Why does the crash dive go to ~70m?

Shrike37 · 06-16-09, 07:09 PM

When using crash dive, you get under the surface faster than a regular dive. However, it makes you go to 70m and you can't edit the depth until you get to the 70m.Obviously , this is a problem in shallow water. Why didn't they have the crash dive depth be something more like 20m and then you can just continue to take the sub down manually as deep as you need to go after that?

That way you can crash dive in all water depths when those pesky aircraft or destroyers show up.

mookiemookie · 06-16-09, 07:34 PM

My guess is that it has to do with the fact that you're getting under at flank speed and that was probably the depth that you would have reached before you could stop the downward momentum of the sub.

Torplexed · 06-16-09, 08:03 PM

The best solution is to just hit the "A" key (maintain depth) at whatever point into your crash dive you wish. The sub will immediately attempt to level off.

FIREWALL · 06-16-09, 09:07 PM

A safety feature so the realistic players at 2048 tc wouldn't zip past crush depth.

GoldenRivet · 06-16-09, 09:17 PM

Quote:

Originally Posted by FIREWALL

A safety feature so the realistic players at 2048 tc wouldn't zip past crush depth.

there is more truth to this than you might think.

IIRC the stock game wouldnt stop the dive. but i dont remember

FIREWALL · 06-16-09, 09:39 PM

Quote:

Originally Posted by GoldenRivet

there is more truth to this than you might think.

IIRC the stock game wouldnt stop the dive. but i dont remember

You are so right.

Leandros · 06-17-09, 02:08 AM

Quote:

Originally Posted by Shrike37

When using crash dive, you get under the surface faster than a regular dive. However, it makes you go to 70m and you can't edit the depth until you get to the 70m.Obviously , this is a problem in shallow water. Why didn't they have the crash dive depth be something more like 20m and then you can just continue to take the sub down manually as deep as you need to go after that?

That way you can crash dive in all water depths when those pesky aircraft or destroyers show up.

What i usually do is to initiate CD, then, when the dive has started (even before the boot is completely under) I select the wanted depth - f. ex. PD. I usually end up reversing the dive at approx. 25 meters.

Another way, when in shallow waters, is to select AK (flank) at the same time selecting PD (P). You do not loose much time at that.

Stiebler · 06-17-09, 05:12 AM

Owing to a small bug in the original game, any attempt to alter the pre-set crash-dive depth, before the crash-dive has completed, results in the U-boat not levelling out properly.

This can affect depth-keeping properties - you may find you have to travel excessively fast to hold your depth steady.

This problem is particularly severe with the NYGM super-mod, where the U-boat is trimmed down anyway (that is, it has a tendency to keep sinking at very slow speed), but it also affects the stock game. Not sure about GWX, since the U-boat is trimmed up (has a tendency to rise) at very slow underwater speeds.

The golden rule: Do NOT change the depth of a crash-dive until AFTER the crash-dive has completed. As an alternative, just diving at flank speed and also pressing the 'D' key is nearly always fast enough, and does not cause the crash-dive depth-keeping problem.

If you accidently interrupt a crash-dive by changing depth, you can correct all the problems by returning to a depth above the crash-dive depth, then crash-dive again, allowing the U-boat to level out properly.

Stiebler.

nikbear · 06-17-09, 06:56 AM

Or you could use Venatore's mod for pre-setting your Crashdive depth,much easier and very useful around the shallow coast of GB

http://www.bts-mods.com/?page=sh3user=venatore Its JSGME enabled and gives you a number of depth's to choose from,brilliant little mod

Jimbuna · 06-17-09, 07:11 AM

Quote:

Originally Posted by nikbear

Or you could use Venatore's mod for pre-setting your Crashdive depth,much easier and very useful around the shallow coast of GB

http://www.bts-mods.com/?page=sh3user=venatore Its JSGME enabled and gives you a number of depth's to choose from,brilliant little mod

Quite agree....a great mod that covers 20, 30, 40, 50 and 60 metre depths.

If anyone should feel the need for a different depth, say....35 metres (and I can't imagine why the above options shouldn't give choice enough) simply go into data\submarine\NSS_'uboat type' open the CFG file and change the MaxDepth figure.

Edit: Humble apologies I meant to type CrashDepth

Sailor Steve · 06-17-09, 02:58 PM

Answer to the original question: When you conduct a normal dive the tanks are flooded and the sub is taken down. American practice was to dive to 100 feet and then come back up to periscope depth once proper trim was assured. I'm betting German practice was the same, so "Periscope Depth" is not realistic from the surface, nor is "Decks Awash".

In an emergency 'crash' dive, everything is flooded, the boat is taken to flank speed and the planes are put on full down. Several hundred tons of steel is hard to stop once it gets going downward, so 70 meters is, as I understand it, the depth they really did pull out of.

If you want to go to 20 meters, click "20" on the dial and order flank speed. You should get there faster. If not, blame the game.

Shrike37 · 06-17-09, 07:03 PM

Quote:

Originally Posted by Sailor Steve

Answer to the original question: When you conduct a normal dive the tanks are flooded and the sub is taken down. American practice was to dive to 100 feet and then come back up to periscope depth once proper trim was assured. I'm betting German practice was the same, so "Periscope Depth" is not realistic from the surface, nor is "Decks Awash".

In an emergency 'crash' dive, everything is flooded, the boat is taken to flank speed and the planes are put on full down. Several hundred tons of steel is hard to stop once it gets going downward, so 70 meters is, as I understand it, the depth they really did pull out of.

If you want to go to 20 meters, click "20" on the dial and order flank speed. You should get there faster. If not, blame the game.

I tried just going to 20m on flank vs a crash dive a couple days ago. The crash dive reached 20m about 20 or so seconds faster than going to flank and diving to 20m. While driving a VIIB.

Task Force · 06-17-09, 07:11 PM

you can press c then acouple of seconds later p.

meduza · 06-17-09, 07:15 PM

Quote:

Originally Posted by Shrike37

I tried just going to 20m on flank vs a crash dive a couple days ago. The crash dive reached 20m about 20 or so seconds faster than going to flank and diving to 20m. While driving a VIIB.

That's understandable, because at crash dive you pass 20m with maximal speed and planes set for diving.
But if you order to dive to 20m, when you get near that depth, the sub will considerably slow its descend. That's why it takes longer.

Try setting some other depth, then see how long will it take to reach 20m. I tested it for 15m, with VIIC. Crash dive took 36s, normal dive at flank speed 39s. Before diving, I was going at 10kt in all tests.

Sailor Steve · 06-18-09, 11:16 AM

Quote:

Originally Posted by Shrike37

I tried just going to 20m on flank vs a crash dive a couple days ago. The crash dive reached 20m about 20 or so seconds faster than going to flank and diving to 20m. While driving a VIIB.

But that was my point. It's realistic that way.

06-16-09, 07:09 PM	#1
Shrike37 Watch Join Date: Jun 2009 Posts: 28 Downloads: 4 Uploads: 0	Why does the crash dive go to ~70m? When using crash dive, you get under the surface faster than a regular dive. However, it makes you go to 70m and you can't edit the depth until you get to the 70m.Obviously , this is a problem in shallow water. Why didn't they have the crash dive depth be something more like 20m and then you can just continue to take the sub down manually as deep as you need to go after that? That way you can crash dive in all water depths when those pesky aircraft or destroyers show up.

06-16-09, 07:34 PM	#2
mookiemookie Navy Seal Join Date: Nov 2005 Location: Houston, TX Posts: 9,404 Downloads: 105 Uploads: 1	My guess is that it has to do with the fact that you're getting under at flank speed and that was probably the depth that you would have reached before you could stop the downward momentum of the sub. __________________ They don’t think it be like it is, but it do. Want more U-boat Kaleun portraits for your SH3 Commander Profiles? Download the SH3 Commander Portrait Pack here.

06-16-09, 09:07 PM	#4
FIREWALL Eternal Patrol Join Date: Mar 2006 Location: CATALINA IS. SO . CAL USA Posts: 10,108 Downloads: 511 Uploads: 0	A safety feature so the realistic players at 2048 tc wouldn't zip past crush depth. __________________ RIP FIREWALL I Play GWX. Silent Hunter Who ???

06-17-09, 05:12 AM	#8
Stiebler Fuel Supplier Join Date: Oct 2005 Location: London, UK Posts: 1,237 Downloads: 29 Uploads: 4	Owing to a small bug in the original game, any attempt to alter the pre-set crash-dive depth, before the crash-dive has completed, results in the U-boat not levelling out properly. This can affect depth-keeping properties - you may find you have to travel excessively fast to hold your depth steady. This problem is particularly severe with the NYGM super-mod, where the U-boat is trimmed down anyway (that is, it has a tendency to keep sinking at very slow speed), but it also affects the stock game. Not sure about GWX, since the U-boat is trimmed up (has a tendency to rise) at very slow underwater speeds. The golden rule: Do NOT change the depth of a crash-dive until AFTER the crash-dive has completed. As an alternative, just diving at flank speed and also pressing the 'D' key is nearly always fast enough, and does not cause the crash-dive depth-keeping problem. If you accidently interrupt a crash-dive by changing depth, you can correct all the problems by returning to a depth above the crash-dive depth, then crash-dive again, allowing the U-boat to level out properly. Stiebler. __________________ NYGM Tonnage War Mod - More than a mod: it's an experience!

06-17-09, 06:56 AM	#9
nikbear Sea Lord Join Date: Feb 2007 Location: Northampton,UK Posts: 1,859 Downloads: 86 Uploads: 0	Or you could use Venatore's mod for pre-setting your Crashdive depth,much easier and very useful around the shallow coast of GB http://www.bts-mods.com/?page=sh3user=venatore Its JSGME enabled and gives you a number of depth's to choose from,brilliant little mod __________________ 'It is not surely known when the grey wolf shall come upon the seat of the gods' Ericksmal.

06-16-09, 08:03 PM	#3
Torplexed Let's Sink Sumptin' ! Join Date: Dec 2001 Location: Seattle, WA Posts: 5,823 Downloads: 43 Uploads: 0	The best solution is to just hit the "A" key (maintain depth) at whatever point into your crash dive you wish. The sub will immediately attempt to level off.

06-17-09, 02:58 PM	#11
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	Answer to the original question: When you conduct a normal dive the tanks are flooded and the sub is taken down. American practice was to dive to 100 feet and then come back up to periscope depth once proper trim was assured. I'm betting German practice was the same, so "Periscope Depth" is not realistic from the surface, nor is "Decks Awash". In an emergency 'crash' dive, everything is flooded, the boat is taken to flank speed and the planes are put on full down. Several hundred tons of steel is hard to stop once it gets going downward, so 70 meters is, as I understand it, the depth they really did pull out of. If you want to go to 20 meters, click "20" on the dial and order flank speed. You should get there faster. If not, blame the game. __________________ “Never do anything you can't take back.” —Rocky Russo

06-17-09, 07:11 PM	#13
Task Force Rear Admiral Join Date: Jul 2008 Location: SPACE!!!! Posts: 10,142 Downloads: 85 Uploads: 0	you can press c then acouple of seconds later p. __________________ Task Force industries "Taking control of the world, one mind at a time"