instant death now you can see what happens

[WernerSobe]

Do you remember how everyone was trying to find a reason for instant death of the sub for no reason when trying to dive?

Now you can see how it happens. Try to set depth to maximum, go to damage controll screen and watch the hull % number. As soon you reach a certain depth the number instantly changes from 0% to 100% and you die. There is no gradual hull damage like in sh3. When you get below certain crush depth your hull is instantly destroyed you have no chance to see it coming.

This is not a big problem when you know your crush depth. But it changes when you take some damage to the hull. So the reason for the sudden loss of the sub is that if you have taken damage and your crush depth is less then before, there will be no indication that youre aproaching it. No cracking, no bursting pipes. These effects start when you reach the crush depth but thats of course to late.

I assume there is a bug.

[DeepIron]

Yow! Great find WS!

There really should be a more gradual increase in the hull integrity numbers factoring in the amount of hull damaged sustained...

Historically, a number of US subs survived diving below crush depth by dint of emergancy blowing of the ballast tanks and God's Grace...

Is this modable or hard-coded?

I would have though that in RL there woulod have been some signs of iminent danger from seals and valves failing before the main hull failed.....

[AVGWarhawk]

Funny, last night I had taken damage. I decided to check out the damage % screen. It showed 15%. I though, ok, cool I keep sailing. Later on, I was kept down by some DD. I went to the the red line on the depth meter. I forget the depth. After about 5 minutes at the deepest the boat was able to go, per the red line, I start hearing the usual, this is damaged that is damaged blah blah. I briefly see water start leaking and then the instant death screen.

I'm guessing that if the hull has some damage....best to watch how deep you go. Keep an eye on that meter gauge. If she is climbing...you be too deep

[AVGWarhawk]

Originally Posted by simonb1612

I would have though that in RL there woulod have been some signs of iminent danger from seals and valves failing before the main hull failed.....

Normally, yes but in the game it is like a domino effect. Everything just starts dropping. In about 2 seconds your dead.

[Ducimus]

Yeah i noticed that the other day. The crash speed variable in the zon file slows down the time it takes to crush your sub, just as it always has, but there is no slow bleed of hps from the hull. It's as if the game is making an abitary decision, "Go below crush depth for X amount of time, you die".


edit:

Your crush depth btw, is effected by your hull integerty. The more damage you have, the shallower your crush depth becomes.

[AVGWarhawk]

Your crush depth btw, is effected by your hull integerty. The more damage you have, the shallower your crush depth becomes.

That is logical. Then logic would dictate that you should be able to watch the hull % gauge slowly go up but apparently it does not.

[tater]

Wow, this is very different from what I understood. I thought that at a certain depth, the hull started taking HP damage.

tater

[AVGWarhawk]

It does not seem so Tater. Once the damage starts it takes off like a rocket and there is no saving the crew Then again, perhaps we watch to much Hollywood. Maybe the chain-reaction is that fast at great depths. Those who know usually do not make it back.

[tater]

Makes sense for undamaged boats since the depth would be great. It's more odd for shallow depths due to damage. Seems like you'd be more likely then to see it happen slowly.

Course subs went down pretty quickly from having the induction open, and that would have been the second they were not on the surface.

[DeepIron]

Maybe the chain-reaction is that fast at great depths.

There were some mathmatical models run on the demise of the Scorpion (post WWII nuke sub that is) that concluded her bow section telescoped into the main central section within seconds.

However, if memory serves, the telescope event happened at a much deeper depth than her crush depth...

I can't see a WWII sub, especially a Gato or Balao class, imploding within seconds at the rated crush depth. Remember, the crush depth was where the sub would first start to show signs of structural stress, not complete failure...

[mrbeast]

Originally Posted by AVGWarhawk

It does not seem so Tater. Once the damage starts it takes off like a rocket and there is no saving the crew Then again, perhaps we watch to much Hollywood. Maybe the chain-reaction is that fast at great depths. Those who know usually do not make it back.

I always understood that when a pressure hull fails at great depth it does so catastrophically. I saw a docu about the USS Thresher once (for those who are not familiar, the Thresher was a US SSN in the 60's that was lost due to pressure hull failure at great depth) and it suggested that the hull imploded almost instantaniously under the pressure.

Infact it also said that the crew was actually incinerated before they were crushed because the compression of the Oxygen in the boat, happened so quickly, it would cause it to spontainiously combust.

I don't know if this would apply to a WWII vintage sub, could it stand the depths that an SSN could before it was crushed?

[AVGWarhawk]

Very true DI. I also believe most of the crush depths were conservative estimates. Based on models is one thing and actually doing it can produce different outcomes. Models base the structrual integrity as constant were the real vessel might have structrual deficiency do to poor workmenship, etc. But I agree that the vessel should slowly lose intergrity and not crush like a beer can on a frat brothers head in under 2 seconds.

[AVGWarhawk]

Originally Posted by mrbeast

I always understood that when a pressure hull fails at great depth it does so catastrophically. I saw a docu about the USS Thresher once (for those who are not familiar, the Thresher was a US SSN in the 60's that was lost due to pressure hull failure at great depth) and it suggested that the hull imploded almost instantaniously under the pressure.

Infact it also said that the crew was actually incinerated before they were crushed because the compression of the Oxygen in the boat, happened so quickly, it would cause it to spontainiously combust.

I don't know if this would apply to a WWII vintage sub, could it stand the depths that an SSN could before it was crushed?

Yes, I have read this also MB. When I read over the submarine books and look at this game, the devs employed alot of RL into the game. Perhaps this is one of them. Again, are we just Hollywood hopefuls or do they implode that fast? I'm guessing they implode that fast.

[Ducimus]

Originally Posted by tater

Wow, this is very different from what I understood. I thought that at a certain depth, the hull started taking HP damage.

tater

It used to. Now, its an arbitary decision.

"Hello there, oh you've been below this depth for X amount of time? I'm sorry, your game is now over".