INS Chakra (Akula class) Submarine : Pictures & Discussions

T

Tarun

Brief Intro:

INS_Chakra.jpg
​
INS Chakra is a 8,140-tonne (8,010-long-ton) Project 971 (or Project 518; NATO: Akula-class submarine) nuclear-powered attack submarine. The construction of the Nerpa submarine was started in 1993, but was then suspended due to lack of funding. The Indian Navy sponsored the building and sea trials of the submarine provided it was given to the Indian Navy on lease for 10 years. It was launched as K-152 Nerpa in October 2008 and entered service with the Russian Navy in late 2009. The submarine was leased to the Indian Navy in 2011 after extensive trials, and was formally commissioned into service as INS Chakra II at a ceremony in Visakhapatnam on 4 April 2012. The INS Chakra joined the Eastern Naval Command at Visakhapatnam.
 
  • Like
Reactions: Aditya10r and Aashish
https://twitter.com/x/status/936533533538975746

__________________________________________________________________________________________________________________________

Navy chief admits damage to INS Chakra
Saturday, December 02, 2017
By: Business Standard

For the first time, the navy has confirmed that INS Vishal, its second indigenous aircraft carrier that will be built in the 2020s, will be a conventionally-powered vessel, not a nuclear powered warship, as earlier envisaged.

Indian Navy chief Admiral Sunil Lanba told a press conference on Friday the navy is going in for a “65,000-tonne, two-deck, CATOBAR (catapult take off but arrested landing), conventionally powered” carrier. It would incorporate the latest “EMALS (electro-magnetic aircraft launch system) and AAG (advanced arrester gear)” developed by US firm General Atomics for launching and recovering aircraft.


The chief of naval staff (CNS) also confirmed the navy’s ongoing acquisition of 57 multi-role carrier-borne fighters (MRCBF) was meant for both indigenous aircraft carriers — INS Vikrant, which would be commissioned in end-2020, and INS Vishal which would take another decade.

With the Naval Tejas fighter unsuitable for deployment, the MRCBF procurement is regarded as essential by the navy, said Lanba.

Providing an update on the MRCBF procurement, Lanba said the navy’s Request for Information (RFI) that had been floated earlier this year had received four responses. Sources say these are from Boeing for its F/A-18E/F, Dassault for the Rafale Marine, Saab for its Gripen Maritime and from Russia for an updated MiG-29K, which the navy is already flying.

“We will take the [MRCBF acquisition] process forward. But the middle of next year, we should be able to float the RFP (request for proposals, as the tender is called)”.


Submarines

The CNS confirmed worrying rumours about underwater damage to INS Chakra (pictured), the nuclear attack submarines that the navy had taken on a 10-year lease from Russia in 2012. “The Chakra has suffered damage to her sonar dome. Two [hull] panels have been dislodged. A Board of Inquiry has been constituted to find out the cause. A joint team of the Indian Navy and the Russian side has assessed the damage. We have ordered the panel at the soonest.”

The chief dismissed reports published last month in a Russian newsmagazine that US Navy officials had been permitted to visit the Chakra during their recent visit to India. “No American person has seen the submarine from nearby,” said Lanba tersely.

In good news for the navy’s depleted submarine fleet, Lanba revealed that Project 75I — which involves building six conventional attack submarines with “air independent propulsion” (AIP) — has made progress. “We have a 30-year plan for a total force level of 24 submarines. Project 75I is the first project being progressed under the Strategic Partner (SP) model. We have floated an RFI for identifying OEMs (original equipment manufacturers). Responses have been received from four OEMs and they are under examination. A committee has been constituted for identifying the Indian strategic partner.

Pressed to identify the four OEMs who have expressed interest in Project 75I, Lanba named German submarine maker, ThyssenKrupp Marine Systems, French shipmaker Naval Group (formerly DCNS), Kockums of Sweden and Russian armament supplier, Rosoboronexport.


Indigenous SSN

The navy chief also acknowledged an indigenous project to build six nuclear attack submarines, termed SSNs (the acronym for “sub-surface nuclear”). “It has kicked off and I will leave it at that. It is a classified project. The process has started,” said Lanba.

The navy chief also revealed that India and US had “operationalised” an agreement for “reciprocal logistic support”, termed the Logistics Exchange Memorandum of Agreement (LEMOA), signed in August 2016. “Our ships are taking fuel from US tankers during anti-piracy patrols [near the Horn of Africa]. This began about three months ago,” he said.

Navy chief admits damage to INS Chakra
 
Last edited by a moderator:
  • Like
Reactions: Aditya10r, GuardianRED and Aashish
Tarun said:
https://twitter.com/x/status/936533533538975746

__________________________________________________________________________________________________________________________

Navy chief admits damage to INS Chakra
Saturday, December 02, 2017
By: Business Standard

For the first time, the navy has confirmed that INS Vishal, its second indigenous aircraft carrier that will be built in the 2020s, will be a conventionally-powered vessel, not a nuclear powered warship, as earlier envisaged.

Indian Navy chief Admiral Sunil Lanba told a press conference on Friday the navy is going in for a “65,000-tonne, two-deck, CATOBAR (catapult take off but arrested landing), conventionally powered” carrier. It would incorporate the latest “EMALS (electro-magnetic aircraft launch system) and AAG (advanced arrester gear)” developed by US firm General Atomics for launching and recovering aircraft.


The chief of naval staff (CNS) also confirmed the navy’s ongoing acquisition of 57 multi-role carrier-borne fighters (MRCBF) was meant for both indigenous aircraft carriers — INS Vikrant, which would be commissioned in end-2020, and INS Vishal which would take another decade.

With the Naval Tejas fighter unsuitable for deployment, the MRCBF procurement is regarded as essential by the navy, said Lanba.

Providing an update on the MRCBF procurement, Lanba said the navy’s Request for Information (RFI) that had been floated earlier this year had received four responses. Sources say these are from Boeing for its F/A-18E/F, Dassault for the Rafale Marine, Saab for its Gripen Maritime and from Russia for an updated MiG-29K, which the navy is already flying.

“We will take the [MRCBF acquisition] process forward. But the middle of next year, we should be able to float the RFP (request for proposals, as the tender is called)”.


Submarines

The CNS confirmed worrying rumours about underwater damage to INS Chakra (pictured), the nuclear attack submarines that the navy had taken on a 10-year lease from Russia in 2012. “The Chakra has suffered damage to her sonar dome. Two [hull] panels have been dislodged. A Board of Inquiry has been constituted to find out the cause. A joint team of the Indian Navy and the Russian side has assessed the damage. We have ordered the panel at the soonest.”

The chief dismissed reports published last month in a Russian newsmagazine that US Navy officials had been permitted to visit the Chakra during their recent visit to India. “No American person has seen the submarine from nearby,” said Lanba tersely.

In good news for the navy’s depleted submarine fleet, Lanba revealed that Project 75I — which involves building six conventional attack submarines with “air independent propulsion” (AIP) — has made progress. “We have a 30-year plan for a total force level of 24 submarines. Project 75I is the first project being progressed under the Strategic Partner (SP) model. We have floated an RFI for identifying OEMs (original equipment manufacturers). Responses have been received from four OEMs and they are under examination. A committee has been constituted for identifying the Indian strategic partner.

Pressed to identify the four OEMs who have expressed interest in Project 75I, Lanba named German submarine maker, ThyssenKrupp Marine Systems, French shipmaker Naval Group (formerly DCNS), Kockums of Sweden and Russian armament supplier, Rosoboronexport.


Indigenous SSN

The navy chief also acknowledged an indigenous project to build six nuclear attack submarines, termed SSNs (the acronym for “sub-surface nuclear”). “It has kicked off and I will leave it at that. It is a classified project. The process has started,” said Lanba.

The navy chief also revealed that India and US had “operationalised” an agreement for “reciprocal logistic support”, termed the Logistics Exchange Memorandum of Agreement (LEMOA), signed in August 2016. “Our ships are taking fuel from US tankers during anti-piracy patrols [near the Horn of Africa]. This began about three months ago,” he said.

Navy chief admits damage to INS Chakra
Click to expand...
Could this mean that it is damage only the acoustic absorbing tiles - which is not a big deal? and can be repaired
 
Tarun said:
https://twitter.com/x/status/936533533538975746

__________________________________________________________________________________________________________________________

Navy chief admits damage to INS Chakra
Saturday, December 02, 2017
By: Business Standard

For the first time, the navy has confirmed that INS Vishal, its second indigenous aircraft carrier that will be built in the 2020s, will be a conventionally-powered vessel, not a nuclear powered warship, as earlier envisaged.

Indian Navy chief Admiral Sunil Lanba told a press conference on Friday the navy is going in for a “65,000-tonne, two-deck, CATOBAR (catapult take off but arrested landing), conventionally powered” carrier. It would incorporate the latest “EMALS (electro-magnetic aircraft launch system) and AAG (advanced arrester gear)” developed by US firm General Atomics for launching and recovering aircraft.


The chief of naval staff (CNS) also confirmed the navy’s ongoing acquisition of 57 multi-role carrier-borne fighters (MRCBF) was meant for both indigenous aircraft carriers — INS Vikrant, which would be commissioned in end-2020, and INS Vishal which would take another decade.

With the Naval Tejas fighter unsuitable for deployment, the MRCBF procurement is regarded as essential by the navy, said Lanba.

Providing an update on the MRCBF procurement, Lanba said the navy’s Request for Information (RFI) that had been floated earlier this year had received four responses. Sources say these are from Boeing for its F/A-18E/F, Dassault for the Rafale Marine, Saab for its Gripen Maritime and from Russia for an updated MiG-29K, which the navy is already flying.

“We will take the [MRCBF acquisition] process forward. But the middle of next year, we should be able to float the RFP (request for proposals, as the tender is called)”.


Submarines

The CNS confirmed worrying rumours about underwater damage to INS Chakra (pictured), the nuclear attack submarines that the navy had taken on a 10-year lease from Russia in 2012. “The Chakra has suffered damage to her sonar dome. Two [hull] panels have been dislodged. A Board of Inquiry has been constituted to find out the cause. A joint team of the Indian Navy and the Russian side has assessed the damage. We have ordered the panel at the soonest.”

The chief dismissed reports published last month in a Russian newsmagazine that US Navy officials had been permitted to visit the Chakra during their recent visit to India. “No American person has seen the submarine from nearby,” said Lanba tersely.

In good news for the navy’s depleted submarine fleet, Lanba revealed that Project 75I — which involves building six conventional attack submarines with “air independent propulsion” (AIP) — has made progress. “We have a 30-year plan for a total force level of 24 submarines. Project 75I is the first project being progressed under the Strategic Partner (SP) model. We have floated an RFI for identifying OEMs (original equipment manufacturers). Responses have been received from four OEMs and they are under examination. A committee has been constituted for identifying the Indian strategic partner.

Pressed to identify the four OEMs who have expressed interest in Project 75I, Lanba named German submarine maker, ThyssenKrupp Marine Systems, French shipmaker Naval Group (formerly DCNS), Kockums of Sweden and Russian armament supplier, Rosoboronexport.


Indigenous SSN

The navy chief also acknowledged an indigenous project to build six nuclear attack submarines, termed SSNs (the acronym for “sub-surface nuclear”). “It has kicked off and I will leave it at that. It is a classified project. The process has started,” said Lanba.

The navy chief also revealed that India and US had “operationalised” an agreement for “reciprocal logistic support”, termed the Logistics Exchange Memorandum of Agreement (LEMOA), signed in August 2016. “Our ships are taking fuel from US tankers during anti-piracy patrols [near the Horn of Africa]. This began about three months ago,” he said.

Navy chief admits damage to INS Chakra
Click to expand...
What,24 submarines in 2047...

Seriously that low.

________________________________________
 
Aditya10r said:
What,24 submarines in 2047...

Seriously that low.

________________________________________
Click to expand...
This is what I call a Lower grade journalism ...

induction and retirement is a continuous process while these journos count the retirements only..

anyways, by 2035 we will have 36 subs
24 SSK
6 SSN
6 SSBN
 
  • Like
Reactions: GuardianRED and Aditya10r
GuardianRED said:
Could this mean that it is damage only the acousticabsorbing tiles - which is not a big deal? and can be repaired
Click to expand...
=>
Tarun said:
“The Chakra has suffered damage to her sonar dome. Two [hull] panels have been dislodged. A Board of Inquiry has been constituted to find out the cause. A joint team of the Indian Navy and the Russian side has assessed the damage. We have ordered the panel at the soonest.”
Click to expand...

Not a serious issue and damaged panels can be replace, only matter of concern will be the cost and refit time that can be elaborated only after investigation.
 
EqLz1gVXMAcAq0u


Project 971 Shchuka-/Akula class SSN Leopard (K-328) rolled out from the hall of the Zvezdochka Shipyard after modernization on 25/12/2020.

K-154 is being handled by Nerpa for overhaul (no modernisation) should stay there between 2020 and 2023.
K-461 is being modernised now at Zvezdochka.
K-391 is the next one going for modernisation at Zvezdochka along with the K-295.
K-157 Vepr modernization completed in 2020

Source
 

The Main Headquarters of the Russian Navy proposed to decommission and recycle Project 971I/Akula-class nuclear-powered attack submarine "Nerpa" (K-152).​

In April 2020, a high-pressure air cylinder exploded on board the submarine, resulting in damage to both of its buildings​


MOSCOW, November 16th. /TASS/. The main headquarters of the Russian Navy proposed to utilize the emergency nuclear submarine (APL) "Nerpa" of project 971U "Shchuk-B", which, being in leasing as part of the Indian Navy, was called "Chakra-2". This was reported by TASS in the military-industrial complex.

"The Navy’s chief akimat, for financial reasons, considers it inappropriate to repair and modernize Nerpa, located at one of the shipbuilding plants near Vladivostok, and suggests utilizing it," the agency’s interlocutor said.

In early summer 2021, Chakra-2, accompanied by ships of the Pacific Fleet, made a transition in a surface position from India to Vladivostok.

According to reports, before that, in April 2020, a high-pressure air cylinder exploded on board the submarine, resulting in damage to both of its cases. Radio-electronic weapons and sonar equipment were also affected. After which the submarine was returned from the lease ahead of schedule. The agency’s interlocutor noted that after the emergency, Indian specialists repaired both APL buildings, after which she returned to Russia.


APL "Nerpa" was leased to the Indian Navy in April 2012 for a period of 10 years. The value of the contract amounted to about $ 2 billion.

tass.ru

Главкомат ВМФ предложил утилизовать аварийную АПЛ "Нерпа"

В апреле 2020 года на борту субмарины произошел взрыв баллона воздуха высокого давления, в результате чего повреждения получили оба ее корпуса
tass.ru tass.ru
 
Tweet posted in wrong thread. It's not Akula class nuclear powered submarine. Moderators please move the above posts.
 
Chakra III.

This is the Bratsk of the 971 Shchuka-B Akula class. This submarine, which has been in reserve since... 1998, first happily rotted, sorry: rusted on the PD-71 floating dock in Bolshoy Kamen for 6 years before being transferred to Zvezdochka in Severodvinsk in 2014. The announced delivery date is 2026... unless the work lasts as long as for the K-328 Leopard, which has been in "modernization" at the same shipyard since... 2011. At the end of the work, the "Chakra III" should be capable of the Brahmos missile while submerged.

Class 971 Shchuka-B Akula Bratsk [Chakra III] history​

[Soumarsov.fr]

Launched: 04/14/89
Commissioned: 12/29/89

Mod 12 Version

1984 March 3 entered the naval list as a large nuclear submarine (ABPL)

1989 June 5 first reactor divergence.

June 28 reaches Bolshoy Kamen (ZSO Vostok) for completion and testing

August December builder and official trials in the Sea of Japan

1990 January 13 1st colors ceremony

February 28 assigned to the 45th diviziya of the 2nd submarine flotilla of the Pacific Fleet (Krasheninnikova)

acoustic tests show that it is then the quietest submarine in the Pacific Fleet

December 27 reaches its base port at Krasheninnikova

1991 September 9 declared operationally available

September 10 - November 25 1st operational patrol. Obtains 12 contacts on foreign submarines. On track one for 380 hours, best Soviet performance at the time.

1992 April 28 reclassified AKrPL (nuclear submarine cruiser)

June 1 - September 30 permanent operational dockside at the base port. Classified remarkable. During the period made several trips to sea for training other submarines and weapons tests.

during the year made 17 torpedo launches with a new homing device. The homing device was put into operational service following these tests.

1993 April 13 renamed KIT (Whale)

April 28 - June 30 permanent operational dockside.

1993 September 30 - December 31 permanent operational dockside.

December 2 launch of two RK-55 Granat missiles in a single salvo on different targets, in very bad weather conditions. First for the Russian Navy.

1994 April 1st withdrawn from operational service

1996 February-1997 April provides training and training for the K-152 Nerpa

1997 August during a training sortie runs a US SSN Los Angeles for 4 hours

10 September renamed BRATSK

1998 placed on standby for IPER due to exhaustion of nuclear fuel

2003 placed in reserve of the 3rd category

2007 given to be attached to the 10th division of the 16th nuclear submarine squadron of the Pacific fleet, in IPER

2012 November 21 still in IPER!

2013 March 29 has been on the floating dock PD-71 for 6 years, with a crew reduced to 37 members. Despite the 250 million rubles paid for its maintenance, the work has not progressed an inch. At this date, has spent only 34.5% of its time in operational service (5566 days of unavailability out of 8491 days in the Russian Navy)

10 September announcement of its transfer to Sevmash for the start of modernization in 2014. The transfer would be carried out by dock ship via the Northern Sea Route in the company of the Samara

2014 1 March work should begin in the summer of 2014

10 June after a visit by Zvezdochka specialists announced as due to arrive at the shipyard at the end of 2014 for an IPER / modernization until 2017

11 June transfer to Zvezdochka announced for September 2014

14 August transfer to Zvezdochka in September 2014 aboard the Transshelf via the Northern Sea Route

29 September unloaded by the Transshelf ship at the Zvezdochka shipyard

2022 January the modification is abandoned

2024 17 February reportedly being modified with Brahmos missile and handed over to India in 2026

Military unit 95018 by order 0331 of the Fleet CEC dated 10/9/1997
3 operational missions and 3 operational permanences known
Served 23.2 years as 971 class.

The name is taken over by the 8th class 885M.

/deepl
 
Amarante said:
Chakra III.

This is the Bratsk of the 971 Shchuka-B Akula class. This submarine, which has been in reserve since... 1998, first happily rotted, sorry: rusted on the PD-71 floating dock in Bolshoy Kamen for 6 years before being transferred to Zvezdochka in Severodvinsk in 2014. The announced delivery date is 2026... unless the work lasts as long as for the K-328 Leopard, which has been in "modernization" at the same shipyard since... 2011. At the end of the work, the "Chakra III" should be capable of the Brahmos missile while submerged.

Class 971 Shchuka-B Akula Bratsk [Chakra III] history​

[Soumarsov.fr]

Launched: 04/14/89
Commissioned: 12/29/89

Mod 12 Version

1984 March 3 entered the naval list as a large nuclear submarine (ABPL)

1989 June 5 first reactor divergence.

June 28 reaches Bolshoy Kamen (ZSO Vostok) for completion and testing

August December builder and official trials in the Sea of Japan

1990 January 13 1st colors ceremony

February 28 assigned to the 45th diviziya of the 2nd submarine flotilla of the Pacific Fleet (Krasheninnikova)

acoustic tests show that it is then the quietest submarine in the Pacific Fleet

December 27 reaches its base port at Krasheninnikova

1991 September 9 declared operationally available

September 10 - November 25 1st operational patrol. Obtains 12 contacts on foreign submarines. On track one for 380 hours, best Soviet performance at the time.

1992 April 28 reclassified AKrPL (nuclear submarine cruiser)

June 1 - September 30 permanent operational dockside at the base port. Classified remarkable. During the period made several trips to sea for training other submarines and weapons tests.

during the year made 17 torpedo launches with a new homing device. The homing device was put into operational service following these tests.

1993 April 13 renamed KIT (Whale)

April 28 - June 30 permanent operational dockside.

1993 September 30 - December 31 permanent operational dockside.

December 2 launch of two RK-55 Granat missiles in a single salvo on different targets, in very bad weather conditions. First for the Russian Navy.

1994 April 1st withdrawn from operational service

1996 February-1997 April provides training and training for the K-152 Nerpa

1997 August during a training sortie runs a US SSN Los Angeles for 4 hours

10 September renamed BRATSK

1998 placed on standby for IPER due to exhaustion of nuclear fuel

2003 placed in reserve of the 3rd category

2007 given to be attached to the 10th division of the 16th nuclear submarine squadron of the Pacific fleet, in IPER

2012 November 21 still in IPER!

2013 March 29 has been on the floating dock PD-71 for 6 years, with a crew reduced to 37 members. Despite the 250 million rubles paid for its maintenance, the work has not progressed an inch. At this date, has spent only 34.5% of its time in operational service (5566 days of unavailability out of 8491 days in the Russian Navy)

10 September announcement of its transfer to Sevmash for the start of modernization in 2014. The transfer would be carried out by dock ship via the Northern Sea Route in the company of the Samara

2014 1 March work should begin in the summer of 2014

10 June after a visit by Zvezdochka specialists announced as due to arrive at the shipyard at the end of 2014 for an IPER / modernization until 2017

11 June transfer to Zvezdochka announced for September 2014

14 August transfer to Zvezdochka in September 2014 aboard the Transshelf via the Northern Sea Route

29 September unloaded by the Transshelf ship at the Zvezdochka shipyard

2022 January the modification is abandoned

2024 17 February reportedly being modified with Brahmos missile and handed over to India in 2026

Military unit 95018 by order 0331 of the Fleet CEC dated 10/9/1997
3 operational missions and 3 operational permanences known
Served 23.2 years as 971 class.

The name is taken over by the 8th class 885M.

/deepl
Click to expand...
Dont make any sense. how will you put Brahmos in an akula?. Its a huge missile cant be fired from a tube.
 
  • Like
Reactions: Ashwin
Tatvamasi said:
Dont make any sense. how will you put Brahmos in an akula?. Its a huge missile cant be fired from a tube.
Click to expand...
Key features of BRAHMOS-NG would be:
Reduced Dimension & Weight for widespread usage
Advanced next generation stealth
Greater effectiveness against ECCM
Higher versatility in underwater combat applications
Launch readiness from Torpedo tube and vertical orientation
BRAHMOS-NG - BrahMos.com

Do you contradict just to please yourself?
 
  • Like
Reactions: Rajput Lion
Amarante said:
Key features of BRAHMOS-NG would be:
Reduced Dimension & Weight for widespread usage
Advanced next generation stealth
Greater effectiveness against ECCM
Higher versatility in underwater combat applications
Launch readiness from Torpedo tube and vertical orientation
BRAHMOS-NG - BrahMos.com

Do you contradict just to please yourself?
Click to expand...

Where did i contradict? NG version is half the weight and dimensions.

BRAHMOS-NG does not exist; it is only on paper. The current development is only towards the air-launched version, which is still 2-3 days away from the first test.
 
You must log in or register to reply here.
Top Bottom