Since it 's a dipping sonar, my assumption( supported by no sources ) is that it 's not intended to be lowered while the vessel is in motion.
The hydrofoil being as fast as it is would probably allow it to move to the general area of a suspected submarine contact much faster than a submarine could leave, then direct a more substantially armed, but slower or less sensor-equipped large ASW vessel to make an attack.
Though it still has guns for self-defence against similarly-sized ships or aircraft, and the acoustic torpedoes for if a discovered submarine is close enough for them.
Guess that makes sense if you want to listen below the thermocline although I can see why it didn’t catch on. If you detect a submarine, you probably don’t want to be a sitting duck waiting to reel your sonar back in
I’d see Dutch subs starting at the K XI class, then the O 19 class, then Dolfijn. Something like in a Dutch subtree. I did actually do a thought exercise like thing and worked out reasonably full sub trees for the UK, USSR, US, and Germany
Oh yes, definitely! That’s literally going to be Silent Hunter!
I remember in SH5 entering Shapa Flow, sinking the Royal Oak, several destroyers and a cruiser, leaving after a full day evading some other DDs and then just outside the base seeing a full Task Force with Hood in the middle! I sailed right below them, that was so epic!
