In the english Channel !
God !
I know what is it: you have probably tuch the bottom of the sea.
I have sometime the same problem in x 2048, it's the same like you because no time to secure the ship.
Also it's maby a destroyer because you can't be absolutly invisible in the channel.

It means that if you had been present it would not have occurred.

You can now reload the previous save point without sadness.

GO again and hang on.
:up:

PS:
Yesterday I tried to play partially like you.
Whenever I have to go up for batterys, I still x1.
The game takes another dimension.
In addition, I was in AN18, maximum 95 m of deep !
The planes and destroyers at all times and I was never quiet, no time to ear music, always in alert.
And in june, never night...

Giant.

That means if you want to play TC1 realistically, you must do it while you have access to your computer. Your crew should react when a ship is spotted. You could let the game run even when sleeping. If you put the sound loud enough, you should hear your crew if something shows up. I remember reading something along those lines in another post about TC1 patrols.

But personnally, I don't see the point into crossing seas without anything happening. Why bother puting up with that? :doh:

Stay Away From The English Channell!!!!!!!!!!!!!!!!