[sonar732]

Originally Posted by Stanny

Hello everybody,

I am the driver of SSN-21 Seawolf in Sub Command 1.08 SCXIIC.I am trying really hard in practicing manual sonar operations on this great submarine.

I can't find any sensible explanation for such phenomena,that sometimes occurs during my missions.After tracking surface groups for some time,I suddenly loose contacts on all sensors.That looks like this:STA broadband waterfall dispay is showing a huge amount of background noises,narrowband display is showing just a row of equally high peaks.Switching to towed array gives sounds of loud noises in all bearing ranges,no contacts are shown on sphere array.

That situation can be corrected by changing course and depth of the sub.After doing so,you gain back normal pictures on both broadband and narrowband displays,and can establish a contact again.

Does anybody know,how to explain those sudden huge noises?I must stress that speed of own sub is very favourable,I mean from 2 to 5 knots.

Thanks everybody for your help and have good hunting guys.

Regards,
Stan.

Sounds like your towed array is dragging.