118d67 No.588922
>The large amount of power generated by a nuclear reactor allows nuclear submarines to operate at high speed for long periods of time; and the long interval between refuelings grants a range virtually unlimited, making the only limits on voyage times being imposed by such factors as the need to restock food or other consumables.
>Current generations of nuclear submarines never need to be refueled throughout their 25-year lifespans.
Holy fuck.
https://en.wikipedia.org/wiki/Nuclear_submarine
There needs to be a movie about some nuclear-powered Submarine acting independent in some kind of post-apocalypse scenario. Imagine being a submarine officer, when the evens of the Fallout Universe happen and cruising around in it for the rest of your life.
3c01fc No.588924
>>588922
in the TV series the last ship there is a british nuclear sub doing exactly that, it's actually good a show right up until season three
4d7580 No.588925
>>588922
In Metro 2033/2035 there are rumors of a soviet nuclear submarine powering a small village near a beach. But it doesn't expand on it anymore.
321f1d No.588927
>>588922
>Imagine being a submarine officer, when the evens of the Fallout Universe happen and cruising around in it for the rest of your life.
<Post apocalyptic submarine pirates
3c01fc No.588929
>>588927
i would sign up for that
0021a9 No.588938
How does one even effectively sink a submarine though? They're practically invisible as long as the captain doesn't fuck up.
5529d8 No.588964
>>588938
Magnetic sensors have very limited range, but if the submarine (or any other large chunk of metal underwater) is there they'll find it. Active sonar will do the trick as well, although they do show the submarine exactly where you are (potentially at longer ranges than they'll find the target sub at). I seem to remember someone saying that modern subs could be found by looking for the 'silent spot' in the water - that they were so quiet they stood out to modern passive sonar. Is that accurate or some sort of bizarre dream I had?
118d67 No.588968
>>588964
>I seem to remember someone saying that modern subs could be found by looking for the 'silent spot' in the water - that they were so quiet they stood out to modern passive sonar. Is that accurate or some sort of bizarre dream I had?
As someone who knows nothing about this, I can only say that would only be logically the case if either the Sub was somehow able to "deafen" his surroundings through technology or alternatively because the area the sub occupies can't produce any normal background sound and this lack of background sound is what the passive sonar is detecting.
5529d8 No.588971
>>588968
>this lack of background sound is what the passive sonar is detecting.
That sounds about right, but I can't find sources on it.
118d67 No.588976
>>588971
It would surprise me, if there were Sonars this insanely precise. You'd also need localized data of the area you are in. You can't just compare it
5529d8 No.588977
>>588976
Probably not accurate (or the naval equivalent of fuddlore) but it did sound rather fun in my head.
4596b5 No.588987
>>588976
There's massive stationary sonar pickets spread throughout the ocean. Not to mention the private hydrophones and such. In the event of an actual war, say a sub is detected momentarily for some reason, or launches an attack on something. What'd happen is that one or two recon bombers of a model would fly out and establish a sonar picket of varying active or passive types in the general vicinity of the contact. The process is aided by whatever land may be nearby, ideally ending up where you effectively have the contact contained and can close a circle on it. Via this method, triangulation or better is achieved and depth charges will be dropped. Private hydrophones, for example, ones used for tracking whale migrations or seismic activity, can and have detected the sounds of a submarine breaking up or a torpedo impact from well over 3,000 miles away. Effectively the length of a continent. Military grade listening equipment, and granted, it depends, are just as good and certainly better in most aspects.
e99781 No.588990
Knew a guy who was in charge of the nuclear reactor of the sub. He was told how the radiation that was released was not dangerous to humans
4596b5 No.588991
To expound a little bit more, do you guys think ASW doesn't exist anymore? Going off the top of my head, it could've changed, but we have the P-3, big 'ol fucker, and the SH-60 who do the legwork for this stuff. With the introduction of missile torpedoes, as soon as the location of a sub is confirmed, it's dead. It gets detected once, you can determine its exact profile, make and model, what speed it's going, what its bearing is, all of it. Towed arrays, submarines can easily detect other submarines, thermal layers regardless. For fucks sake there were nuclear depth charges in service for a while. And referring to OP directly here, he even said it himself, nuclear subs are still limited by how much food they can carry. A couple months is going to be the hard limit.
79b393 No.588997
>>588990
The radiation released is the same "kind" of radiation as in any other similar nuclear reactor. But the quantity of radiation is low enough that the effects are nonexistent. People think of radiation as being some kind of magic force that causes tumors to sprout all over your body with near zero dosage. It takes ~100 rems to cause radiation sickness in even a significant minority of people, the first changes to blood chemistry aren't even noticeable in laboratory tests (much less cause any actual biological effects) until ~25 rems, and I remember seeing a multi-generational study on mice (that I don't have on me but will post if I can find it) that indicated that radiation exposure below ~10 rem/year or thereabouts had no significant effect on the percentage of mice that were ever afflicted with cancers or tumors. So any radiation dosage less than 10 rem/year would be effectively insignificant in any biological sense.
In comparison, the radiation exposure limits for nuclear workers set by the Nuclear Regulatory Commission is 5 rem/year; significantly below the level at which any effects would be noticed even on a long-term genetic level. The limits for the general public (which are used to determine proper shielding and distance for anything that would produce radiation, such as a nuclear reactor) are even lower, at 0.1 rem/year.
So it can safely be said that any source of radiation that is properly maintained in accordance with exposure limits wouldn't be a danger to anyone, be it a worker or the general public around the source, so long as you don't get some sort of catastrophic event.
d933fa No.588998
How do seawolfs compare to the virginias?
2de109 No.589031
>>588987
Sonar isn't a reliable way to locate enemy submarines trying to avoid detection. In fact no technology would allow you to effectively locate them in an ocean without prior knowledge of where they might be. The problem is that sonar has a huge rate of false positives. Every sea creature bigger than a dolphin has the potential to generate a sonar return indistinguishable from a submarine. Even if it doesn't happen often, the quantity of sea life ensures that the number of false positive contacts is unmanageable. Trying to validate all these contacts using ASW aircraft at a high enough rate to keep a country safe from ballistic missile attack is impossible, at least with the quantity of ASW aircraft that nations have today. If an enemy submarine is positively identified, sonar networks could help keep track of it. But if an ASW aircraft or surface ship doesn't arrive within a few hours, they are very unlikely to continue tracking it.
I'm basing these claims on the OTA's 1981 assessment of the survivability of a ballistic missile submarine fleet, so it's not simply asspull. I don't think any paradigm shifts have occurred in ASW since then, have they?
4596b5 No.589038
>>589031
Passives can easily distinguish between propeller screw types, let alone differentiate between biological and artificial. What do you think sonar techs do all day? Techies are trained to know the difference between all the visual and auditory profiles, that's their job, that's how sonar works. You'd be right if you were referring solely to actives, which intrinsically can't differentiate, but those typically get deployed either along with a passive or very near a target.
Went down to the ARA San Juan thread to grab pic related. The bottom profile has been confirmed to be organic, for an example.
b9c13b No.589039
>nuclear sub
>ultra-quiet propellor
Isn't that totally pointless because you have to run very loud cooling systems every second to stop the reactor from going Chernobyl on your ass?
89a3b1 No.589045
>>589038
I remember reading a Tom Clancy book where the SONAR techs saved the day by distinguishing subs from organic material. Been way too long can't remember which book.
8b6af4 No.589053
>>589039
Top-tier nuclear submarines are about as quiet as diesels unless the diesel shuts down everything and just sits on the bottom waiting for something to pass by it. They quiet the cooling system by ensuring that the pumps that circulate water in and out of the reactor don't cavitate. It's cavitation that produces lots of sound, not the mere presence of a pump or impeller.
Older nuclear submarines are a lot louder. Most of those aren't in service any more outside of the Chinese navy, whose Type 091 SSNs are on par with 1960s Soviet Victor Is and whose Type 093s are louder than Victor IIIs.
d036b1 No.589054
>>589045
>forgetting Hunt for red October
6c4eaa No.589058
>>588922
They need to take on food, so for all intents and purposes stop as often as diesel subs.
The benefit is that it's one less thing to do during refuel operations, which means the whole refit is done much faster. You can even airdrop food into the sea and the sub can collect it.
e6f8db No.589098
>>589031
I always had a theory in my head about using YAL-1s (assuming they were actually produced in great enough quantities) to shoot down SLBMs as they were launched assuming you had a basic idea of where a sub was. No idea how realistic it is, though. A boy can dream, though.
https://en.wikipedia.org/wiki/Boeing_YAL-1
da2617 No.589117
>>589039
You mean *really quiet* cooling systems, and strapped with so much sound-proofing it's almost funny.
Propellers, on the other hand, you can't really hide them inside the boat. (Attempts have been made, officially none succeeded.)
ac3cdb No.589120
>>588964
>>588968
I'm pretty sure I read a book about a sub with sonar that could find an enemy sub by the difference in background noise even if the sub itself was completely silent; might have been first pic related. No idea if it would actually work or how hard it would be, but people have at least thought about it.
ff7e4f No.589268
>>588990
I know a guy who worked on a nuclear reactor for aircraft and then became a nuke for subs after he was threatened with discharge for being "unable to perform his duties" when he maxed out his radiation hours. He told me how you're full of shit and he's had to have cancer treatment twice since he got out of the military/now does multiple screenings/year for cancer because of it.
d933fa No.589284
How do seawolfs compare to the virginias?
4596b5 No.589286
>>589284
Ask yourself why no one answered the first time. Are you referring to a block 3, 4, block 7 Virginia or what? It's like asking someone to compare a 'StuG' to a 'Sherman', that's not how it works, there's different models and different things to differentiate. Try google instead of asking retarded questions.
ac3cdb No.589288
>>589239
Well, what noise do you think dolphins would make while fucking?
fe1dda No.589289
>>589288
dolphins fuck belly to belly you need to brush up on your dolphin porn
6c4eaa No.589316
>>589268
>guy retardedly maxes out radiation hours in contravention to regs
>this somehow proves that radiation on a sub is dangerous for everyone who isnt a retard
Hey put your microwave in the trash, its dangerous. My friend broke the front window of his microwave, stuck his head in, and turned it on….. Now he cant read so good. Microwaves are too dangerous!!!!!1
Not to mention that I think your buddy lied to you. He likely got threatened with discharge for being irresponsible or dumb, and decided to purposefully max out his rad hours so he could get that juicy medical discharge claim. Or maybe thats just what hes telling people since getting a stern talking to from the exec for getting anally gangbanged on a reactor would be an embarassing story.
de7015 No.589344
>>589268
>threatened with discharge for being "unable to perform his duties" when he maxed out his radiation hours
Except the fact that this happened at all (assuming it did) is itself proof that personnel reaching those levels is the exception rather than the rule.
0e0102 No.589356
>>589268
>nuclear reactor for aircraft
You mean the ones that were poorly shielded and notorious for being death traps?
babb2e No.589372
>>588938
>as long as the captain doesn't fuck up
8fc3a7 No.589455
>>589356
Despite his retardation, I'm pretty sure he meant a carrier, not the NB-36 or Tu-119.
3a68f5 No.589492
>>589455
>nuclear reactor for aircraft
>aircraft
Nuclear Zeppelins inbound
449fed No.589493
>>589268
>because of it
Many people get cancer and vast majority of them never come close to a nuclear reactor, this seems like circumstantial evidence.
3105ea No.589499
>>589492
Shame the whole thing was abandoned in favour of ICBMs. I mean, shielding and human safety concerns aside, from what I have read the thechnical and engineering aspects of the programme were going on rather well.
6c4eaa No.589509
>>589493
Cancer has more to do with genetics, viruses, fungi, fucked up chemicals and unclean living environment. The solvents in any machine shop on a navy vessel are more carcinogenic than standing next to a nuclear reactor for an entire shift.
The number of cancers worldwide in the last decade due to ionizing radiation from nuclear technology can be counted on one hand.
369969 No.590009
>>588927
>>588929
There's a game series that kind of captures that in some ways, though it's much more lighthearted and the ships ply the sky instead of the sea, in search of salvage from the previous fallen civilization. A strangely comfy, Ghibli-esque flying home that mashes up modest amenities like a full kitchen and a livingroom with couches and a fishtank with engineering panels and reactor rooms.
369969 No.590013
>>590009
You can even find a cute stray cat to bring home. And every time you come back, they'll have multiplied. It can get pretty ridiculous. Anyways. Really homey and comfy adventures, with fluff and gameplay that suits the feeling. Clicking on kitchen cabinets will get you little bits of fluff about how the dishes are magnetized to not fall when the ship rolls, or character-expanding comments on what's what. And when the ship gets damaged in the second game, if you repair it fully (costing a lot of money), your primary love interest will start using the kitchen to make you lunches to go (which function as single-use full-health items) as a thank-you.
Brb, pricing out a zeppelin.
09bd8c No.590075
>>589120
>we are safe for now, as long as we stay quiet.
>captain! there are dolphins fucking off our starboard!
>torpedoes inbound!
f15ab2 No.590089
>>590075
Clearly the sub operators need to be proficient in making the same sounds as various cetaceans fucking, in order to blend into the background audio. I propose all naval officers applying for sub commander positions or radar techs undergo intensive training on the subject.
fd431a No.590092
>>590009
>>590013
Thanks for reminding me megaman legends 3 never
89a3b1 No.590096
>>589054
It wasn't Red October, it was the one where Japan makes a MIRV.
I haven't read Red October yet, it is on my list.
068f66 No.590167
>>589058
why haven't they come up with some jules verne shit where you put on a diving suit and pop out of the airlock and go gathering sea cucumbers and sea lettuce and spearhunting sea cows and shit?
9364ff No.596440
The Germans were right, submarines are the future of efficient naval battle
cb6262 No.596451
>>590089
>Not just adding a cage filled with horny dolphins to the towed array
>SMHTBQHWYL
ebf0a8 No.596774
>>589053
>They quiet the cooling system by ensuring that the pumps that circulate water in and out of the reactor don't cavitate.
>pumps
https://en.wikipedia.org/wiki/S8G_reactor
>This nuclear reactor utilizes natural circulation[2][3][4] which is capable of operating at a significant fraction of full power without reactor coolant pumps.
97e42c No.596817
>>596451
>Not just dressing up as dolphins with oxygen masks and dancing underwater
7e3117 No.596826
>>596817
>not just making being a furry a federal crime punishable via enforced penal naval service where they serve on subs as the designated Aquatic Intercourse Audio technician
Hypotethically, you could expand this to all theaters of war where such audio detection tech is applied, basing the accused's punitive assignments on what they were jerking it to before arrest.
26a366 No.597356
>>596817
>not putting warheads inside dolphins trained to swim towards enemy submarines
32176f No.597357
>>597356
I was thinking about writing a sci-fi short story about a nation using electrodes in the brain to weaponise birds, sort of like the silt striders of Morrowind. Planes would have birds fly into the engines whilst infantry would be killed by Allah ackbar birds.
26a366 No.597363
>>597357
>Mujahideen airforce
Haven't there been attempts at remote controlled insects and rats?
56ff02 No.597366
>>590009
>first pic
If I ever get a bajillion dollars, I'd go Howard Hughes and try to build that thing in the real, but as a boat. I think it might work, it's very boaty.
1ca1ba No.597412
>>597356
The idea was sound, the execution was fucking shit.
Dogs were trained using sadistic counter-productive methods, by starving them and then putting food under the training tanks. They were using soviet tanks instead of german tanks. They didn't do the battlefield stress training. When they'd release the dogs in battle, they'd just get scared shitless and run back and try to hide under the soviet tanks.
The germans were using RC self-propelled anti-tank landmines. These worked great but they costed absurd amounts of money, absolutely not worth it.
af4cdf No.597489