Torpedo Search Depth

Avio · 04-21-19, 07:56 PM

Have been setting USET-80 torpedo in the Kilo to search at certain depth (such as 100m) with ceiling at 5m and floor at 200m but notice the torpedo just swim at 100m after going active. Shouldn't it search up and down between 5m and 200m?

By the way, the search depth setting sometimes seem to have a problem -- at times I can only increase the value to 99m maximum. It is only when I set the floor to 200m or less that the search depth value can be increased to 100m or more. Is there an issue on that?

Any advice much appreciated.

Avio · 04-21-19, 11:50 PM

I did some tests and it seems the torpedo only starts searching up and down IF and WHEN it goes active very near the target. If it goes active too early, it would just swim at the preset search depth without attempting to move up and down.

Is this behaviour correct? I would expect the torpedo's cone of detection to be quite narrow, right? If so, it may not be able to "see" anything that is a little off from the preset depth.

As for the depth setting, it can go beyond 99m provided the floor is set to greater than 100m. Had overlooked on that.

Pisces · 04-22-19, 05:23 AM

It has been DW vanila (and SC) behaviour that torpedoes stay at their launch depth until they reach the enable range. Then they follow their depth parameters. From another thread I suspect you are asking about RA behaviour. I am not too familiar with that. I know they did change a lot to how the torpedoes changes search-paterns based on depth settings. I guess the right place to look is in the doctrine files. Last time I looked it seemed a reasonably clear language to interpret. But that was from the LWAMI mod and vanilla DW. RA might contain Russian descriptions.

p7p8 · 04-22-19, 10:32 AM

Answers of your questions are in DW manual and Weapon guide manual for RA.
This second manual is MANDATORY for RA

USET-80 is wireless torpedo - it means you cannot change searching depth after launch.

In RA some of wire-guided torpedoas has abilities for changing depth to under/above layer - all informations are in "Weapon guide" manual.

P.S. if you don't like to read manuals, you should stay with vanilla DW

Avio · 04-22-19, 09:03 PM

I read the manual and understood it all. But no, the torp stays put right at the preset depth after going active, although it does follow snake search pattern as set.

p7p8 · 04-23-19, 05:59 AM

From DW manual:

Quote:

Depth: Set the depth at which the weapon travels.
Ceiling: Set the depth above which the weapon does not travel.
Floor: Set the depth below which the weapon does not travel.

It means torpedo will ignore all targets above ceiling and below floor.

It doesn't means torpedo will continuously change depth from ceiling to floor and vice versa.

But if target detected between ceiling and floor, will go for example deeper, torpedo will follow this target.

BTW in DW torpedo travels at your sub launch depth until manual activation or reaching RTE. After this point torpedo change depth to value from pre-launch settings (depth).

Ceiling - discriminates all targets above (useful if you don't want to hit civilian or allied ships)

Floor - discriminates all targets below.

In RA ceiling can active additional modes of engaging:
1. ASW+ASuW
2. ASuW only
3 ASW only

Floor changes search pattern.

04-21-19, 07:56 PM	#1
Avio Watch Join Date: Mar 2019 Posts: 27 Downloads: 5 Uploads: 0	Torpedo Search Depth Have been setting USET-80 torpedo in the Kilo to search at certain depth (such as 100m) with ceiling at 5m and floor at 200m but notice the torpedo just swim at 100m after going active. Shouldn't it search up and down between 5m and 200m? By the way, the search depth setting sometimes seem to have a problem -- at times I can only increase the value to 99m maximum. It is only when I set the floor to 200m or less that the search depth value can be increased to 100m or more. Is there an issue on that? Any advice much appreciated.

04-22-19, 05:23 AM	#3
Pisces Silent Hunter Join Date: Dec 2004 Location: AN9771 Posts: 4,904 Downloads: 304 Uploads: 0	It has been DW vanila (and SC) behaviour that torpedoes stay at their launch depth until they reach the enable range. Then they follow their depth parameters. From another thread I suspect you are asking about RA behaviour. I am not too familiar with that. I know they did change a lot to how the torpedoes changes search-paterns based on depth settings. I guess the right place to look is in the doctrine files. Last time I looked it seemed a reasonably clear language to interpret. But that was from the LWAMI mod and vanilla DW. RA might contain Russian descriptions. __________________ My site downloads: https://ricojansen.nl/downloads

04-22-19, 10:32 AM	#4
p7p8 Seasoned Skipper Join Date: Nov 2006 Posts: 742 Downloads: 136 Uploads: 6	Answers of your questions are in DW manual and Weapon guide manual for RA. This second manual is MANDATORY for RA USET-80 is wireless torpedo - it means you cannot change searching depth after launch. In RA some of wire-guided torpedoas has abilities for changing depth to under/above layer - all informations are in "Weapon guide" manual. P.S. if you don't like to read manuals, you should stay with vanilla DW __________________

04-21-19, 11:50 PM	#2
Avio Watch Join Date: Mar 2019 Posts: 27 Downloads: 5 Uploads: 0	I did some tests and it seems the torpedo only starts searching up and down IF and WHEN it goes active very near the target. If it goes active too early, it would just swim at the preset search depth without attempting to move up and down. Is this behaviour correct? I would expect the torpedo's cone of detection to be quite narrow, right? If so, it may not be able to "see" anything that is a little off from the preset depth. As for the depth setting, it can go beyond 99m provided the floor is set to greater than 100m. Had overlooked on that.

04-22-19, 09:03 PM	#5
Avio Watch Join Date: Mar 2019 Posts: 27 Downloads: 5 Uploads: 0	I read the manual and understood it all. But no, the torp stays put right at the preset depth after going active, although it does follow snake search pattern as set.