Hi LW!
Values between +14-:- +17 for passive sensors torpedoes ( Nrd [-127... 128] BD Sensors Par. ) TOO small.

I have established these values in Spchere Sonar for SSN-21, and has checked up as it searches at my LAN station. It never can find out somebody in passive contact!
There is no contact - doctrine does not work!
I have checked up the doctrines - ordered speed of a torpedo in the doctrine always will be executed a little not correctly.

(Hardcoded torpedo random speed always...)