should add that the torpedoes were very well spaced and not all in one spot), after an hour or so she started listing a little bit to the side but she didn't slow down at all, kept up with the task force and disappeared from my sight 4 hours later.
Has anyone actually managed to sink a nelson with NYGM? From what I've read battleships do not take that much beating to go down. 3 hits out of 4 really should do the trick. Maybe you just need that critical hit to take her down...