Active Sonor Evasion Tactics
 

Are there any tactics for evading an active ping? Earlier i tried making a line of active decoys, then diving deeper, and the enemy seemed to completely ignore them when they came. Also, i made a SC map for DW-China Survailance- and it seems preatty ruined because somehow the chinese Frigate to the south immediantly detects me with active pings and closes in-at 5 nmi, 15 knots.

The best tactic is just to keep your distance. 5 Nmi is pretty close, really. Go around them. There's no real reason to be that close.

A good yard stick for determining whether you're near or far from a target is your torpedo range. If you figure an ADCAP has an effective range of about 10Nmi in DW, then you're at 50% of that. By the standards of other boats, you're a little farther, but not much. You'd also be almost within range of a surface ship's torpedoes.

Also your aspect to the pings matters. You must minimize exposed area of the sub by turing either toward the pings or away from them. Sides of the sub can reflect more sound and makes you detectable from a much longer range.

CM are useless .. use the distance and aspect. And torpedoes when needed.

Hi, I´m new to the game. I was wondering if staying very close to the sea bottom in a sub (let´s say, 10m under the keel for example) could help being undetected by active sonar, since the ship couldn´t determinate if you ar a sub or a rock in the bottom??

Thanks!

From my own play and what I see as far as how the database is constructed no your closeness to the bottom doesn't account for much. However, where you are in the layer makes a difference as well as the type of bottom (rock, sand, or mud) from what I see.

Very true. Aspect angle and being on the other side of a layer are the best chances to avoid being detected.

Sometimes the enemy boat thats pinging might get a audio sound return but not a visible mark. Meaning they might have a range on you and not a bearing.

This maybe can help IRL, but in the game something like this is not implemented.

Seabed type does have an effect on sonar. Rock will give you a good return, mud less so I think.

I'm not sure if it effects passive sound though.

Bottom type is a parameter that partially determines detection range, but being close to the bottom does not have an effect on whether the active sonar can sort the sub from the bottom. I've tested the theory by bottoming a sub on a rock bottom after putting the sub at maximum possible detection range....it still showed up. Plus, at shorter ranges, there was no discernable difference between the size of the visual returns of a bottomed or non-bottomed sub from either front or side aspect. Clutter just isn't modeled.