Enemy Hydrophones

[vdr1981]

Originally Posted by Mowgli

I also use the 55rpm silent speed to creep away.

Use F8 key to activate all "silent abilities" and observe how they effect orange detection circles radius in real time...Keep in mind that you 'll be able to see hydro circles only if the unit is detected by your sonarmen. Be extra careful about your hydrophone deaf zones...

But the question that I worded so badly should have been something like this. If I am traveling at slow speed 100 rpm and am 600 metres away from their hydrophone circle am I out of their sound range or should I shut down my engine?

Yes , you can rely on those circles...