Pretty nice video, thanks Neal!
However, two things bug me:
1. The Sound guy reports ship contacts while the submarine is still on the surface and doing 6-7 knots( "Halbe fahrt")... Is this possible? I don't thinks so.
2. The watch officer (or somebody from the crew) reports new ship contacts whispering. Why does he whisper while the submarine is on the surface and the diesel engines are still working? I can see no point in it.
Sorry for the "negative vibes".