Air and Flooding

[Night60700]

Okay so I can't seem to find any real answers to these questions.

First, why do I lose compressed air when I brake the surface. I use some underwater for blow ballast. But other then that, staying buoyant in deep water doesn't use it nor does torpedoes.

Also Flooding. What are the rules about flooding.

Can a compartment become completely flooded without killing everyone on the sub? What do I do if my pumps are destroyed and I can't get water off my ship and blow ballast doesn't work?

I'm using the stock game because its fun and I'm still learning how to fight off 5 B24's at once. Does GWX change any rules about compressed air and or flooding?

Post Edit: Can you lose compressed air/fuel from being damaged? As in a "leak".
Can magnetic ells can explode without touching a ship? As in by going under it?
Does my ship flood faster the deeper I am?
Can I set a "Load Out" so when I rearm I have all the torpedoes I want or do I have to switch them out every time?
What does "Stationary, Moving away" mean? I usually am heading at such targets. So how can a stationary target I'm moving towards be moving away?

[Wreford-Brown]

First, why do I lose compressed air when I brake the surface. I use some underwater for blow ballast. But other then that, staying buoyant in deep water doesn't use it nor does torpedoes. Your compressed air refills when you hit the surface. There should be no need to blow ballast in order to surface - your boat will sail to the surface without blowing ballast.

Can a compartment become completely flooded without killing everyone on the sub? What do I do if my pumps are destroyed and I can't get water off my ship and blow ballast doesn't work? If a compartment is fully flooded you'll lost the boat. If your pumps are destroyed and you can't blow ballast, the only way you'll go is down!

Post Edit: Can you lose compressed air/fuel from being damaged? As in a "leak". I don't think you can lose compressed air through damage, but you can lose fuel. It doesn't tend to leak, you lose a fuel tank immediately it is damaged.

Can magnetic ells can explode without touching a ship? As in by going under it? Yes, they are designed to explode under a ships keel.

Does my ship flood faster the deeper I am? I think so...

Can I set a "Load Out" so when I rearm I have all the torpedoes I want or do I have to switch them out every time? Yes, use Wolfies Tweak Pack (it's in the 'other modders mods' link in my sig block).

What does "Stationary, Moving away" mean? I usually am heading at such targets. So how can a stationary target I'm moving towards be moving away?
Sometimes a 'stationary' ship can be moved by wave action and, although technically stationary, can be reported as moving away (pushed away by the waves).

The report ignores the movement of your own ship. Think about kicking a ball and running after it. The ball is always moving away from you until it stops rolling (or you catch it up!).

[Pisces]

The description "moving away", "closing", "constant distance", or whatever the exact English text is, really only is a rough indication of AOB. Between about 60 and 120 AOB they say constant distance.

[Maceaciadh]

I'm using the stock game because its fun and I'm still learning how to fight off 5 B24's at once. Does GWX change any rules about compressed air and or flooding?


5 bombers? are you trying to die lmao, i would try to fend off 1 or maybe 2 if i am feeling lucky but you are asking to be sunk there. GWX doesn't change anything about them really and the rest of your questions seem to be answered :D

a simple tip i am not sure that everyone knows is that if you max out your damage control and flooding recovery time is still greater than lost compartment time you should move men into that area. crew members in a damaged section will increase repair rates slightly which may be enough to save the boat or at least fix it faster

edit:

First, why do I lose compressed air when I brake the surface. I use some underwater for blow ballast. But other then that, staying buoyant in deep water doesn't use it nor does torpedoes.

you will use more compressed air if you are stationary and trying to float up rather than moving at speed and using bow planes. also the deeper you are the more compressed air you need to use to force the ballast out. the compressed air recharges from the diesel engines and can be recharged underwater if you have the snorkel fitted to your boat

[Night60700]

Thanks that's about it.
As for the 5 bombers, I can take out 3 before they even start dropping bombs on me. I can usually get one more before I take too much damage and have to dive. From what I have read, GWX makes the AI much better and therefore I want some practice on bad AI, before I face good AI.

Also I had a question on depth. I'f I'm just below the surface (10m-15m) in the stock game it doesn't seem that planes can see me. Meaning that if I move just below the surface, and move to a new spot just 100m away planes can't seem to hit me with anything, even if I keep my scope up. Does GWX make it so that the water is more transparent like in SH4 and even if it doesn't, does it make the AI act like it is?

Just to keep in terms of the name of the post. I read that in GWX ships die from flooding levels, more than the damage to the ship. Does this mean that it becomes harder to blow up the magazine or fuel tank?

Post Edit: How do I get help from friendly AI in the stock game. Is getting this help easier in GWX?
I need their help for 2 things.
First I need them to start attacking I convoy I can see on Sonar.
Second I'm underwater with not enough compressed air to blow ballasts and can't move my dive planes. Meaning I won't sink but I need heavy repairs before I run out of batteries or O2 for that matter.

[Maceaciadh]

Thanks that's about it.
As for the 5 bombers, I can take out 3 before they even start dropping bombs on me. I can usually get one more before I take too much damage and have to dive. From what I have read, GWX makes the AI much better and therefore I want some practice on bad AI, before I face good AI.

Also I had a question on depth. I'f I'm just below the surface (10m-15m) in the stock game it doesn't seem that planes can see me. Meaning that if I move just below the surface, and move to a new spot just 100m away planes can't seem to hit me with anything, even if I keep my scope up. Does GWX make it so that the water is more transparent like in SH4 and even if it doesn't, does it make the AI act like it is?
i dont believe they can see you through the water however they will see you pretty easy if your scope is up (i think height may make a difference but i am sure in RL they could see your trail if moving)The AI for all ships and planes are set to veteran so they are tougher opponents meaning more accurate and better at spotting you sometimes before you spot them



Just to keep in terms of the name of the post. I read that in GWX ships die from flooding levels, more than the damage to the ship. Does this mean that it becomes harder to blow up the magazine or fuel tank?
no you can still blow them up just as easy,it just may not be a fatal blow to the ship as they have increased HP, once or twice i have hit fuel bunkers even in stock and the ship continues on fire for quite some time


Post Edit: How do I get help from friendly AI in the stock game. Is getting this help easier in GWX?
I need their help for 2 things.
First I need them to start attacking I convoy I can see on Sonar.
Second I'm underwater with not enough compressed air to blow ballasts and can't move my dive planes. Meaning I won't sink but I need heavy repairs before I run out of batteries or O2 for that matter.
if you send a contact report you may get help from the luftwaffe or other uboats but this take time to arrive, also you need to see a convoy or task force for them to take any interest (i have heard it is 3+ ships are needed to trigger support). i have only ever had support from air and all they do is steal your kills :wah:.dont think this has changed at all in GWX

i think they can only launch once you confirm visual contact of 3+ ships. also dont blow ballast often its a huge waste unless your really deep and need to get up fast to attack and then dive again. just set ahead standard and dive planes will bring you up easily. if one set of planes is destroyed depth keeping becomes extremely difficult e.g. full or flank will make you dive without bow planes and aft planes are mainly for stabilisation so you can dift up and down by a few metres which can cause you to be seen(if both are out you have pretty much had it and should abandon the patrol) O2 can last very long, batteries is what you nearly always run out of first(never find yourself in a position where you have no compressed air,always try to use bow planes when you can)

[CaliEs]

If a compartment is fully flooded you'll lost the boat. If your pumps are destroyed and you can't blow ballast, the only way you'll go is down!


In reality only a fully flooded diesel-engine-room (78 tons of water) was critical (speaking here only of the weight-problem).
Because the diesel-room was the largest-room in the u-boat (78 m^3), it was more or less at the end of the boat and so you have to take additonal 78t of water in the front ballast tanks to trim the u-boat. So overall 156 tons of water in the u-boat ... that was a probelm. A type VII could create only a max buoyancy between 110 and 150 tons.

I am not quite sure about value "78 m^3". It could also be 86 m^3 or similar.. I am too lazy to check it. The number relates to a type VII.

http://www.subsim.com/radioroom/showthread.php?p=1920829#post1920829

[Sailor Steve]

In reality...
You talk about taking on five bombers and then talk about reality? In reality one B-24 was more than enough to destroy a u-boat. One effective penetration of the pressure hull and you were no longer a submarine, but a rather slow torpedo boat. The airplane was one of the u-boat's worst enemies.

And GWX reflects this fairly well.

[CaliEs]

You talk about taking on five bombers and then talk about reality? In reality one B-24 was more than enough to destroy a u-boat. One effective penetration of the pressure hull and you were no longer a submarine, but a rather slow torpedo boat. The airplane was one of the u-boat's worst enemies.

And GWX reflects this fairly well.
I was talking about the physical aspects on a fully flooded apartment of an type VII u-boat in reality. and nothing else.

[Wreford-Brown]

In reality only a fully flooded diesel-engine-room (78 tons of water) was critical (speaking here only of the weight-problem).
Because the diesel-room was the largest-room in the u-boat (78 m^3), it was more or less at the end of the boat and so you have to take additonal 78t of water in the front ballast tanks to trim the u-boat. So overall 156 tons of water in the u-boat ... that was a probelm. A type VII could create only a max buoyancy between 110 and 150 tons.

I am not quite sure about value "78 m^3". It could also be 86 m^3 or similar.. I am too lazy to check it. The number relates to a type VII.

http://www.subsim.com/radioroom/showthread.php?p=1920829#post1920829



Absolutely agree with you :yep:... but, I was only talking about SH3 and the way in which the game works.

[Sailor Steve]

I was talking about the physical aspects on a fully flooded apartment of an type VII u-boat in reality. and nothing else.
Fine. I just question your selective use of "reality".

[Osmium Steele]

First, why do I lose compressed air when I brake the surface?

In my experience, if you surface at slow speed, 1/3 or less iirc, you'll use compressed air to evacuate the remaining water from the ballast tanks once you hit the surface.

Whereas, if you surface at a higher speed, your forward momentum is enough to allow you to stow the bow planes, using just the stern planes to remain surfaced while the pumps evacuate the remaining water.

Either way, the faster I am going when I surface, the less compressed air I use to stay surfaced.

High sea states can affect the math here as well.

[sublynx]

In my experience, if you surface at slow speed, 1/3 or less iirc, you'll use compressed air to evacuate the remaining water from the ballast tanks once you hit the surface.


Valuable information! That's why I have sometimes managed to lose a lot of compressed air while hydrophone hunting in fog. Popping up and down too slowly. I'll have to try that up and down routine done faster :up: