Indian nuclear submarines

[torque456]

Iirc we had tha

we have more vertical launch tubes at sea, then people could think we have.

It is speculated we have had such capability since early 2000. Hopefully we get to know about them sometime.

 

[captscooby81]

Arihant .................................

 

[Kalki_2018]

Still only see 4 Silo doors on it. Has it fired a K-4 from it yet?

 

[sayareakd]

Still only see 4 Silo doors on it. Has it fired a K-4 from it yet?

Yeah k4 ejection tests...................

 

[Babloo Singh]

Now look at the clear picture the one above under the blue cover and the next pic with both Subs

View attachment 24111

Comparing this image with new image of Arihant......
I am sure the dimension of conning tower will be same for the Arihant siblings, so ratio of conning tower to total length will give us idea about length....
It looks like one in open isn't Arihant as it's longer & the one under cover is even longer than the one in open....
:biggrin2::biggrin2:

 

[Chinmoy]

Deliberate leakage?????

It could be..................

 

[Vinod DX9]

"

SPECIFICATIONS of India's proposed 6 Nuclear Attack Submarines ( SSN or SSGN Submarines) :

Aadi-class SSN:
The Indian Navy's lack of capable submarine fleet is a great detriment in its way to ensure safer and prosperous Indian Ocean.

In 2015, the Government of India approved of the constructions of 6 nuclear powered submarines. These will be designed by the Navy's in-house Directorate of Naval Design and build in Shipbuilding Centre Vizag. The expertise gained from the design of Arihant-class SSBN will be transferred to the SSN Programme. Whereas Arihant Class submarines will be carrying ballistic missiles, Aadi Class submarines will be carrying cruise missiles.

Class overview :
Name: Aadi

Builders: Shipbuilding Center Vizag

In commission: 2021

Cost: $9.15 billion for the entire programme

Units planned : 6

General characteristics:
Type: Attack submarine

Displacement: 7,000 tons

Length: 110 meters

Beam: 11 meters

Draught: 10 meters

Installed power: 1 x BARC PWR

Propulsion: 1 x Nuclear propeller shaft

Speed: 28 knots or 52km/h

Complement: 90

Sensors: USHUS Sonar, CABS IFF

Armament: a) 4 x torpedo tubes with stowage up to 36 weapons: Advanced Light Torpedo Shyena; and, Varunastra, a heavy weight torpedo.
b) 12 x combination of BrahMos and Nirbhay cruise missiles

Nuclear reactor for these submarines being built by Bhabha Atomic Research Centre is at an advanced stage of development. It should be noted that these are tentative specifications which may be slightly modified at the time of actual making. Once you get sure enough after building first vessel you plan bigger vessels or if not the size, use still more cutting edge technology. That has been the case with SSBNs and succeeding vessels to Arihant are much larger.

The other thing readers can note is that these submarines will be carrying supersonic Brahmos Missiles as well as subsonic Nirbhay missiles. Both have their own advantages. Brahmos will allow the target little time to react. On the other hand, Nirbhay having lesser speed can be better manoeuvred in case target moves. Thus you achieve greater chances and accuracy of hitting target.

Readers express apprehensions that actual induction may overshoot by decades. We would like to allay fears that times have changed now. This project is of paramount concern to the government considering Chinese threat. Already there is talk of Government muling considerable jump in defence budget from this year so that such projects are on schedule. Moreover infrastructure in the country has got greatly augmented than say few decades back.

Still when you built such high-end systems you try to incorporate all the latest technologies that are there in the world, so that maximum deterrence is achieved. After all such submarines cannot be built every other day. So there may or may not be time lag of couple of years but the project is being undertaken in all the sincerity and urgency.

Earlier India has INS Chakra as the only SSN which has been taken on lease from Russia. But in case Indigenous SSN programme gets delayed India might take up one more Akula II class nuclear attack submarine on lease. As part of the contract India can buy these submarines at the end of lease.

"

Can anyone validate the article?

 

[aditya10r]

Aadi-class

That's my name.

_________________________________________

 

[Suryavanshi]

That's my name.

_________________________________________

Arihant, Arindamann

Next Aditya class sumbarine

 

[Tanmay]

Arihant .................................

View attachment 24433

Where did you spot it????????????????

 

[captscooby81]

INS Virbahu..............................

Where did you spot it????????????????

 

[Kshithij]

Why can't the Arihant submarine be used as SSN? Isn't Arihant class also weighing 6000tonnes and based upon Akula submarine in design? Akula is a SSN, not SSBN submarine. The SSBN submarines of USA, UK, France and Russia weigh 14-18 kilotonnes. The Arihant weighing just 6 kilotonnes is much smaller than what SSBN should be. Why can't Arihant itself be a SSN submarine?

 

[sayareakd]

Deliberate leakage?????

It could be..................

Come to think of it, we got more than three nuke subs, so we dont have space to park them.

 

[aghamarshana]

Why can't the Arihant submarine be used as SSN? Isn't Arihant class also weighing 6000tonnes and based upon Akula submarine in design? Akula is a SSN, not SSBN submarine. The SSBN submarines of USA, UK, France and Russia weigh 14-18 kilotonnes. The Arihant weighing just 6 kilotonnes is much smaller than what SSBN should be. Why can't Arihant itself be a SSN submarine?

SSNs must be fast,even faster than SSBNs which are used only as a Strategic Deterrent.SSNs must be faster coz after attacking a target then need to quickly evade frm the location asap.An SSBN never fires missiles,it only sits tight until nuclear confrontation takes place or such orders(1st strike) r issued in the interest of national security.The real action like launching cruise missiles etc is done by SSNs which have more powerful reactors.Simply put,it isn't possible to gain speeds with a reactor used by Arihant.We built an SSBN first,even though it has less displacement,because
1.We want to complete our Nuclear Triad.
2.Our maiden indigenous reactor is less powerful,so it is apt that we build a SSBN first.
S5 would be of the size of western Boomers with similar displacement,number of missiles etc.
No power gives us a glance of it's Boomers,even Russia wouldn't.So,we built Arihant based on Akula.
Proud of our shipbuilding fraternity.

 

[Kshithij]

SSNs must be fast,even faster than SSBNs which are used only as a Strategic Deterrent.SSNs must be faster coz after attacking a target then need to quickly evade frm the location asap.An SSBN never fires missiles,it only sits tight until nuclear confrontation takes place or such orders(1st strike) r issued in the interest of national security.The real action like launching cruise missiles etc is done by SSNs which have more powerful reactors.Simply put,it isn't possible to gain speeds with a reactor used by Arihant.We built an SSBN first,even though it has less displacement,because
1.We want to complete our Nuclear Triad.
2.Our maiden indigenous reactor is less powerful,so it is apt that we build a SSBN first.
S5 would be of the size of western Boomers with similar displacement,number of missiles etc.
No power gives us a glance of it's Boomers,even Russia wouldn't.So,we built Arihant based on Akula.
Proud of our shipbuilding fraternity.

For the low weight of 6000tons, the Arihant reactor is just powerful enough. The SSN like Sea Wolf class of USA is quite good and has similar weight as Arihant. The reactor is 45MW instead of Arihant's 83MW in shaft power. The SSBN also needs large size to accommodate ICBMs in large numbers. Just holding 4-6 missiles will not be enough. They must be capable of holding 20+ Agni 5 missiles weighing 50tons and length 18 metres and diameter 2 metres.

The Akula submarine is of higher technology as it also incorporates stealth. BARC has clearly told that increasing the size of reactor is easy as long as space increase happens. 15 ton SSBN is relatively easier to make than a SSN. I won't agree that AKula was a simpler technology and hence given by Russia. Akula was a far more tougher technology than any SSBN and once that technology is known, increasing the size to get SSBN is easy

If India made a 6000ton Arihant, it is not due to lack of technology to make 15ton SSBN but out of other consideration. Also, I don't see a reason to maintain SSBN when we have ICBMs available. The silos and other bunkers will easily help in avoiding get hit by enemy strike. Also, with advanced radars, the strike will be detected a few minutes ahead and counter strike can be readied. The need for SSBN itself is flawed.

If you ask me, the Arihant itself is the SSN and India is lying about it being a SSBN.

 

[binayak95]

For the low weight of 6000tons, the Arihant reactor is just powerful enough. The SSN like Sea Wolf class of USA is quite good and has similar weight as Arihant. The reactor is 45MW instead of Arihant's 83MW in shaft power.

The Arihant's reactor produces 83MWs of thermal power. Of which only a percentage is usable power.

The Akula submarine is of higher technology as it also incorporates stealth. BARC has clearly told that increasing the size of reactor is easy as long as space increase happens. 15 ton SSBN is relatively easier to make than a SSN. I won't agree that AKula was a simpler technology and hence given by Russia. Akula was a far more tougher technology than any SSBN and once that technology is known, increasing the size to get SSBN is easy

The Akula IIs are far better subs not because of just the fact that it has been built to be extremely quiet. The Arihant was built to be very quiet too. I will not reveal what makes the Akula II special. But its far more than the fact that it is nearly impossible to detect when its submerged.

If India made a 6000ton Arihant, it is not due to lack of technology to make 15ton SSBN but out of other consideration. Also, I don't see a reason to maintain SSBN when we have ICBMs available. The silos and other bunkers will easily help in avoiding get hit by enemy strike. Also, with advanced radars, the strike will be detected a few minutes ahead and counter strike can be readied. The need for SSBN itself is flawed.

If you ask me, the Arihant itself is the SSN and India is lying about it being a SSBN.

Agreed. Our SSBNs don't have to be as big as the Ohio class or the Vanguards. We can make do with a 12000 tonne boat with 12 K-4s. And no, they won't be armed with Agnis.

Arihant is neither an SSN nor is it an SSBN. Its primarily a Tech Demonstrator; a proof of concept meant to act as a stand-in for the IN to develop doctrines and train crews. Arighat and beyond are the subs that are actually our deterrent. And no one knows just how many nuclear subs we have in operation. @sayareakd sir speculated about it. He has a better idea than me. But it doesn't look like just 3.

 

[sayareakd]

Lawyer never speculate......................

 

[Babloo Singh]

Lawyer never speculate......................

They Lie
#Just Joking :biggrin2:

 

[tharun]

End of the Feb............

March First Week...

April First week

 

[sayareakd]

Stop posting pic of exact location. Pic of sub will do, only if something of interest is visible. Lets not get too much attention. Let them keep doing their job.