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#31 |
Navy Seal
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My impression was that decksawash was achieved not with neutral buoyancy and dive planes, but with diminished positive buoyancy.
No?
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#32 |
Samurai Navy
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Will there be any AI operated boats forming a Wolfpack?
There will be AI operated boats. Wolfpack mechanics are under consideration. This is something we always wanted to do but we want to do them properly so there’s a question if we’ll be able to fit them before release. ![]() ![]() |
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#33 |
Navy Seal
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Location: Land of windmills, tulips, wooden shoes and cheese. Lots of cheese.
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Apart from AI boats and a whole list of features and improvements, not to mention a brand new engine? No, not really.
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Contritium praecedit superbia. |
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#34 |
The Old Man
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UBIs more ENTERTAIMENT please
Sorry to be replying to a post made several weeks ago, but this caught my eye and I felt I had to say something.
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#35 |
Navy Seal
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Not to mention that the diesel exhausts would most likely be submerged in a decks awash situation and would have to be closed.
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#36 | |
Commodore
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According to HA Werner (Iron Coffins) they used the electric engines a lot more than we are able to. So i don't know if that is bad. The reason for running Decks awash is to be more stealty and to be able to dive faster. |
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#37 |
Eternal Patrol
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I'm not sure exactly how they would achieve that. They could pump out fairly precise amounts of water, but letting water in was accomplished by simply opening valves in the top ot the ballast tanks. I don't think they could control the exact amount that came in.
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#38 |
XO
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i hope there will be soup
prefer hot tomato soup |
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#39 |
Pooped from posting
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decks awash (at least for german boats):
boat is trimmed down with flooded main ballast tanks, only conning tower is visible, then the fast-diving tank (schnelltauchtank), which has the volume of the conning tower could be flooded to entirely dive the boat. |
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#40 |
Eternal Patrol
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That leaves me confused. How flooded are the ballast tanks? Fully flooded, and the boat dives. Partly flooded makes sense, but as I asked before, how precisely is the flooding controlled if the only way to flood is to open the vents? The boat can only be precisely trimmed if it is submerged.
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#41 |
Pooped from posting
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as i understand it from my book, when main ballast
tanks are fully flooded the conning tower is still visible. main ballast+fastdive-tank together fully submerges the whole boat. the fastdive tank is placed below the command room in the center gravity of the boat and has the volume of the conning tower. i could scan the page but it's german ![]() |
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#42 | |
Seaman
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![]() Quote:
There are 3 groups of the main ballast tanks: aft, stern, middle. All the main ballast groups are flooded (blowed) completely, thus reducing (restoring) submarine buyoancy to about zero. For exact buyoancy and trim adjusting there are 3 trim tanks: aft, stern, middle. Aft and stern tanks are used for trim adjusting, middle one - for exact buyoancy adjusting. Flooding of trim tanks is controlled precisely. The "fast-dive" tank is used during the dive to decrease submarine buyoancy below zero (flooded/blowed completely and rather fast), thus speeding up the submarine diving and leaving water surface. Right after the sub leaving the surface, "fast-dive" tank is blowed, restoring buyoancy of the sub to about zero (otherwise the sub will sink). AFAIK the "fast-dive" tank had been implemented from XXI project only. I'm rather clever boy, am i not? ![]() |
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#43 |
Swabbie
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"Fast dive" ballast tank (Negative tank is its USS name) belongs to this class. Negative tank not only gives negative bouyancy, to accelerate the dive its situation gives a negative angle to the stern.
Safety tank (a tank usually full) also belongs to this class. It has to be blown if the conning tower became flooded, to compensate the submarine buoyancy. For this reason its situation is centrated and its state doesn't change the trim conditions. One more is the "Bow buoyancy tank" that can be blown on emergency to get not only buoyancy, also the stern elevation to get the surface in ahead propulsion. There can be another more: the "Stern buoyancy tank" I don't know how this theory is applied to WWII german Uboote. As far as I know they didn't have a separate Conning Tower as USS did. |
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#44 |
Navy Seal
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To the point of the the roaming captain, I would agree that this is a good thing. The CO on any naval vessel can't just expect to be walking around the boat willy-nilly. If the CO is away from the conn, and there is an emergency, then the CO had better haul his backside back to the conn right away. No teleportation for me, and no orders from aft torpedo.
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#45 |
Old Gang
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I imagine that for a IX-B uboat to be at periscope depth, it must have its buoyancy = zero, neutral.
I dont know how much does it weights a torpedo, maybe a couple tons? What happens if you fire all 4 bow and 2 stern torpedos at once? It would be like blowing ballasts, wouldn't it? I would like to see it simulated on SH5.
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