Indian Nuclear Attack Submarine (Project 77) - Updates & Discussions

Then what could it be? The N Reactor?

Some possible areas of cooperation:

1) Sonar systems (spherical main array, flank array and towed array)
2) Photonics masts
3) Single-hull construction techniques (so far we are used to Russian double-hull techniques)

The French SSN program uses LEU reactors, Indian program uses HEU. So no, there cannot be any cooperation in terms of the reactor. Not to mention NPT obligations.
 
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1) Sonar systems (spherical main array, flank array and towed array)
2) Photonics masts
3) Single-hull construction techniques (so far we are used to Russian double-hull techniques)

Sonar? a crow jewel..... Thales is the world champion.... No way.
Photonic mast ? Why not.
SIngle hull techniques ? Probably. You already used that for Scorpene.

The Barracuda is the smaller of the new SSN (smaller than russian, US and english products), so the affordable one. And some techniques are the same than for Scorpene. It is why India has a look at.
 
Sonar? a crow jewel..... Thales is the world champion.... No way.

The ones for India would obviously be somewhat downgraded compared to original - but I'm pretty confident the sonar is a crucial element of cooperation with regard to SSN program.

The Barracuda is the smaller of the new SSN (smaller than russian, US and english products), so the affordable one. And some techniques are the same than for Scorpene. It is why India has a look at.

Current indications are that Indian SSN will be approx 5,000 tons, so pretty similar in size to Barracuda.
 
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Something after a long while :

Work begins on India’s next gen nuclear-powered submarines

The INS Arihant and Chakra – on lease from Russia - are the two nuclear-powered submarines currently in service with the Navy.

By Manu Pubby, ET Bureau | Updated: Jun 24, 2019, 11.43 AM IST

Work has started on the Rs 1 lakh crore project to produce next generation nuclear-powered submarines for the Indian Navy, with a defence public sector unit working on a special alloy for the hull. A scale model is likely to be tested soon as part of the design process.

The project to build advanced nuclear submarines designed for long range underwater patrols and armed with conventional weapons has been granted over Rs 100 crore seed money by the government for the initial phase with officials predicting a development period that is expected to stretch beyond 2025. The plan to build six nuclear-powered attack submarines (SSNs) kicked off in 2015 when the NDA government gave a go ahead to a long-pending project for the Indian Navy. Then Navy Chief Admiral Sunil Lanba confirmed in 2017 that the project is underway.

Sources said considerable progress has been made in the design phase of the new boats with a scale model likely to be fabricated and tested shortly. These scale model tests will be critical to check development, accuracy and quick success would mean that the Directorate of Naval Design (Submarine Design Group) is on the right track.

Defence Public Sector Unit Mishra Dhatu Nigam (MIDHANI) is also working on indigenising a new material for the hull that will be designed to dive to depths much beyond the Arihant class of indigenous nuclear-powered and armed submarines. Details of the new, more powerful nuclear reactor, which is being designed for the programme are not yet known.

Sources explained that while lessons learnt from the Arihant build are being incorporated, a totally new material will be used for the SSN project given the unique requirements of the Navy for depth and speed.

The INS Arihant and Chakra – on lease from Russia - are the two nuclear-powered submarines currently in service with the Navy. The second of the Arihant class was launched in 2017 and is in advanced stage of completion. The Arihant class is armed with nuclear capable missiles and is critical to India’s second strike capability. ET first reported in March that India and Russia signed a $ 3 billion deal to lease an advanced nuclear attack submarine that will be fitted with indigenous communication systems and sensors. The deal for the submarine – being termed as Chakra III after the first two similar vessels India obtained from Russia – would involve an extensive build programme on mothballed hulls at a Russian shipyard that will be supervised by Indian Navy personnel.

Work begins on India’s next gen nuclear-powered submarines
 
So after 4 years we are building a scaled model.

If you check my previous posts , I had mentioned something about a SSN hull almost 1 year back.
I had also speculated that it was for testing purposes.

What makes you think the news report is upto date , do you thing every detail given by annonymous sources is correct
 
Yes, These subs are going to be bigger and a very detailed hydrodynamic analysis is a must. If it clears it, fabricating the real sub will not be much of a problem.
true but there is also a possibility that russian allowed technical assistance only after recent deal of 3 billion dollar
 
If you check my previous posts , I had mentioned something about a SSN hull almost 1 year back.
I had also speculated that it was for testing purposes.

What makes you think the news report is upto date , do you thing every detail given by annonymous sources is correct
Because
  • DAC approved 60k program in 2015.
  • According to IST it makes sense to reach an initial design testing stage maturity by now.
  • Chatter was about new SSN hull from Arihant production line. Which is impossible. (Keeping it secret, timelines, and funds)
  • The scaled model means it will be so small compared to the original design which can be easily differentiated.
 
The Navy's Most Vital And Secretive Submarine Base Is In... Idaho?!?

There are two known Large Scale Vehicles currently in service at ARD Bayview, although some sources say there are at least ten in inventory. The LSV-1 Kokanee is a 1/4 scale model of the Seawolf Class of American subs, of which three are currently active within the US Navy. She is 90 feet long and ten feet wide and is packed with batteries, generators, computer guidance systems, telemetry recorders and propulsion equipment. Just because the Kokanee is a sub-scale sub does not mean it is a wimp when it comes to speed. She packs 3,000hp!

767314634668259877.jpg

The second known Large Scale Vehicle is the $50M pride and joy of the base known as LSV-2 Cutthroat. She is larger than Kokanee, more closely resembles the Virginia Class of US fast attack submarines, and is more advanced in every respect. In fact she is the largest unmanned submarine in the world at 110 feet long. She was designed to be modular in nature and large parts of her hull can be switched in and out for various testing purposes with relative ease. She is driven by a state-of-the-art permanent-magnet, radial-gap electric propulsion motor that can put out up to 6,000hp.
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Project 941 Akula (NATO Typhoon)
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1/10 Scale Model
A 1/10 scale fully automated model was built at the Admiralty Shipyard in Leningrad. It tested the feasibility of such an unorthodox design.

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Because
  • DAC approved 60k program in 2015.
  • According to IST it makes sense to reach an initial design testing stage maturity by now.
  • Chatter was about new SSN hull from Arihant production line. Which is impossible. (Keeping it secret, timelines, and funds)
  • The scaled model means it will be so small compared to the original design which can be easily differentiated.

I don't know the details , my source mentioned that , he said nothing explicitly.

The hull he alluded to was being transferred to another facility and he hinted that in not so many words that it was related to the SSN programme.

Personally I don't read much into Indian media reports and their annonymous sources, be it on any issue.

Also let me add something more , NSTL is involved in a big way regarding the propulsion , we might be in for some surprise if things go as planned .

Also I don't guarantee authenticity of my posts. It's take it or leave it . I have nothing to gain either way.
 
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