Quote:
Originally Posted by Shkval
Good one for an absolute beginner... but... you didn't show the most important stuff... the merging of bow and stern sensors/trackers data in waterfall (Master 01, Master 02 etc) and their usage in TMA. We know that crossing of bearing lines in TMA gives much more accurate picture about contact's heading, speed, distance etc.
1. First two bearings crossing gives: Exact Bearing, Approximate Distance, Unknown Speed, Unknown Course;
2. Second two bearings crossing gives: Exact Bearing, Exact Distance, Approximate Speed, Approximate Course;
3. Third two bearings crossing gives: Exact Bearing, Exact Distance, Exact Course, Very good idea of contact's speed.
It turns out that minimum time for a decent TMA solution is at least 6 minutes, the more time you have to observe contact, the better solution is! That's why the distance, i.e. first bearings crossings, is the most important part of the solution, it gives you the idea how much time you have! That is why the quietness of a sub is it's the most important feature... it comes down to "who hears who first"...
"Dangerous Waters" in difference of it's predecessor "Sub command" has one BIG flaw, the sensors (bow and towed arrays) are limited to exactly 10 NM... maybe 11 NM in clear weather, and their sensitivity is about the same... In "Sub Command" if you cannot hear a contact with bow sensors, but you can hear it with towed array you are pretty safe, and have enough time for tactical maneuvers... but that's another story...
|
That's for another tutorial
My goal here is baby steps. There's a lot to learn and I don't want to swamp people who have no idea what I'm doing (yet). But thank you for the input!
Also, the trackers for that need to update at the same time to get a reliable intersect in the TMA. More often than not, the intersect is not completely correct when you look at it on the TMA. On the other hand, the bearings to those contacts will update continuously on the Nav Map, as long as they have trackers, and that intersect does work in my experience.