Arihant-class SSBN - News & Discussions
- Thread starter Nick
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yea lol. come on, no one puts INS aridhaman as a plaque on a sub, there is also this weird shine and the background looks too bright. The water is also tooo watery(its trying to hard to be realistic)
There are some unconfirmed sources which mention possible use of magnetic bearings in advanced motor/generator systems in Western SSNs & in latest Russian SSBNs & SSGNs, though this remains speculative due to highly classified nature of submarine propulsion tech...... Semi confirmed reports also mention that Ship Service Turbine Generators (SSTGs) aboard Virginia class submarine operate without lubricated bearing & that’s a big deal because eliminating lube oil systems removes a major source of structure borne & fluid borne noise in a sub ( oil pumps, flow turbulence, gear interactions ) while also simplifying machinery & improving reliability for long patrols. This fits perfectly into broader shift toward fully electric, integrated propulsion ecosystems where noise isolation is engineered at every level from raft mounted machinery & ultra precision balanced rotors to advanced pump jet propulsors basically attacking noise at source, transmission & radiation stages....... Active Vibration Cancellation (AVC) in submarines is another low key but critical sound silencing tech not talked about much where distributed sensors, high speed digital controllers & actuators dynamically generate counter vibrations to suppress low frequency signatures that passive isolation simply can not handle & when you combine that with magnetic bearings you are basically pushing dB levels down toward ambient ocean noise levels..... Put together all this clearly points to where next generation nuclear submarine design is headed with convergence of oil free rotating machinery, real time adaptive vibration control & fully integrated electric propulsion to achieve near acoustic invisibility..... Keeping in mind the induction of our latest SSBNs which may or may not have incorporated some of these advance technologies...... future subs at least would need to factor in these technologies right from design stage if true stealth parity with top tier navies is to be achieved regards.
Note..... Future nuclear submarines in all likelihood will incorporate sCO₂ cycle replacing steam cycle completely but this is at Experimental & prototype stage. Another field where we need to do active research.
Note..... Future nuclear submarines in all likelihood will incorporate sCO₂ cycle replacing steam cycle completely but this is at Experimental & prototype stage. Another field where we need to do active research.
I heard american subs have like acquistics which like is close to the sound of the ocean, how stealthy are our current submarines and what are we using to make it more silent in the future.
The sheer scale of things you need to maintain a CASD. I doubt Pakistan could achieve and maintain that even with Chinese help.
So as It turns out this is most likely a S4 submarine model and not a S5 model like people had suspected for so long leaving the hump backed one is the only publically know design of S5
I guess people were referring to the model in the middle as the updated design for the S5 class of subarmines.
A protruding missile hump on the S5 class wouldn't make sense as we have been able to achieve a relatively tapered missile compartment design on the S4 & S4* compared to the S2 & S3.
We would most likely take this a step further on the S5 with a fully streamlined hull akin to the French Triomphant class and the upcoming District of Columbia class of the USN.
I fail to see any noticeable difference between the middle and right model, they more or less look the same to me.
It may not make sense right now but S5 will be with the Indian Navy for a very long time most certainly for longer than Arihant class and as such it only make sense to leave room for future upgrades and that will not be possible with a S4 style flush design.
Maybe the hump will not be as prominent as in the earlier model but it most certainly will be there
Do we even have the capability to make a 13m cylindrical pressure vessel. (I don't think so)
That's what will define if the sub will have a hump or will it be streamlined
Imo, the hump on the Aridaman looks a bit more pronounced because she packs 8 SLBM tubes in a single row (the first ssbn to do so worldwide!).
Compared to her sister ships, the hump seems to taper less gradually from front to back. Or it could just be the angle that the shot was taken from.
S5 could well turn out to be a bigger beast than the 13500t hull estimated previously, depending on the size of the K6 which would in turn dictate the silo arrangement ultimately impacting overall hull dimensions.
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These are the 2 pictures related to the s5 available on the web. The one with the big hump looks like a copy of the Delta class of the 70s. The other one looks more modern but still behind current and next US, UK & French SSBNs (no x rudder, no pump jet, etc.)
Curious to see the final, real design of the S5.
Let's see what will be the size of the K5/K6 missiles and so where India stands in this field...
The best SLBMs have the following size and range (official figures which can be found on web) :
The best SLBMs have the following size and range (official figures which can be found on web) :
- Trident 2 : 13.6m/2.11m with a max range range of 11 500 km (with reduced load, 4 W88 warheads : 700/800 kg all together)
- M51 : 12m/2.3m with a max range of 10 000 km (with 6 TN75 warheads, don't have info regarding the weight but I assume all together they should weigh around 1T)
The bits in from the sail tower and forward align with the modern standards.
As for the hump, they have tried to make the taper far less abrupt than what you would find in the older SSBNs. Even the coming tower is quite small as a result.