One option is to let her go. Two fish, hit them near the engine room if possible, blow up her boilers and maybe a third aft torpedo to get hew screws if she hasn't stoped yet. Then you wait. I remember waiting for a ship to sink in the convoy attack tutorial for over 4h. It had 2 torps alredy and was showing signs of flooding. It was a tramp steamer. I finish the second tramp steamer with my deck gun. Then I stop, set TC to 1024X, sure she will sink. I have realistic sinking times on (for the ships). After 3h, I decide to man my DG, set TC to really high and keep pressing spacebar. 60 shells later on the waterline (I use GW, so DG is less powerfull) she finaly starts to sink.
Small ships are truly strong!
I prefer tankers. Right shot "BANG!!!"
and she's ablaze or exploding!
