Newbie question: How do you place your shots that accurately? I'm glad if my torpedoes actually go the way they're intended, usually it's a few degrees to the side (and I don't know why).
Luckily, I've just downed a juicy T-3 with one eel (broke its back). I'm currently off the Northern Irish coast. It's such a peasouper up there that I can't make out any targets until they're 500m in front of me

It all goes so quickly that I'm lucky if I can get a shot at them at all, let alone aim for a specific part of the ship.