How did they find me?

[frau kaleun]

Originally Posted by Akela

2) If the warship did cause the original damage how did he find me? Am I making enough noise at 40m on 1/3rd to alert ships around me?

If they have passive sonar (the equivalent of your hydrophones) that will pick up sounds from a submerged vessel - then I'm going to say, yeah, that will make enough noise for them to pick it up.

Also I don't remember offhand how deep the water is in and around Scapa Flow, is it possible you entered an area too shallow for your 40 m depth and grounded the boat on the sea floor and took damage that way?