Hunting in risky depths eh? I have no idea how you calmly flowed through the Irish Sea on the surface. Even in 1939/1940 I run into hostile ship after hostile ship. I think my next campaign will rule out following convoys into shallow water like that. That's how my last three have all ended in late 1940.
Glad you survived yours though
I had a similar experience last week, but had to abandon as I had no engines left and was travelling at 0 knots.
Time for another radio qualification? Either that or court marshal him for not paying attention.