It doesn't work like that.
The sonar model is fairly complicated. A single ship can ping away all day and if the sound waves aren't bouncing back to his array with sufficient strength, he's not going to pick you up at all.
Also, a single helo that dips right on top of you can have you fixed with a single ping.
My advice is to play some time in a contact rich environment with truth on, trying various sensors on various platforms. Keep in mind, all ranges are highly variable based on acoustic conditions and platform orientation.
Cheers,
David
__________________
LW

|