Depth charges launched to periscope depth...

Sirkam · 01-28-08, 03:15 AM

Do you see that, when a armer trawler/destroyer launch depth charges to periscope depth, the depth charges's racks blow to pieces (good for me :rotfl: ), thats real or is it a bug?
And, thats incredible, the warplanes with defensive machine guns (firing at me), caused critical damages to my sub (even sink me most of the times...

).

robbierob2005 · 01-28-08, 05:35 AM

That signature :rotfl:

Sirkam · 01-28-08, 07:28 AM

Very cool, eh

?

Now, anyone have the same problems that i have?

Sirkam · 01-28-08, 07:49 AM

Thanks Mikhayl, but i haven't got a CTD when the armed trawler launch depth charges to periscope depth, simply, sometimes, the depth charge's racks blow by their own depth charges. This happend even in the destroyers racks.

And the defensive guns of the bombers are too strong, too dangerous for my sub...i think...

Sailor Steve · 01-28-08, 10:25 AM

Yes, the escorts blowing off their racks, and even sinking themselves, is an old and known bug that nobody's been able to fix.

As for the aircraft guns, one of the problems in the stock game is people shooting down 15 patrol bombers before finally getting sunk, when in real life one was extremely dangerous. I think Mikhayl's observation is accurate: we shouldn't be fighting aircraft anyway.

Von Manteuffel · 01-28-08, 11:11 AM

Not sure if it can be, or is coded into the game, but an armed trawler would never launch DCs to explode at periscope depth. They simply weren't fast enough to get out of the way of their own ordnance.

It's all math and a formula involving the DC's sink-rate, the launching ship's speed and the blast radius of the DC.

DEs with a speed of 20 knots covered 10.2 metres per second. Depth charges varied in their sink-rates from the 1.8 metres per second of the Mk 2, 3 & 4 to 3.5 m.p.s of the Mk 8. If we assume a generous average sink rate of 2.5 metres per second, it would take a DC 5 seconds to reach ( and explode at ) 12.5 metres. During that 5 seconds, a vessel travelling at 20 knots would travel 51 metres. Hairy and the ship would be deluged with spray from the blast, but just about safe from the blast radius of a DC ( Don't forget that water dampens blast effect.)

At a sink rate of 1.8 m.p.s. a DE traveling at 20 knots would be 67 metres clear of a DC set to explode at 12 metres. Safe enough.

Launchers were developed a) to enhance the DC pattern, and b) to throw DCs clear of slower moving ships, so that they weren't damaged by their own weapons.

We have to accept that escort commanders, including armed trawlers, knew their maths and could easily calculate a safe depth for their DCs to explode and leave their own vessels clear. A speed of 8 knots = 4 metres per second. To get 50 metres clear from the explosion point would take a vessel moving at 8 knots 12, or 13 seconds. In turn this means that - to be 50 metres clear, a vessel travelling at 8 knots would need to set DCs to explode at a depth of around 32 metres.

So, basically, if escorts do blow off their own sterns, enjoy it. It's fun, but nowhere near realistic.

Sirkam · 01-29-08, 03:18 AM

As i tell in my first post.... good for me

. So, is it a stock SH3 bug?

TarJak · 01-29-08, 05:33 AM

It is being addressed by GWX2.1 patch to be released when it is ready.

01-28-08, 03:15 AM	#1
Sirkam Frogman Join Date: Jan 2008 Location: Spain Posts: 289 Downloads: 9 Uploads: 0	Depth charges launched to periscope depth... Do you see that, when a armer trawler/destroyer launch depth charges to periscope depth, the depth charges's racks blow to pieces (good for me :rotfl: ), thats real or is it a bug? And, thats incredible, the warplanes with defensive machine guns (firing at me), caused critical damages to my sub (even sink me most of the times... ). __________________

01-28-08, 07:28 AM	#3
Sirkam Frogman Join Date: Jan 2008 Location: Spain Posts: 289 Downloads: 9 Uploads: 0	Very cool, eh ? Now, anyone have the same problems that i have? __________________

01-28-08, 07:49 AM	#4
Sirkam Frogman Join Date: Jan 2008 Location: Spain Posts: 289 Downloads: 9 Uploads: 0	Thanks Mikhayl, but i haven't got a CTD when the armed trawler launch depth charges to periscope depth, simply, sometimes, the depth charge's racks blow by their own depth charges. This happend even in the destroyers racks. And the defensive guns of the bombers are too strong, too dangerous for my sub...i think... __________________

01-28-08, 10:25 AM	#5
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	Yes, the escorts blowing off their racks, and even sinking themselves, is an old and known bug that nobody's been able to fix. As for the aircraft guns, one of the problems in the stock game is people shooting down 15 patrol bombers before finally getting sunk, when in real life one was extremely dangerous. I think Mikhayl's observation is accurate: we shouldn't be fighting aircraft anyway. __________________ “Never do anything you can't take back.” —Rocky Russo

01-28-08, 11:11 AM	#6
Von Manteuffel Commander Join Date: Feb 2007 Location: UK Posts: 473 Downloads: 411 Uploads: 0	Not sure if it can be, or is coded into the game, but an armed trawler would never launch DCs to explode at periscope depth. They simply weren't fast enough to get out of the way of their own ordnance. It's all math and a formula involving the DC's sink-rate, the launching ship's speed and the blast radius of the DC. DEs with a speed of 20 knots covered 10.2 metres per second. Depth charges varied in their sink-rates from the 1.8 metres per second of the Mk 2, 3 & 4 to 3.5 m.p.s of the Mk 8. If we assume a generous average sink rate of 2.5 metres per second, it would take a DC 5 seconds to reach ( and explode at ) 12.5 metres. During that 5 seconds, a vessel travelling at 20 knots would travel 51 metres. Hairy and the ship would be deluged with spray from the blast, but just about safe from the blast radius of a DC ( Don't forget that water dampens blast effect.) At a sink rate of 1.8 m.p.s. a DE traveling at 20 knots would be 67 metres clear of a DC set to explode at 12 metres. Safe enough. Launchers were developed a) to enhance the DC pattern, and b) to throw DCs clear of slower moving ships, so that they weren't damaged by their own weapons. We have to accept that escort commanders, including armed trawlers, knew their maths and could easily calculate a safe depth for their DCs to explode and leave their own vessels clear. A speed of 8 knots = 4 metres per second. To get 50 metres clear from the explosion point would take a vessel moving at 8 knots 12, or 13 seconds. In turn this means that - to be 50 metres clear, a vessel travelling at 8 knots would need to set DCs to explode at a depth of around 32 metres. So, basically, if escorts do blow off their own sterns, enjoy it. It's fun, but nowhere near realistic. Last edited by Von Manteuffel; 01-28-08 at 11:23 AM.

01-28-08, 05:35 AM	#2
robbierob2005 Watch Officer Join Date: Jun 2006 Location: Beneath the surface..... Posts: 334 Downloads: 83 Uploads: 0	That signature :rotfl:

01-29-08, 03:18 AM	#7
Sirkam Frogman Join Date: Jan 2008 Location: Spain Posts: 289 Downloads: 9 Uploads: 0	As i tell in my first post.... good for me . So, is it a stock SH3 bug? __________________

01-29-08, 05:33 AM	#8
TarJak Fleet Admiral Join Date: Jul 2006 Location: Sydney, Australia Posts: 17,052 Downloads: 150 Uploads: 8	It is being addressed by GWX2.1 patch to be released when it is ready.