Torps - Premature explosions?

cpt_idaho · 07-17-07, 04:42 AM

Hi,

Yesterday I lined up to shoot at a convoy at a distance of around 2500 yards; after all the needed calculations I fired 4 torps at one of the merchants. However, after 5-10 seconds they blew up, one by one - as if they hit some invisible barrier.

I reloaded the game, thinking that maybe there was too narrow a gap between the torps, so I gave each 5 seconds before I fired another.. with the same effect. They just exploded after 100 meters.

Is it a bug or, lets say, first torp exploded prematurely and caused another explosions?

tater · 07-17-07, 08:31 AM

mk 14s prematured a lot in RL. I gather the weather was bad during your attack? Rough seas make them do this more than calmer seas.

switch.dota · 07-17-07, 08:42 AM

Question: does the running depth of the torpedo have any impact on the chance to cause premature explosions?

cpt_idaho · 07-17-07, 09:33 AM

Quote:

Originally Posted by tater

mk 14s prematured a lot in RL. I gather the weather was bad during your attack? Rough seas make them do this more than calmer seas.

You are right, the weather wasn't good.. but all 4 of the torpedoes exploding in a similar spot? Is it possible that it was some kind of a chain reaction after the first explosion?

elanaiba · 07-17-07, 09:41 AM

If the weather is bad, there are big chances they will premature right at the arming distance.

cpt_idaho · 07-17-07, 09:44 AM

elanaiba - yeah, seems that that is what has happened.. then switch.dota's question becomes even more important: does the set running depth changes anything?

nomad_delta · 07-17-07, 10:02 AM

Quote:

Originally Posted by switch.dota

Question: does the running depth of the torpedo have any impact on the chance to cause premature explosions?

I went ahead & added your question as #13 in my Q&A thread:
http://www.subsim.com/radioroom/show...858#post592858

I'd already talked about premature detonations a bit in the answers to questions #2 and #9, and as a side-effect of my testing so far I'm 90% certain that weather is the only thing that has an effect on premature detonation chances in the game. Weather does have a huge effect though, as well as distance-to-target, in a sense. Also "wave-state" (weather) is the only factor mentioned in the "torpedoes_us.sim" for premature detonation chances.

I'll try to do some more specific testing to confirm that torpedo running depth doesn't affect prematures, and I'll post my findings there once I'm done.

nomad_delta

elanaiba · 07-17-07, 10:02 AM

Yeah, the deeper they go, the lower the chance for a premature.

nomad_delta · 07-17-07, 10:07 AM

Quote:

Originally Posted by elanaiba

Yeah, the deeper they go, the lower the chance for a premature.

I stand corrected, then. I think I'll still run some tests just to be sure. I should join the Ubi QA department or something...

nomad_delta

elanaiba · 07-17-07, 10:11 AM

No, actually I have to stand corrected myself, checked the code and we didn't get around to have depth influence the prematures rate

Bad memory

nomad_delta · 07-17-07, 10:59 AM

Quote:

Originally Posted by elanaiba

No, actually I have to stand corrected myself, checked the code and we didn't get around to have depth influence the prematures rate

Bad memory

No worries, mate. I'm honestly amazed you guys got as many things working as you did during the short period of time you had to work with. There are a million things SH4 does exactly right, but we don't tend to think about those since they just work and we're so immersed in the game.

nomad_delta

SteamWake · 07-17-07, 11:09 AM

Quote:

Originally Posted by nomad_delta

Quote:

Originally Posted by elanaiba

Yeah, the deeper they go, the lower the chance for a premature.

I stand corrected, then. I think I'll still run some tests just to be sure. I should join the Ubi QA department or something...

nomad_delta

They have one ?

tycho102 · 07-17-07, 12:45 PM

Quote:

Originally Posted by cpt_idaho

Hi,
Yesterday I lined up to shoot at a convoy at a distance of around 2500 yards

Keep it under 1000 meters and you'll get *much* better results.

On top of that, if you were in the middle of the convoy, loosing both stern and bow tubes, you're going to get better tonnage per patrol. In the middle of the convoy, you're never more than 1km from the nearest ship -- usually arming distance is the problem because boats are usually closing on you when you start firing. And you're safer in the middle of the convoy because the escorts are usually are the perimeter, giving you time to get some depth before the convoy moves much.

ae4rv · 07-17-07, 01:04 PM

In real life it was the magnetic exploder that caused prematures, not the sea state. Torpedoes are not generally suseptable to unwanted explosions due to rough handling...

elanaiba · 07-17-07, 01:13 PM

Magnetic detonators may be triggered by movement caused by rough seas.

07-17-07, 09:41 AM	#5
elanaiba Ace of the Deep Join Date: Mar 2005 Location: Bucharest, Romania Posts: 1,058 Downloads: 3 Uploads: 3	If the weather is bad, there are big chances they will premature right at the arming distance. __________________ With strength I burn...

07-17-07, 09:44 AM	#6
cpt_idaho Swabbie Join Date: Jul 2007 Posts: 8 Downloads: 0 Uploads: 0	elanaiba - yeah, seems that that is what has happened.. then switch.dota's question becomes even more important: does the set running depth changes anything? Last edited by cpt_idaho; 07-17-07 at 10:23 AM.

07-17-07, 10:02 AM	#8
elanaiba Ace of the Deep Join Date: Mar 2005 Location: Bucharest, Romania Posts: 1,058 Downloads: 3 Uploads: 3	Yeah, the deeper they go, the lower the chance for a premature. __________________ With strength I burn...

07-17-07, 10:11 AM	#10
elanaiba Ace of the Deep Join Date: Mar 2005 Location: Bucharest, Romania Posts: 1,058 Downloads: 3 Uploads: 3	No, actually I have to stand corrected myself, checked the code and we didn't get around to have depth influence the prematures rate Bad memory __________________ With strength I burn...

07-17-07, 01:13 PM	#15
elanaiba Ace of the Deep Join Date: Mar 2005 Location: Bucharest, Romania Posts: 1,058 Downloads: 3 Uploads: 3	Magnetic detonators may be triggered by movement caused by rough seas. __________________ With strength I burn...

07-17-07, 04:42 AM	#1
cpt_idaho Swabbie Join Date: Jul 2007 Posts: 8 Downloads: 0 Uploads: 0	Torps - Premature explosions? Hi, Yesterday I lined up to shoot at a convoy at a distance of around 2500 yards; after all the needed calculations I fired 4 torps at one of the merchants. However, after 5-10 seconds they blew up, one by one - as if they hit some invisible barrier. I reloaded the game, thinking that maybe there was too narrow a gap between the torps, so I gave each 5 seconds before I fired another.. with the same effect. They just exploded after 100 meters. Is it a bug or, lets say, first torp exploded prematurely and caused another explosions?

07-17-07, 08:31 AM	#2
tater Navy Seal Join Date: Mar 2007 Location: New Mexico, USA Posts: 9,023 Downloads: 8 Uploads: 2	mk 14s prematured a lot in RL. I gather the weather was bad during your attack? Rough seas make them do this more than calmer seas.

07-17-07, 08:42 AM	#3
switch.dota Captain Join Date: May 2007 Location: Romania Posts: 492 Downloads: 0 Uploads: 0	Question: does the running depth of the torpedo have any impact on the chance to cause premature explosions?

07-17-07, 01:04 PM	#14
ae4rv Watch Join Date: Jun 2005 Location: USA Posts: 17 Downloads: 31 Uploads: 0	In real life it was the magnetic exploder that caused prematures, not the sea state. Torpedoes are not generally suseptable to unwanted explosions due to rough handling...