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Originally Posted by Pishky
Hi there gurus.
I would be really grateful on some tips as how to manage a large number of contacts. I have been trying to play a scenario in which you have to find and sink a kilo submarine. The problem is that there are many approx 12-15 other contacts including surface ships, bilogical entities. When you look at the waterfall display it is a total mess, thick lines, thin lines,overlapping lines and to make things worse you can only assign at most 8 trackers. I cannot even differentiate b/w real and phantom contacts and have no idea which contacts to ignore, which to track. Any ideas??
Regards
Peter
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Whenever we found ourselves in a high density contact environment, the foremost issue on our minds was the range to the closest contact.
Without tying up too much time trying to use complex TMA to do the math, I would always recommend turning the ship slightly to see which sonar traces break left or right harder than the rest. For those contacts with harder breaks in their sonar traces, I focused my TMA time on those. That way I reduced the probability of a collision tremendously. From this initial estimate of range I knew right away the kind of LOS I was looking for to keep bearing rate manageable with range rate opening. This simple procedure works for the first 5 contacts or so AND the sonar traces will break really hard for contacts inside about 3-5kyds.
Once you have that aspect of the picture figured out try driving the ship down the bearing of a more distant contact for 10-15 minutes to see which way that trace breaks. Naturally, if the trace never breaks in a reasonable amount of time, then you will have to turn the ship yourself.
Once you’re comfortable with having the range on most of the contacts assign trackers. Also, once you have the closest contacts under control you may want to approach PD to do visual search.
Finally, when you’re in a high density environment with lots of surface traffic, conventional subs like the Kilo will want to hide near a surface ship in order to have some kind of shield.