All I know of are Nixie torpedo decoys, but they're not an active kill mechanism but rather just a distraction for the torpedo.
Nixie has been proven to be succesfull 6/10 tests that have been done before fit on nl ships (read that in the maps with information about nixie because i had to. Its for weapon techs people)
What nixie does is creating a massive sound underwater far away from the mothership. And tries to attract the torpedoe with it.
If this doesnt work. A 2nd nixie might will. And otherwise... Meh i hope i will never know
Current days a new system from thales is under tests.
Im departing this year with the amstel who has the system.
I heard its called Lectas or levitas. Whatever.
We are going to test it with torpedoes from submarines.
But this system is a passive and active listener and a 3rd distract option.
It is planned to replace the tactas.
These 2 systems are the only systems i know for anti torpedoes.
For the rest i know is when shooting underwater.
The bullets slow down. And are less effective.
You better use underwater grenades instead. More chance! Haha
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Fryssian AU with Lt.Maverick 114
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Embarked on: HNLMS Karel Doorman A833
To do list:
-Zeven Provincien class cruiser
-Joint support ship all sides
-F124 Sachsen class frigate
-F125 Baden-Württemberg class frigate
-Clemencau class aircraft carrier
-Zeven provincien class frigate
-Poolster class AOR
-Amsterdam class AOR
-Minas Gerais aircraft carrier