Indian nuclear submarines

[sayareakd]

which part is this front or back ?

looks like some other submarine.

 

[arkem8]

which part is this front or back ?

looks like some other submarine.

That bro, is NOT an Arihant Class SSBN, but a Royal Navy Trafalgar Class

Refer Google: https://www.google.co.in/search?saf...A&biw=1295&bih=654&sei=oQMGUtPjJMLYrQf7k4GADA

 

[Dinesh_Kumar]

pic not found in above link, can u pls share link for that ...............thanks bro....

That bro, is NOT an Arihant Class SSBN, but a Royal Navy Trafalgar Class[/url]

 

[Dinesh_Kumar]

OK got it, courtesy Nachiket in BR forums - USS Key West.

http://harpgamer.com/harpforum/index.ph ... sw-part-1/

pic not found in above link, can u pls share link for that ...............thanks bro....

 

[Abhijeet Dey]

India should build Typhoon class nuclear submarine (world's biggest SSBN) in the future. :sarc:

 

[nirranj]

India should build Typhoon class nuclear submarine (world's biggest SSBN) in the future. :sarc:

Needs to build a large SSBN like the typhoon class... Correct??

 

[Daredevil]

Congratulations to the Indian Scientist working on ATV.

According to Sandeep Unnithan of India TV, two more ATVs are at an advanced stage of construction in Vizag & Hazira. The second ATV is named 'Aridaman'

Sections of a second submarine, to be named Aridaman are already at an advanced stage of outfitting at the Ship Building Centre (SBC) in Vizag. Sources indicate the submarine could be launched by next year. Sections of a third submarine are also under construction at the Larsen & Toubro's Hazira facility. The three SSBNs have been under construction under a secret navy-DRDO-Bhabha Atomic Research Centre (BARC) project called the 'Advanced Technology Vessel' (ATV) project. India's strategic plans call for a fleet of five nuclear powered attack submarines (SSN) and five ballis


Read more at: INS Arihant reactor goes critical, submarine to start sea trials | Watch activation video : North, News - India Today

 

[sayareakd]

India should build Typhoon class nuclear submarine (world's biggest SSBN) in the future. :sarc:

You see such type of projects open door to make bigget projects.

 

[bose]

Can anyone share any specification or information on the next bigger SSBN being planned after complesion of current 3 Arihant class? Is there any on going projects to increase the Nuclear power plant from current 83 MW ?

 

[Decklander]

Can anyone share any specification or information on the next bigger SSBN being planned after complesion of current 3 Arihant class? Is there any on going projects to increase the Nuclear power plant from current 83 MW ?

The next sub will be a bigger hunter-killer class sub. A more powerfull reactor of 150-160MW capacity is under test which will go into this bigger sub and is likely to be ready by 2018-2020. Two of these reactors might also go onboard IAC-2. IN will eventually have a fleet of 13-15 nukes by 2025. We might see one nuke being launched every year from 2014 onwards.

 

[bose]

The next sub will be a bigger hunter-killer class sub. A more powerfull reactor of 150-160MW capacity is under test which will go into this bigger sub and is likely to be ready by 2018-2020. Two of these reactors might also go onboard IAC-2. IN will eventually have a fleet of 13-15 nukes by 2025. We might see one nuke being launched every year from 2014 onwards.

There is a speculation that it will be around 8000T class with 533 & 600 mm torpedo tubes. It remain to be seen how far it can go beyond 300 meters and its submerged speed will be very inportant...

 

[Growup]

INS Arihant, a 6000 ton SSBN has gone critical and it is a great news for all South Asians.Now India has a third leg in the form of sea based deterent.Now i am sure the second and third SSBN's can be produced much faster

 

[Decklander]

INS Arihant, a 6000 ton SSBN has gone critical and it is a great news for all South Asians.Now India has a third leg in the form of sea based deterent.Now i am sure the second and third SSBN's can be produced much faster

It always takes time to operationalise the first ship of a new design. In case of Arihant, it is a whole new weapon system and completely new tech which is being inducted. The lessons learnt from it will be applied to the followon of this class and their induction will be much faster.
IN has reqts for at least 8 Akula class subs which will operate with three CBGs and also act as defenders for the Arihant class during patrol to provide safety from other hunter-killer subs just the way Typhoon class is protected by Akulas.
IMHO there will be 6 Arihant class and 8 followon subs based on Akula design.
BTW, many members here have called Arihant sub standard or belonging to old generation. Let me make it very clear, Arihant is the most silent sub of its class anywhr in the world with some cutting edge tech found in the latest subs of the world. It has quadrapule rubber tiles lining to absorb the noise signature and some very innovative ways to reduce vibrations and noise of steam turbines.
It has the same DRDO/NPOL developed SONAR which has been hailed as the best in the world.
http://articles.timesofindia.indiat...uram/27187173_1_submarines-sonars-indian-navy

INS Arihant makes NPOL scientists proud

 

[sayareakd]

It always takes time to operationalise the first ship of a new design. In case of Arihant, it is a whole new weapon system and completely new tech which is being inducted. The lessons learnt from it will be applied to the followon of this class and their induction will be much faster.
IN has reqts for at least 8 Akula class subs which will operate with three CBGs and also act as defenders for the Arihant class during patrol to provide safety from other hunter-killer subs just the way Typhoon class is protected by Akulas.
IMHO there will be 6 Arihant class and 8 followon subs based on Akula design.
BTW, many members here have called Arihant sub standard or belonging to old generation. Let me make it very clear, Arihant is the most silent sub of its class anywhr in the world with some cutting edge tech found in the latest subs of the world. It has quadrapule rubber tiles lining to absorb the noise signature and some very innovative ways to reduce vibrations and noise of steam turbines.
It has the same DRDO/NPOL developed SONAR which has been hailed as the best in the world.
Naval lab leads quiet revolution on sonars - Times Of India

INS Arihant makes NPOL scientists proud

DL you forget to add double hull.

 

[sayareakd]

taken long time back by someone in other forum from secret location and this site no longer has the hull rings, in case someone want to search.

in case you are wondering what it is

This image is available on two other forums, if Mods want they can delete the image.

 

[Decklander]

DL you forget to add double hull.

I did not want to say it in so many words so used,"Quadrapule anechoic tiles" as lining for the sub to suppress its noise signature.

 

[Decklander]

taken long time back by someone in other forum from secret location and this site no longer has the hull rings, in case someone want to search.

in case you are wondering what it is

This image is available on two other forums, if Mods want they can delete the image.

Somebody is extremely keen to know how far are we w.r.t other subs and they have been keeping tabs. Each of these circles have a fixed length so based on the numbers built, you can make out how far down we are with construction of the sub hull.

 

[sayareakd]

Somebody is extremely keen to know how far are we w.r.t other subs and they have been keeping tabs. Each of these circles have a fixed length so based on the numbers built, you can make out how far down we are with construction of the sub hull.

Those in the business knows what others are doing. BTW if you look at the site, you will know that they are keep outside for purpose (to let the persons interested know what we are doing), as the site has huge sheds.

 

[Decklander]

Those in the business knows what others are doing. BTW if you look at the site, you will know that they are keep outside for purpose (to let the persons interested know what we are doing), as the site has huge sheds.

I agree to some extent with your POV. We have a saying in Haryana,"Khayeh dhaishare, haggay paanch share",. I.E eat 2.5kgs and shit 5 kgs. Yes this is done to scare the enemy also as a way of deciet and camouflage.

 

[sayareakd]

'Submarine reactor functioning well, to be shut down for analysis'
Chennai, Aug 10, 2013 (IANS)

India's first indigenously-designed and built reactor for a submarine - INS Arihant - is functioning well but will be shut down sometime later to study reports of its functioning, top atomic energy establishment officials said.

According to the officials, the reactor for a second nuclear submarine has also been delivered to the Navy.

"The reactor in INS Arihant is functioning well. It will be shut down later to study the reports generated," Atomic Energy Commission (AEC) chairman R.K. Sinha told IANS over phone Saturday.

Speaking to IANS over phone, Bhabha Atomic Research Centre director Sekhar Basu said: "After a reactor goes critical (beginning of the nuclear fission process), it is shut down to check the reports. Then the reactor physics experiments will be done. Unlike land based power reactors, shutting down and restarting a submarine reactor is not a big problem."

The reactor on board INS Arihant was activated Friday night and its successful functioning was termed by Prime Minister Manmohan Singh as a "giant stride" in the progress of the country's indigenous capabilities.

The officials also lauded the scientists' achievement.

"It is a great moment for all of us. It is a great technological achievement for our scientists in designing and building the reactor," said Sinha, who is also secretary of the department of atomic energy.

"The design was unique as compared to a land-based reactor. The reactor was designed and manufactured in India," he added.

The submarine reactor was developed from a land-based prototype located in Kalpakkam, around 70km from here.

The scientists' team was given the mandate to develop a land-based prototype power pack for a submarine and development and construction of a nuclear steam generating system for the sea-going version.

There is a sea of difference between designing a nuclear power pack to propel a submarine and a land-based atomic power station. While a land-based atomic power plant gets support from the grid and others, a nuclear power pack in a submarine does not have such fallback systems.

The 82.5 MW nuclear reactor for submarine has been designed at Kalpakkam by PRP Centre - PRP originally stood for Plutonium Reprocessing Project - under the BARC.
Prior to his current position, Basu was heading the PRP.

According to Indian nuclear scientists the major challenges in designing the reactor for INS Arihant were miniaturisation of the land-based plant to fit into the confined space of a submarine and also making it lightweight but strong enough to endure the shock due to depth discharge.

The reactor, while withstanding the pitch and roll of a submarine should also be capable of accelerating and decelerating at a quick pace - unlike a land-based power plant which would ramp up speed in a gradual manner.

The reactor designed for a long fuelling cycle time, would also have to be capable of remaining under water for an extended period, the sortie time being essentially dictated by the endurance of the crew.

The land-based version kept at Kalpakkam was conceived and built as a technology demonstrator for the compact pressurised water reactor with a load following capability.
Also known as 'half boat', the entire propulsion plant with primary, secondary, electrical and propulsion systems along with its integrated control was packed in the aft end of the land-based submarine hull designed and built specifically for this purpose.

While in sea the reactor supplies super-heated steam to the propulsion plant to run the submarine, at the PRP Centre, the propulsion power is absorbed in the dynamometer which in turn is cooled by sea water.

'Submarine reactor functioning well, to be shut down for analysis'