Empty Ocean?

[Armistead]

Originally Posted by doulos05

Wow, it's 20-30 nm!? I thought the contact zone was based on your actual equipment, not the "war's best" equipment... I'm gonna have to revise those contact lines I'm drawing....

With sonar, again, the best contact zone is always around your sub, mods can change it up, but the AI can only take advantage of it as they gain better skill and equipment. Early war the sonar AI will hear less, as equipment improves he will pick up ships much further, near the wars end they can pick up almost to the contact limits. You will always be able to hear or pick up ships as far as the contact limit if you take over sonar.
Obvious no one has been able to correct by placing seperate zones for each piece of equipment, so it's often referred to as the lag trick or cheat.

Next time you notice lag, but no AI contact, ping the sonar bearing ASAP, that should give you an idea how far the zone is for your setup, maybe add a mile or so for the time spent lagging.

Other factors do effect sonar, weather, your depth, thermal layers, etc...
Don't trust those enemy sonar lines, you can be below the thermal and they may be much closer than the line shows.