Odd boat behaviour (NYGM)

Hitman · 10-01-08, 08:55 AM

Someone else experienced this before?

It's Mai 1941 and I'm with my IXC near Cape Verde Islands. I'm approaching a convoy's screen and because of dawn I decide to dive. No damage, everybody rested and with full stamina at their combat places, no fog, no rain, sea moderate. I go to periscope depth and set ahead 2/3. The boats keep sinking.

Ahead standard. The boat keeps sinking.

Ahead full. Now slowly the boat comes again to periscope depth. But of course the escorts hear the huge noise and come tod epth charge me

What the hell is wrong? I'm well used to the NYGM no humming bird feature, but having to keep a Type IX stable at full ahead with zero damage, no flooding and moderate seas seems definitively like somethings is not working correctly here. :hmm:

kranz · 10-01-08, 09:10 AM

maybe you have crash dived and interrupted this action by setting another depth?

Hitman · 10-01-08, 09:17 AM

Nope

Was on surface and went to periscope depth with the "P" key. But the boat didn't stop sinking

What makes me furious is that this has ruined one of the best approaches on surface I had done so far

Wilcke · 10-01-08, 02:36 PM

Well thats no fun at all. You may want to post it up on the stickied NYGM thread. Or PM Stiebler directly.

nirwana · 10-01-08, 03:23 PM

Yeah i have that in NYGM quite often. It takes me a while to trim the boat with <1 kts at any depth manually with the dial. I dont use the "p" key at all cause of it.

My std procedure is setting depth to 11m then slowly setting it step by step down to 14 or 15m at 1-2 kts.

Stiebler · 10-02-08, 01:12 PM

@Hitman:

The behaviour you describe is certainly indicative of the 'crash-dive blues', even though you think not.

Sometimes resurfacing after the crash-dive blues does not solve the problem, when you dive again afterwards, so the problem may have arisen from an earlier interruption of a crash-dive. (The crash-dive blues is due to asking for a crash-dive, but then changing the diving depth before the U-boat has reached its crash-dive depth.)

I suggest strongly that *anyone* who observes the problem described by Hitman returns to the surface (or to periscope depth), then performs a crash-dive, being certain to allow the U-boat to settle to its crash-dive depth (usually 80 metres, but I think it is 20m for the Type II boats). Allow the boat plenty of time to settle at its crash-dive depth. Then take the boat down slowly.

I also recommend that players always try to dive without a crash-dive, unless it is a real emergency. Run up to flank speed and hit key 'D'. This is almiost as fast as a crash-dive and avoids the problem.

The crash-dive blues are a problem with the original SH3, but are much more noticeable with NYGM owing to its damage/diving model. When this problem occurs, you should see in camera view that the U-boat is stern-down underwater.

Stiebler.

Hitman · 10-02-08, 02:42 PM

Hummmm I'm pretty sure I did not crash dive, but anyway I will give it a try :hmm:

Thanks for the input

10-01-08, 08:55 AM	#1
Hitman Pacific Aces Dev Team Join Date: Sep 2002 Location: Spain Posts: 6,109 Downloads: 109 Uploads: 2	Odd boat behaviour (NYGM) Someone else experienced this before? It's Mai 1941 and I'm with my IXC near Cape Verde Islands. I'm approaching a convoy's screen and because of dawn I decide to dive. No damage, everybody rested and with full stamina at their combat places, no fog, no rain, sea moderate. I go to periscope depth and set ahead 2/3. The boats keep sinking. Ahead standard. The boat keeps sinking. Ahead full. Now slowly the boat comes again to periscope depth. But of course the escorts hear the huge noise and come tod epth charge me What the hell is wrong? I'm well used to the NYGM no humming bird feature, but having to keep a Type IX stable at full ahead with zero damage, no flooding and moderate seas seems definitively like somethings is not working correctly here. :hmm: __________________ One day I will return to sea ...

10-01-08, 09:17 AM	#3
Hitman Pacific Aces Dev Team Join Date: Sep 2002 Location: Spain Posts: 6,109 Downloads: 109 Uploads: 2	Nope Was on surface and went to periscope depth with the "P" key. But the boat didn't stop sinking What makes me furious is that this has ruined one of the best approaches on surface I had done so far __________________ One day I will return to sea ...

10-01-08, 02:36 PM	#4
Wilcke The Old Man Join Date: Jan 2007 Posts: 1,441 Downloads: 234 Uploads: 0	Well thats no fun at all. You may want to post it up on the stickied NYGM thread. Or PM Stiebler directly. __________________ Wilcke **For the best in Fleet Boats go to: Submarine Sim Central. http://forum.kickinbak.com/index.php Check out: A Brief Introduction to the Pacific Submarine War by Ducimus http://www.subsim.com/radioroom/showthread.php?t=128185 Operation Monsun plus OMEGU, the #1 ATO Solution for SH4! Signature Art by Gunfighter**

10-02-08, 01:12 PM	#6
Stiebler Fuel Supplier Join Date: Oct 2005 Location: London, UK Posts: 1,237 Downloads: 29 Uploads: 4	@Hitman: The behaviour you describe is certainly indicative of the 'crash-dive blues', even though you think not. Sometimes resurfacing after the crash-dive blues does not solve the problem, when you dive again afterwards, so the problem may have arisen from an earlier interruption of a crash-dive. (The crash-dive blues is due to asking for a crash-dive, but then changing the diving depth before the U-boat has reached its crash-dive depth.) I suggest strongly that anyone who observes the problem described by Hitman returns to the surface (or to periscope depth), then performs a crash-dive, being certain to allow the U-boat to settle to its crash-dive depth (usually 80 metres, but I think it is 20m for the Type II boats). Allow the boat plenty of time to settle at its crash-dive depth. Then take the boat down slowly. I also recommend that players always try to dive without a crash-dive, unless it is a real emergency. Run up to flank speed and hit key 'D'. This is almiost as fast as a crash-dive and avoids the problem. The crash-dive blues are a problem with the original SH3, but are much more noticeable with NYGM owing to its damage/diving model. When this problem occurs, you should see in camera view that the U-boat is stern-down underwater. Stiebler. __________________ NYGM Tonnage War Mod - More than a mod: it's an experience!

10-02-08, 02:42 PM	#7
Hitman Pacific Aces Dev Team Join Date: Sep 2002 Location: Spain Posts: 6,109 Downloads: 109 Uploads: 2	Hummmm I'm pretty sure I did not crash dive, but anyway I will give it a try :hmm: Thanks for the input __________________ One day I will return to sea ...

10-01-08, 09:10 AM	#2
kranz The Old Man Join Date: Aug 2007 Location: Poland Posts: 1,430 Downloads: 5 Uploads: 0	maybe you have crash dived and interrupted this action by setting another depth?

10-01-08, 03:23 PM	#5
nirwana Sonar Guy Join Date: Jun 2008 Posts: 380 Downloads: 17 Uploads: 0	Yeah i have that in NYGM quite often. It takes me a while to trim the boat with <1 kts at any depth manually with the dial. I dont use the "p" key at all cause of it. My std procedure is setting depth to 11m then slowly setting it step by step down to 14 or 15m at 1-2 kts.