Maximum depth for depth charges

silentwayIII · 09-27-06, 10:18 AM

I was wondering what was the maximum depth different types of depth charges exploded at (British, US). Also, if there were changes, what years did they go into effect?

Using NYGM ver 2.2. I'm in 1942 right now, and was caught by three destroyers after sinking a convoy escort in the "Malta" single mission. My VIIC was at 180 meters creeping along at 2kts in silent running when I got nailed.

Thanks

SteamWake · 09-27-06, 10:22 AM

I dont have a quantitative answer for you.

I do know that DC's dont care about crush depth

Pants · 09-27-06, 10:35 AM

are you talking about "REAL" dc's or in the mod?

Captain Nemo · 09-27-06, 10:35 AM

See http://www.de220.com/Armament/Depth%...pthCharges.htm

It would seem that the later versions of depth charges could detonate at a depth of around 1,000 feet.

Nemo

Pants · 09-27-06, 10:42 AM

Nice one nemo

For the British DC's

The Mark VII DC " The standard DC of the first three years of World War II "
Sink Rate / Terminal Velocity 9.9 fps (3.0 mps)
Settings 300 feet (91 m) max, later units 500 feet (182 m)

Mark VII Heavy " This had a 150 lbs. (68 kg) cast-iron weight attached to increase the sinking rate. The British claimed this DC would split a 0.875 inch (22 mm) hull at 20 feet (6.1 m) and force a submarine to surface at about twice that distance. A minol charge introduced in 1942 increased these distances to 26 feet (7.9 m) and 52 feet (15.8 m), respectively "

Sink Rate / Terminal Velocity 16.8 fps (5.1 mps)
Settings 300 feet (91 m) max

The deepest DC setting was the US Mark 16 " Postwar DC for projector use, only. Mod 0 was hydrostatic, Mod 1 was acoustic. Last DC developed for the USN
Date In Service 1943
Sink Rate / Terminal Velocity 31 fps (9.4 mps)
Settings 2,500 feet (762 m)
Hope that helps

Safe-Keeper · 09-27-06, 10:55 AM

Quote:

I do know that DC's dont care about crush depth

If they can't implode, then why aren't submarines made of the same stuff

?

Reminds me of the "why aren't planes made of the same materials as black boxes"-joke. Meh.

SteamWake · 09-27-06, 12:55 PM

Quote:

Originally Posted by Safe-Keeper

Quote:

I do know that DC's dont care about crush depth

If they can't implode, then why aren't submarines made of the same stuff

?

Reminds me of the "why aren't planes made of the same materials as black boxes"-joke. Meh.

Well I suppose they can implode if they dident explode first its just that they arent really concearned with it :shrug:

Of course DC's dont have any feelings at all... silly me

silentwayIII · 09-27-06, 04:57 PM

Thanks for the prompt information I requested "Pants" and the article "Capt Nemo.

SilentwayIII

HunterICX · 09-27-06, 05:30 PM

well....there goes If i,m deep enough they will be unable to blow me to bits.....

Steeltrap · 09-27-06, 08:43 PM

It was after capturing U-570 and analysing her extensively that the Brits realised (much to their horror!) that U-Boats were capable of diving far deeper than believed.....they immediately made their DCs capable of deeper depths.

SteamWake · 09-28-06, 01:11 PM

Technically they were already capable of deeper depths. They were just guessing wrong and adjusted there settings accordingly.

Even then it was still a guessing game a bit like rolling dice you might get lucky now and then.

When the hedgehog and "squids" using contact fusing that all changed. The kill ratio increased by nearly 60%.

09-27-06, 10:18 AM	#1
silentwayIII Electrician's Mate Join Date: Apr 2006 Posts: 135 Downloads: 166 Uploads: 0	Maximum depth for depth charges I was wondering what was the maximum depth different types of depth charges exploded at (British, US). Also, if there were changes, what years did they go into effect? Using NYGM ver 2.2. I'm in 1942 right now, and was caught by three destroyers after sinking a convoy escort in the "Malta" single mission. My VIIC was at 180 meters creeping along at 2kts in silent running when I got nailed. Thanks

09-27-06, 10:35 AM	#3
Pants Grey Wolf Join Date: Apr 2005 Location: Somewhere in the Atlantic Posts: 849 Downloads: 25 Uploads: 0	are you talking about "REAL" dc's or in the mod? __________________ Ex GWX Dev Team member and proud GWX user

09-27-06, 10:42 AM	#5
Pants Grey Wolf Join Date: Apr 2005 Location: Somewhere in the Atlantic Posts: 849 Downloads: 25 Uploads: 0	Nice one nemo For the British DC's The Mark VII DC " The standard DC of the first three years of World War II " Sink Rate / Terminal Velocity 9.9 fps (3.0 mps) Settings 300 feet (91 m) max, later units 500 feet (182 m) Mark VII Heavy " This had a 150 lbs. (68 kg) cast-iron weight attached to increase the sinking rate. The British claimed this DC would split a 0.875 inch (22 mm) hull at 20 feet (6.1 m) and force a submarine to surface at about twice that distance. A minol charge introduced in 1942 increased these distances to 26 feet (7.9 m) and 52 feet (15.8 m), respectively " Sink Rate / Terminal Velocity 16.8 fps (5.1 mps) Settings 300 feet (91 m) max The deepest DC setting was the US Mark 16 " Postwar DC for projector use, only. Mod 0 was hydrostatic, Mod 1 was acoustic. Last DC developed for the USN Date In Service 1943 Sink Rate / Terminal Velocity 31 fps (9.4 mps) Settings 2,500 feet (762 m) Hope that helps __________________ Ex GWX Dev Team member and proud GWX user Last edited by Pants; 09-27-06 at 10:48 AM.

09-27-06, 04:57 PM	#8
silentwayIII Electrician's Mate Join Date: Apr 2006 Posts: 135 Downloads: 166 Uploads: 0	DC Depth Thanks for the prompt information I requested "Pants" and the article "Capt Nemo. SilentwayIII

09-27-06, 05:30 PM	#9
HunterICX Rear Admiral Join Date: May 2006 Location: Malaga, España Posts: 10,750 Downloads: 8 Uploads: 0	well....there goes If i,m deep enough they will be unable to blow me to bits..... __________________

09-27-06, 10:22 AM	#2
SteamWake Rear Admiral Join Date: Mar 2005 Posts: 13,224 Downloads: 5 Uploads: 0	I dont have a quantitative answer for you. I do know that DC's dont care about crush depth

09-27-06, 10:35 AM	#4
Captain Nemo Ace of the Deep Join Date: Jan 2002 Location: London, England Posts: 1,144 Downloads: 54 Uploads: 0	See http://www.de220.com/Armament/Depth%...pthCharges.htm It would seem that the later versions of depth charges could detonate at a depth of around 1,000 feet. Nemo

09-27-06, 08:43 PM	#10
Steeltrap Grey Wolf Join Date: Mar 2001 Location: Sydney, Australia Posts: 818 Downloads: 3 Uploads: 0	It was after capturing U-570 and analysing her extensively that the Brits realised (much to their horror!) that U-Boats were capable of diving far deeper than believed.....they immediately made their DCs capable of deeper depths.

09-28-06, 01:11 PM	#11
SteamWake Rear Admiral Join Date: Mar 2005 Posts: 13,224 Downloads: 5 Uploads: 0	Technically they were already capable of deeper depths. They were just guessing wrong and adjusted there settings accordingly. Even then it was still a guessing game a bit like rolling dice you might get lucky now and then. When the hedgehog and "squids" using contact fusing that all changed. The kill ratio increased by nearly 60%.

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