i just normaly sit there at 3 or 4 knots so theres not much chance of a pick up where some one who is doing 10 knots or more is

i do use TA just not often

Oh no, they can still find you with that tell-tale 50Hz line your plant gives off. I use that trick all the time: Such a signature with no BB noise=Russian submarine in area.

this isnt mp as we all know the AI subs are pretty dumb if it was mp then id be using a diffrent tactic

The question posted in this thread specifically relates to MP.

whoops lol didnt see that part

Reports of real-life sub operations indicate regular baffle clearance procedures.
The inference is that this refers to rear baffles.

In DW MP running mostly with TA out you have no rear (TA) baffles. You are concerned with forward baffles
but the arc from 30 deg to 330 deg is covered.

We are concerned to track often faint NB traces and are TA dependent for range.

I mantain that we should have an area around 180 deg where TA sonar performance is diminished.
Whether this amounts to a baffle or just reduced range ability is not clear.
I suspect that this is a 'sensitive' topic so I wont press home my point. ;)

From the speculation file...

Bellman, in defense of the argument against a baffled TA, all of the calculations of sound picked up by the array undergo a massive digital transformation before being displayed as signals with a bearing.

I believe that we may have computers sensitive enough to minimize any degredation.

Also, TA's, from any country, definately have a certain water-lifespan. That is, the more you run around with it streamed, the sooner you are going to have to be in port so someone can pull it apart.

EDIT: I can't even describe the avatar I have now... http://www.subsim.com/phpBB/hangover.jpg

:) I will take a lot of convincing that there is not serious reception degradation at the 180 deg. :hmm:

Avatar - Neals Texan humour :lol: ......Temporary gag (I hope ;) )

My favourites are the 'Shore Leave' and 'Night in a brothel' ones. Good fun. :rock:

His favourite trick is to withdraw it just after you post a reaction - leaving you thinking '' Wow - Am I seeing things -
did I really drink that much !! " :oops: :o :huh: :arrgh!: :damn:

:rotfl:

I still don't get it. If I have TA 300m behind the sub, why should be its 'coverage' only 180 degrees ? Ship is 300m away, it would only be strong contact, nothing else. Disturbances (wake) of the sub should not affect TA, because TA is in different depth than sub.
I think TA should hear almost while cirlce quite clear. In the fron there should always be strong own-ship contact, that's why the 'masking' is there. But the masking would not work in the turns anyway (and it does not).
Onlw when TA gets into wake, which can happen with depth changes or at high speed, TA should be affected, but all circle in similar way.
I of course don't have any knowledge of how rhis works in real life.

Dr. SidThats not what I said. The DW TA coverage is apparently an arc of
300 deg (030 - 330 deg) as shown in the documentation.

I refer to the fact that I would expect reception to degradate behind the sub at and around its 180 deg bearng.
In reality (who knows) the arc might be say 158 - 202 deg with a deteriorating starting
at such bearings and climaxing at 180 (ish)

I am 'observing' that there is a TA baffle behind real subs.

If so (?) then DW should/could model it ? :hmm:

From http://subsim.com/phpBB/viewtopic.php?t=41165

:lol: Ok OK :lol:

Rip wrote :-I am going to leave it there. ;)

There should be no baffle at all when you go at two knts, the TA sinks and own ship is no longer a problem, shouldn't it? :hmm:

Dont want to keep on harping back to whats been said, but i think that...(and this is an amatuers prospective).

1) You got your TA out? Then you have no blind spot, regardless of any minor degredation to the 180.

2) If thats the case, when do subs deploy the thing, always? or depending on the situation

3) If the subs we read about are able to get into another subs baffles then that must suggest that the sub being trailed didnt have its TA deployed.

4) As all the above is conjecture feel free to tear it to bits ;)

I don't understand why TA device should be hanging around outside the submarine main body. What if it hits rocks and get cut off?

Well that is a real risk, depending on the speed of the sub the TA droops down (DW models this well) so if your near the bottom you need to be careful.

I dont think DW models the chance of ther TA breaking from contact with the bottom, but you do get a 'wash out' effect when it hits the sea bed.