I was on my 8th patrol just outside dakar at the african westcoast.
The weather was crap, just about 50~100m visibility at most.
On my way home i got the warning " detecting radar signals" then i went to periscope depth and my sonarman says "warship closing at bearing 010 moving fast, i had to check if a could see the warship, and just when i was scaning the surface i got the same view in das boot when the uboat almost got ramed by the destroyer.
It was a really good flashback to Das boot