Two questions about TMA.
 

Hi there I got two questions about the TMA
1. Is it possible that the TMA in Reinforce Alert adds some kind of deviation on the Sphere Sonar? Both solutions in RA and Vanilla were pretty accurate, yet the RA TMA hadn't all dots stacked up.Attachment 3214 Attachment 3213
2. If you change the course in both RA and Vanilla, the dots on the Towed Array seem to differ, which isn't the case with the Sphere Sonar, why is that so?
Attachment 3216

For number one, I can't really compare them because they're not the same data set, unfortunately. It looks like RA could be adding in some error to the LOBs but I can't tell for certain because I don't know what the contact was doing.



2. This is anomalous data that you get when your towed array changes position/orientation after you've changed course or depth, likely with speed changes too but the effect is minimal (I can't recall a speed change greatly affecting towed data). The towed array is meant to work in steady state conditions, i.e., when it has little to no relative motion like when you're cruising along at 5 knots with no speed, depth, or course changes. When you change your speed, course, or depth, the towed goes into a transient condition as it moves between steady-state conditions. During the transient condition, it does not give reliable data. This is just a fact of nature of the towed. These transients can be reduced by going faster, which has other consequences, of course. This is why I like to use the sphere or conformal (hull-bound sensors) when I can because they don't suffer from these transient conditions.

Thanks FPSchazly for your quick answer. Your videos also helped me a lot. :Kaleun_Thumbs_Up:

You're welcome x2! Glad the videos helped. For point 1, you could make a simple scenario where you track a ship and try it in both RA and stock to see what happens. :salute: