Mechanical transients??

[speed150mph]

I'm running dw with RA mod, and I've noticed that the game sorta detects mechanical transients, when operating a sub when I open my torpedo tube doors I give away my location to anyone nearby.

My question is does it work in reverse. The computer can detect me doing it but can I detect an enemy sub doing it over the sonar. I don't ever recall hearing anything or seeing anything over the sonar that gives any hint that an enemy sub is opening tube doors.

Secondly, I understand the principle of a ships baffles being a dead zone as a sub can't hear sounds from behind unless using the towed array. Would this work in reverse too? In game and in real life, if I wanted to open my tube doors and not have him hear me, would it work if I came about placing the hull of my sub between him and the sound source, or would it still resonate.

Thanks guys

[FPSchazly]

Originally Posted by speed150mph

I'm running dw with RA mod, and I've noticed that the game sorta detects mechanical transients, when operating a sub when I open my torpedo tube doors I give away my location to anyone nearby.

My question is does it work in reverse. The computer can detect me doing it but can I detect an enemy sub doing it over the sonar. I don't ever recall hearing anything or seeing anything over the sonar that gives any hint that an enemy sub is opening tube doors.

Secondly, I understand the principle of a ships baffles being a dead zone as a sub can't hear sounds from behind unless using the towed array. Would this work in reverse too? In game and in real life, if I wanted to open my tube doors and not have him hear me, would it work if I came about placing the hull of my sub between him and the sound source, or would it still resonate.

Thanks guys

How do you know that you give your position away? I'm assuming you're getting a torpedo down your bearing lol.

If you look on the broadband when you open outer doors (I guess you could see it in the Russian azimuthal but I'm really thinking about the waterfall), you can see the acuity on your broadband drop once you open the door and keep it open, due to the increase in noise from opening the doors and then the increased flow noise of water moving across the open tube.

Whether it's the transient or the increase in flow noise that gives away your position, I do not know.


Second thing: I'm imagining it would still resonate. It's a transient and more of a sharp, crisp kind of sound than the general hum of the operation of a submarine. There's nothing about the baffles that makes it a physical property of nature that stuff can't be heard back there. It's just that we choose to not hear anything back there because, well, the sonar receptors would just be listening to your own ship at that point.

[Mike Abberton]

I believe that you can get detections of some transients, but I do not believe that there is any sort of notification that this happens.

In broadband, you can sometimes get pulses of sound from a contact, sometimes even from a contact you can't see otherwise (at least in the broadband). For examples, in LWAMI, you will get bright pulses on the broadband if a sub launches a missile (like a TLAM or a SUBROC), sometimes even from a surface ship.

I am not sure if opening tube doors would generate that sort of transient or not, or how close you would need to be to see the transient. I don't believe stock or any mod models mechanical transients from within the sub (hatches clanging, dropped wrenches, singing, etc.).

One problem with transients would be that there is no transient notification, other than a Torpedo in the Water, and I doubt the AutoCrew would react to one either. So you would basically have to be on the broadband screen constantly to pick one up in time to do anything useful with it. The AI, though, might very well respond to transients.

Mike

[Pisces]

The way to check if transients are modelled is to play the game on 2 computers doing multiplater. Whether or not the AI or autocrew can detect this is anybody's guess. Try it out I suppose when really close.