IN Scorpene Submarines - News & Discussions

Karthi

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Fabrication of sections scorpene.jpg


Fabrication of sections scorpene

Installation of torpedo  tubes Scorpene.jpg



Installation of torpedo tubes Scorpene.


Machinery cradle embarkation.jpg


Machinery cradle embarkation.



Lifting of joined sections scorpene.jpg


Lifting of joined sections scorpene.


Lowering of sections on pontoon.jpg


Lowering of sections on pontoon.

Propeller installation.jpg


Propeller installation.
 

BON PLAN

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View attachment 45649

Fabrication of sections scorpene

View attachment 45650


Installation of torpedo tubes Scorpene.


View attachment 45651

Machinery cradle embarkation.



View attachment 45652

Lifting of joined sections scorpene.


View attachment 45653

Lowering of sections on pontoon.

View attachment 45654

Propeller installation.
For those who remain afraid about the Scorpene leaks, it is always possible to change of propeller.... from a 5 blades to 7.... that may change everything.
Just in case of....
 

WolfPack86

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Indian Navy Will Get This Powerful Submarine, Can Wreak Havoc Inside The Sea
New Delhi: INS Karanj, the third submarine of the Kalvari class being prepared in India, is expected to join the Navy in four to five months. Karanj was sent for sea tests in 2018 and according to sources these tests have been successful. The fourth submarine INS Vela of the same class will also join the Navy by the end of next year.




The first two submarines of the Kalvari class, Kalvari and Khanderi, have already been inducted into the Navy. A total of 6 submarines of Kalvari class are being manufactured at Mazgaon Dock Limited, Mumbai. This submarine is capable of staying in the sea for 50 days and can travel up to 12,000 km at a time. It has 8 officers and 35 naval operators and can dive up to 350 meters under the sea. The Kalvari class submarine has an undersea speed of 37 km per hour. These include torpedoes to destroy a submarine within the sea or a ship on the ocean surface. In addition, these submarines can also lay landmines in the sea.



Let us tell you that in 1997, the Indian Navy had prepared a big plan to make Submarine fleet powerful. Under this, there was a plan to construct new 24 submarines by 2024, but this plan is still running behind schedule. Kalvari joined the Navy in 2017 as the first submarine under the class ie Project 75. The project is expected to be completed by 2022.
 

BON PLAN

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Any update on the procurement of torpedoes for the Scorpene sub’s?
good question.
The sole weapon so far seems to be the Exocet SM39. And maybe some old german torpedoes, if they are integrated with the weapon system.
 

prateikf

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The French F-21 would be suitable for the Scorpene submarines. Wish a Govt to Govt deal takes place to save time. We can’t have our sub’s without torpedoes for so long.
 

Saichand K

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Yes, from the open sources in the internet, it appears submarine launched torpedos are ready for induction.
Defence Decode was stating in one of his videos that the Indian Navy has received the first tranche of Varunastra torpedoes meant for the Indian Navy's Kilo class, Scorpene class submarines.
 

porky_kicker

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Defence Decode was stating in one of his videos that the Indian Navy has received the first tranche of Varunastra torpedoes meant for the Indian Navy's Kilo class, Scorpene class submarines.
Wrong information

Varunastra is for ship launch only , it cannot be used by submarines.

9530270_6060353ehwtjpega25d74f65375768ef0e1ed413374cd9b_jpeg_jpeg8b801b89237511755790d1f62306...jpeg


DRDO EHWT (Electrical Heavy Weight torpedo) is for launch by submarines

Its a fiber optic wire guided 533mm x 6.4m submarine launched torpedo along with ring laser gyro INS guidance as well as GPS based guidance. Has active , passive and wake homing capabilities . Can be guided both autonomously and through fibre optic wire guidance. Incase of heavy countermeasures it is guided by GPS.

It is meant for use by submarines against hostile submarines and ships

AFAIK development has been completed . Possibly under trials.
 
Last edited:

Karthi

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Wrong information

Varunastra is for ship launch only , it cannot be used by submarines.

View attachment 57370

DRDO EHWT (Electrical Heavy Weight torpedo) is for launch by submarines

Its a fiber optic wire guided 533mm x 6.4m submarine launched torpedo along with ring laser gyro INS guidance as well as GPS based guidance. Has active , passive and wake homing capabilities . Can be guided both autonomously and through fibre optic wire guidance. Incase of heavy countermeasures it is guided by GPS.

It is meant for use by submarines against hostile submarines and ships

AFAIK development has been completed . Possibly under trials.

DRDO chairman S Christopher once said they are working on sub launced Varunastra for Kilo class subs . May be changed the name
 

porky_kicker

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DRDO chairman S Christopher once said they are working on sub launced Varunastra for Kilo class subs . May be changed the name
It is based on technologies used on varunastra . One can say both are almost same but with significant differences .

Eg. It uses the same contra rotating propellers found in varunastra. But then the nose shape is different
8107165_img20170907142537_jpegf1367877b4fd35125e2e2863261f751e.jpeg


7518908_varunastra3_jpeg126e04fcfbb7da727dbd776f7c51e77a.jpeg
 
Last edited:

WolfPack86

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INS Vagir: Indian Navy to get fifth Scorpene-class submarine from Mazagon Dock in six months

Defence public sector undertaking (PSU) Mazagon Dock Shipbuilders (MDSL) will hand over its fifth Scorpene-class submarine to the Indian Navy by the end of this year or early next year, a top company official said. The defence PSU has stepped up the pace of construction and deliveries of submarines and ships over the last couple of years to ensure adherence to the agreed timelines. The first of the six Scorpene-class submarines, INS Kalvari, was launched in 2015 and commissioned into service in late 2017. MDSL is working with French collaborator Naval Group (earlier known as DCNS) on transfer of technology for the submarines under Project 75 (P75) with the deal valued at over Rs 23,000 crore. (This project should not be confused with P75I (Project 75 India), which envisages construction of the long-pending Rs 42,000 crore, six stealth submarines, which will be built by MDSL and L&T.) Sanjeev Singhal, Director (Finance), Mazagon Dock Shipbuilders, said: “In spite of the Covid-19 challenges, we are trying to keep the timelines of whatever we had planned earlier, including the delivery of the fifth submarine sometime by end of this year or early next year. In addition, basin trials of one of the ships are also scheduled before early November.” Since 2017 MDSL has delivered one submarine every year to the Indian Navy. INS Khanderi was launched in 2017 followed by INS Karanj in 2018 and INS Vela in 2019. Due to the Covid-19 disruption, the company suffered a setback of about three months in the development of the fifth submarine, known as INS Vagir. The PSU believes it can complete deliveries of all the contracted submarines by 2022, wLast delivery by 2022ith the last of the six, INS Vagsheer, expected to be launched by then. “In 2021-22 and 2022-23, we should be able to make up for the impact which has been there for FY21,” added Singhal, speaking at an analyst event for the PSU’s initial public offering (IPO). Mazagon Dock Shipbuilders raised Rs 443 crore through a public issue between September 29 and October 1. The company has an order book of Rs 54,500 crore. Scorpene submarines are a class of diesel-electric attack submarines that claim to have stealth features. This class of submarines is designed to remain submerged for longer durations and undertake operations such as intelligence gathering as well as participate in special operations during hostilities. Chile, Malaysia and Brazil are the other countries that possess these submarines. India currently has 17 submarines, including two ballistic missile submarines and one nuclear-powered attack submarine. The Indian Navy also has 14 conventionally-powered submarines, developed in collaboration with French, Russian and German companies. Eye on Exports Following the increased focus on ‘Make in India’ and simultaneous surge in demand from the Ministry of Defence, MDSL was forced to overlook demand emerging from outside India. The last vessel it delivered to an overseas client was in 2014. Rear Admiral Anil Kumar Saxena, NM (Retd), Director (Shipbuilding), Mazagon Docks Shipbuilders said: “We have exported 243 ships till date. The last ships we delivered were in 2012 and 2014 to the Bahamas and Mexico, which were multi-support vessels of about 7,000 tonnes. Thereafter we stopped our exports because our hands were full with the naval (Indian Navy) orders.” Saxena added: “But after that we augmented our capacity and increased it to 11 submarines and ten ships at a time. We have started to diversify into refit, exports and commercial vessels also.” The company has held discussions with some potential foreign customers. “We have had dialogues with some countries from Africa and Latin America, Middle East and South East Asia. We got some leads from there and we have given our bits to them, but because of Covid-19, things are not moving as earlier and it may take some time,” added Saxena. Covid-19 has affected the PSU’s operations since it is headquartered in Mumbai, one of the worst hit cities in India. “The trains and buses in Mumbai were under total lockdown for three months. We have started to get 50-60 percent of people back since trains have partially resumed. We were also impacted by the sub-contracted manpower. Because they had people coming from States like UP, Bihar and Orissa, who went back. They are coming back but not at the same speed we were hoping,” added Saxena.
 

indiatester

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INS Vagir: Indian Navy to get fifth Scorpene-class submarine from Mazagon Dock in six months

Defence public sector undertaking (PSU) Mazagon Dock Shipbuilders (MDSL) will hand over its fifth Scorpene-class submarine to the Indian Navy by the end of this year or early next year, a top company official said. The defence PSU has stepped up the pace of construction and deliveries of submarines and ships over the last couple of years to ensure adherence to the agreed timelines. The first of the six Scorpene-class submarines, INS Kalvari, was launched in 2015 and commissioned into service in late 2017. MDSL is working with French collaborator Naval Group (earlier known as DCNS) on transfer of technology for the submarines under Project 75 (P75) with the deal valued at over Rs 23,000 crore. (This project should not be confused with P75I (Project 75 India), which envisages construction of the long-pending Rs 42,000 crore, six stealth submarines, which will be built by MDSL and L&T.) Sanjeev Singhal, Director (Finance), Mazagon Dock Shipbuilders, said: “In spite of the Covid-19 challenges, we are trying to keep the timelines of whatever we had planned earlier, including the delivery of the fifth submarine sometime by end of this year or early next year. In addition, basin trials of one of the ships are also scheduled before early November.” Since 2017 MDSL has delivered one submarine every year to the Indian Navy. INS Khanderi was launched in 2017 followed by INS Karanj in 2018 and INS Vela in 2019. Due to the Covid-19 disruption, the company suffered a setback of about three months in the development of the fifth submarine, known as INS Vagir. The PSU believes it can complete deliveries of all the contracted submarines by 2022, wLast delivery by 2022ith the last of the six, INS Vagsheer, expected to be launched by then. “In 2021-22 and 2022-23, we should be able to make up for the impact which has been there for FY21,” added Singhal, speaking at an analyst event for the PSU’s initial public offering (IPO). Mazagon Dock Shipbuilders raised Rs 443 crore through a public issue between September 29 and October 1. The company has an order book of Rs 54,500 crore. Scorpene submarines are a class of diesel-electric attack submarines that claim to have stealth features. This class of submarines is designed to remain submerged for longer durations and undertake operations such as intelligence gathering as well as participate in special operations during hostilities. Chile, Malaysia and Brazil are the other countries that possess these submarines. India currently has 17 submarines, including two ballistic missile submarines and one nuclear-powered attack submarine. The Indian Navy also has 14 conventionally-powered submarines, developed in collaboration with French, Russian and German companies. Eye on Exports Following the increased focus on ‘Make in India’ and simultaneous surge in demand from the Ministry of Defence, MDSL was forced to overlook demand emerging from outside India. The last vessel it delivered to an overseas client was in 2014. Rear Admiral Anil Kumar Saxena, NM (Retd), Director (Shipbuilding), Mazagon Docks Shipbuilders said: “We have exported 243 ships till date. The last ships we delivered were in 2012 and 2014 to the Bahamas and Mexico, which were multi-support vessels of about 7,000 tonnes. Thereafter we stopped our exports because our hands were full with the naval (Indian Navy) orders.” Saxena added: “But after that we augmented our capacity and increased it to 11 submarines and ten ships at a time. We have started to diversify into refit, exports and commercial vessels also.” The company has held discussions with some potential foreign customers. “We have had dialogues with some countries from Africa and Latin America, Middle East and South East Asia. We got some leads from there and we have given our bits to them, but because of Covid-19, things are not moving as earlier and it may take some time,” added Saxena. Covid-19 has affected the PSU’s operations since it is headquartered in Mumbai, one of the worst hit cities in India. “The trains and buses in Mumbai were under total lockdown for three months. We have started to get 50-60 percent of people back since trains have partially resumed. We were also impacted by the sub-contracted manpower. Because they had people coming from States like UP, Bihar and Orissa, who went back. They are coming back but not at the same speed we were hoping,” added Saxena.
Good news, but one per year is slow IMHO. I think we should look at common build infrastructure across public and private builders to lower the entry barrier and better utilization of expensive infrastructure.
 

BON PLAN

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Good news, but one per year is slow IMHO. I think we should look at common build infrastructure across public and private builders to lower the entry barrier and better utilization of expensive infrastructure.
Indeed.
I add that without a follow on order, the skill will be forgotten very quickly.... It's sad. And it's as usual, a bad Indian habit.
All or nearly will have to be made from scratch for P75I...
 

Bhurki

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Good news, but one per year is slow IMHO. I think we should look at common build infrastructure across public and private builders to lower the entry barrier and better utilization of expensive infrastructure.
You should be happy that it is 1/year.
1/year for the lifetime of these ships is still 30 subs in force, considering average life of a diesel boat to be 30 years.

The thing is, it won't be 1/year after the 6th ship is launched. Then, it'll be 0/year.
 

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