Corvettes of Indian Navy : News and Discussions
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Vayu Aerospace Review (@ReviewVayu) Tweeted:
Finnish DA-Group participates in Indian Navy project: The design development of the recently awarded contract worth ₹6,311.32 crore for the construction of eight Anti-Submarine Warfare Shallow Water Craft (ASWSWCs) to Cochin Shipyard Ltd. (CSL) by Indian Navy will be a joint... ( )
Vayu Aerospace Review (@ReviewVayu) Tweeted:
collaboration effort between CSL, Smart Engineering & Design Solutions (India) Private Ltd. and DA-Group subsidiary Surma of Finland. In what is to be one of the most technologically advanced naval combatant platforms to be commissioned by the Indian Navy... ( )
Vayu Aerospace Review (@ReviewVayu) Tweeted:
...the design will have features only found in other naval powerhouses. The vessel design shall be collaboratively developed by SEDS & CSL, with SEDS doing the basic part and CSL the rest. ( )
Finnish DA-Group participates in Indian Navy project: The design development of the recently awarded contract worth ₹6,311.32 crore for the construction of eight Anti-Submarine Warfare Shallow Water Craft (ASWSWCs) to Cochin Shipyard Ltd. (CSL) by Indian Navy will be a joint... ( )
Vayu Aerospace Review (@ReviewVayu) Tweeted:
collaboration effort between CSL, Smart Engineering & Design Solutions (India) Private Ltd. and DA-Group subsidiary Surma of Finland. In what is to be one of the most technologically advanced naval combatant platforms to be commissioned by the Indian Navy... ( )
Vayu Aerospace Review (@ReviewVayu) Tweeted:
...the design will have features only found in other naval powerhouses. The vessel design shall be collaboratively developed by SEDS & CSL, with SEDS doing the basic part and CSL the rest. ( )
None in the tweet. Wait for PKS or @Ashwin who has the most authentic & original sources to post it.
The old CSL design then, any new upgrades to the design ? Somehow that ship doesn't look like "The most technologically advanced ship in the Navy" to me.
Does that GRSE design still holds good ? That's the one I am more interested in.
The most idiotic things, two different designs. We should have had stuck to just one.
We are no US and this is no LCS project.
We are no US and this is no LCS project.
It's not a big deal, it's just corvettes. And the shipyards need to improve their design capability as well because the NDB is overworked.
I think the 16 corvettes each will get split between the two fleets. The 8 built by CSL will likely end up in Mumbai/Karwar, and the other 8 in Vizag/Port Blair. So even their maintenance and refits can be carried out at their respective facilities.
It's also a good idea considering exports, India will get two options to sell to other countries.
There are two corvette projects now. One is the NGMV with a 2800NM range, 6 ships. The other is the Kamorta successor called NGC, with a 4000NM range, 7 ships. NGC is Project 28A.
The NGMV is purely anti-surface, while NGC is both anti-surface and anti-sub.
The NGC is basically a frigate. The only reason why it's classified as a corvette is because it will have short range air defence, which is primarily for self-protection from AShMs.
Livefist (@livefist) Tweeted:
October 17 deadline for bids to be submitted for @IndianNavy’s SRSAM contest for its Kamorta-class corvettes. @byMBDA’s Sea Ceptor system goes up against Israeli & South Korean ship-based air defence systems. MBDA to emphasise Sea Ceptor ‘soft launch’ and @RoyalNavy support: Livefist on Twitter ( )
October 17 deadline for bids to be submitted for @IndianNavy’s SRSAM contest for its Kamorta-class corvettes. @byMBDA’s Sea Ceptor system goes up against Israeli & South Korean ship-based air defence systems. MBDA to emphasise Sea Ceptor ‘soft launch’ and @RoyalNavy support: Livefist on Twitter ( )
As Project 28 nears end, GRSE feels it’s equipped to build more corvettes
Workmen bustle over INS Kavaratti, a sleek anti-submarine warfare (ASW) corvette nearing completion at Garden Reach Shipbuilders & Engineers (GRSE), Kolkata, on the monsoon-swollen Hooghly River. The last of four corvettes built under Project 28, Kavaratti will be commissioned before end-2019 – three years later than contracted.
Besides being badly late, Project 28 is also over-budget – by an incredible 250 per cent. The four corvettes were sanctioned for Rs 2,700 crore, but INS Kamorta, Kadmatt, Kiltan and Kavaratti will end up costing about Rs 7,000 crore in all.
Even so, there is no complaint from the Ministry of Defence (MoD), or from the usually demanding navy. The admirals regard the delay as an acceptable price for making the Kamorta-class India’s most highly indigenised warships – about 90 per cent “Made in India”.
The ASW corvettes, which are designed and equipped to detect enemy submarines and destroy them with torpedoes, have also ended up far more silent – and, therefore, better equipped to listen for submarines – than originally envisioned.
Project 28 time-and-cost overruns mounted progressively. The first delay was caused by the MoD’s decision that INS Kamorta and its successors would be constructed from indigenous warship-grade steel – called DMR 249A, and manufactured by Bhilai Steel Plant. Developing and producing DMR 249A in sufficient quantities took two years longer than anticipated.
Then, after constructing the first two corvettes (INS Kamorta in 2014 and Kadmatt in 2016), the navy decided that the third and fourth corvettes would have superstructures (the part above the deck) built from composite materials.
The lower radar reflectivity of composites makes the corvettes harder to pick up with radar. Also, being far lighter then steel, composite superstructures have reduced the weight of INS Kiltan and Kavaratti from 3,150 tonnes to just 3,000 tonnes, thereby increasing their speed to 46 kilometres per hour (kmph) and their sea endurance to 6,400 km at a speed of 33 kmph.
However, that also imposed another year’s delay, as Swedish firm Kockums taught GRSE workers the intricacies of building with composites. Since composites cannot be welded, sheets must be held together with rivets that are finely calibrated according to the weight they support.
Over the course of Project 28, indigenization levels have reached 90 per cent, says GRSE chief, Rear Admiral VK Saxena (Retired). These include the difficult areas of sensors and weapons, where import content is usually high.
Bharat Heavy Electricals Ltd has built the 76 millimetre Otomelara gun, while Larsen & Toubro has built the heavyweight torpedo tubes and rocket launchers used to destroy enemy submarines. The Kavach chaff launchers that serve as decoys for incoming missiles are built by the Ordnance Factory Board in Ambarnath.
Bharat Electronics Ltd has built most of the sensors and combat management systems in the Kamorta-class corvettes. These include the Revathi radar that detects enemy aircraft out to 300 km, the Lynx fire control radar that guides missiles and the Combat Management System (CMS) that integrates all the weapons and sensors.
Kirloskar Oil Engines Ltd (KOEL) has built the four diesel engines that power these corvettes, while the on-board power generation system (consisting of 3 MegaWatt generators) is manufactured in India by Cummins and Kirloskar Electric.
Given the success in designing, manufacturing and evolving a successful ASW corvette, GRSE executives say the MoD should order more corvettes, which the navy badly needs.
Yet, despite the manufacturing eco-system already created, the navy is now evolving a design for the so-called “Next Generation Corvette”.
“We have taken up a case with the navy and are in talks with them. It makes sound economic sense to freeze the design and specifications of the successful Kamorta-class and build around that,” says Saxena.
The GRSE chief points to the US Navy’s so-called DDG-51 programme, under which it has built 82 destroyers of the successful Arleigh Burke-class. Currently, every one of the US Navy’s destroyers is of this class, which has allowed incremental design and process improvements and economy of scale for vendors and sub-vendors.
Workmen bustle over INS Kavaratti, a sleek anti-submarine warfare (ASW) corvette nearing completion at Garden Reach Shipbuilders & Engineers (GRSE), Kolkata, on the monsoon-swollen Hooghly River. The last of four corvettes built under Project 28, Kavaratti will be commissioned before end-2019 – three years later than contracted.
Besides being badly late, Project 28 is also over-budget – by an incredible 250 per cent. The four corvettes were sanctioned for Rs 2,700 crore, but INS Kamorta, Kadmatt, Kiltan and Kavaratti will end up costing about Rs 7,000 crore in all.
Even so, there is no complaint from the Ministry of Defence (MoD), or from the usually demanding navy. The admirals regard the delay as an acceptable price for making the Kamorta-class India’s most highly indigenised warships – about 90 per cent “Made in India”.
The ASW corvettes, which are designed and equipped to detect enemy submarines and destroy them with torpedoes, have also ended up far more silent – and, therefore, better equipped to listen for submarines – than originally envisioned.
Project 28 time-and-cost overruns mounted progressively. The first delay was caused by the MoD’s decision that INS Kamorta and its successors would be constructed from indigenous warship-grade steel – called DMR 249A, and manufactured by Bhilai Steel Plant. Developing and producing DMR 249A in sufficient quantities took two years longer than anticipated.
Then, after constructing the first two corvettes (INS Kamorta in 2014 and Kadmatt in 2016), the navy decided that the third and fourth corvettes would have superstructures (the part above the deck) built from composite materials.
The lower radar reflectivity of composites makes the corvettes harder to pick up with radar. Also, being far lighter then steel, composite superstructures have reduced the weight of INS Kiltan and Kavaratti from 3,150 tonnes to just 3,000 tonnes, thereby increasing their speed to 46 kilometres per hour (kmph) and their sea endurance to 6,400 km at a speed of 33 kmph.
However, that also imposed another year’s delay, as Swedish firm Kockums taught GRSE workers the intricacies of building with composites. Since composites cannot be welded, sheets must be held together with rivets that are finely calibrated according to the weight they support.
Over the course of Project 28, indigenization levels have reached 90 per cent, says GRSE chief, Rear Admiral VK Saxena (Retired). These include the difficult areas of sensors and weapons, where import content is usually high.
Bharat Heavy Electricals Ltd has built the 76 millimetre Otomelara gun, while Larsen & Toubro has built the heavyweight torpedo tubes and rocket launchers used to destroy enemy submarines. The Kavach chaff launchers that serve as decoys for incoming missiles are built by the Ordnance Factory Board in Ambarnath.
Bharat Electronics Ltd has built most of the sensors and combat management systems in the Kamorta-class corvettes. These include the Revathi radar that detects enemy aircraft out to 300 km, the Lynx fire control radar that guides missiles and the Combat Management System (CMS) that integrates all the weapons and sensors.
Kirloskar Oil Engines Ltd (KOEL) has built the four diesel engines that power these corvettes, while the on-board power generation system (consisting of 3 MegaWatt generators) is manufactured in India by Cummins and Kirloskar Electric.
Given the success in designing, manufacturing and evolving a successful ASW corvette, GRSE executives say the MoD should order more corvettes, which the navy badly needs.
Yet, despite the manufacturing eco-system already created, the navy is now evolving a design for the so-called “Next Generation Corvette”.
“We have taken up a case with the navy and are in talks with them. It makes sound economic sense to freeze the design and specifications of the successful Kamorta-class and build around that,” says Saxena.
The GRSE chief points to the US Navy’s so-called DDG-51 programme, under which it has built 82 destroyers of the successful Arleigh Burke-class. Currently, every one of the US Navy’s destroyers is of this class, which has allowed incremental design and process improvements and economy of scale for vendors and sub-vendors.
INS Kadmatt(P29), the second ship of the Kamorta class ASW corvettes in detail :
Revathi radar :
The main Mast, notice the black pipes on the rear, soot formation is also visible ? what are those ? APU exhaust ?
Oto Melara 76 mm Super Rapid Gun Mount (SRGM) :
RBU-6000 :
TMX/EO Mk 2 Fire Control Radar (FCR) for AK-630 Close In Weapons Systems (CIWS) :
Revathi radar :
The main Mast, notice the black pipes on the rear, soot formation is also visible ? what are those ? APU exhaust ?
Oto Melara 76 mm Super Rapid Gun Mount (SRGM) :
RBU-6000 :
TMX/EO Mk 2 Fire Control Radar (FCR) for AK-630 Close In Weapons Systems (CIWS) :
GRSE set to deliver ASW corvette INS Kavaratti to Navy soon
By Press Trust of India, Kolkata
January 27, 2020; 12:24 IST
Defence PSU Garden Reach Shibuilders and Engineers (GRSE) is set to deliver anti-submarine warfare stealth corvette INS Kavaratti to the Navy soon.
Adding to Indian Navy's firepower, Defence PSU Garden Reach Shipbuilders and Engineers (GRSE) is set to deliver anti-submarine warfare stealth corvette INS Kavaratti to the Navy soon, its Chairman-cum-Managing Director Rear Admiral V K Saxena said.
'Kavaratti' is the last of the four Anti-Submarine Warfare (ASW) stealth corvettes built by the GRSE for the Indian Navy under Project P28, he said.
"All trials of the ship have been successfully completed, and we plan to deliver it by the end of this month," Saxena told PTI here.
'Kavaratti' will be the 104th ship to be constructed and delivered by the GRSE, he said.
With a displacement of 3,300 tonnes, the ship has a carbon composite superstructure, which has been flawlessly integrated with the steel hull through technology developed by the GRSE.
"The carbon composite superstructure provides advangate of a lower weight of the warship, thus increasing its stability, manoeuvrability and faster acceleration," Saxena said.
The new technology will mean that the warship, which has 90 per cent indigenous components, will also require lower maintenance, he said.
The ship is equipped to fight in nuclear, chemical and biological warfare conditions and its weapons and sensors suite is predominantly indigenous, according to Defence sources.
The first of the four ASW stealth corvettes under Project P28 - 'Kamorta', was delivered to the Navy in July 2014, 'Kadmatt' was delivered in November, 2015 and 'Kiltan' was delivered in October 2017, a GRSE official said.
All these four corvettes under the project are named after islands in the Lakshadweep archipelago in the Arabian Sea, he said.
The GRSE currently has a strong order book position of around Rs 27,400 crore under which there are a total of 19 warships at various stages of construction under six projects that are underway, the official said.
Of these, five projects are of the Indian Navy and one is of the Indian Coast Guard.
The Defence PSU has delivered five warships to Indian Navy in last 10 months, between March 2019 and December 2019, he said.
GRSE set to deliver ASW corvette INS Kavaratti to Navy soon
By Press Trust of India, Kolkata
January 27, 2020; 12:24 IST
Defence PSU Garden Reach Shibuilders and Engineers (GRSE) is set to deliver anti-submarine warfare stealth corvette INS Kavaratti to the Navy soon.
Adding to Indian Navy's firepower, Defence PSU Garden Reach Shipbuilders and Engineers (GRSE) is set to deliver anti-submarine warfare stealth corvette INS Kavaratti to the Navy soon, its Chairman-cum-Managing Director Rear Admiral V K Saxena said.
'Kavaratti' is the last of the four Anti-Submarine Warfare (ASW) stealth corvettes built by the GRSE for the Indian Navy under Project P28, he said.
"All trials of the ship have been successfully completed, and we plan to deliver it by the end of this month," Saxena told PTI here.
'Kavaratti' will be the 104th ship to be constructed and delivered by the GRSE, he said.
With a displacement of 3,300 tonnes, the ship has a carbon composite superstructure, which has been flawlessly integrated with the steel hull through technology developed by the GRSE.
"The carbon composite superstructure provides advangate of a lower weight of the warship, thus increasing its stability, manoeuvrability and faster acceleration," Saxena said.
The new technology will mean that the warship, which has 90 per cent indigenous components, will also require lower maintenance, he said.
The ship is equipped to fight in nuclear, chemical and biological warfare conditions and its weapons and sensors suite is predominantly indigenous, according to Defence sources.
The first of the four ASW stealth corvettes under Project P28 - 'Kamorta', was delivered to the Navy in July 2014, 'Kadmatt' was delivered in November, 2015 and 'Kiltan' was delivered in October 2017, a GRSE official said.
All these four corvettes under the project are named after islands in the Lakshadweep archipelago in the Arabian Sea, he said.
The GRSE currently has a strong order book position of around Rs 27,400 crore under which there are a total of 19 warships at various stages of construction under six projects that are underway, the official said.
Of these, five projects are of the Indian Navy and one is of the Indian Coast Guard.
The Defence PSU has delivered five warships to Indian Navy in last 10 months, between March 2019 and December 2019, he said.
GRSE set to deliver ASW corvette INS Kavaratti to Navy soon
INS Kavaratti has been handed over to the Navy, to be commissioned very soon.
Here she is out on sea trials :
Here she is out on sea trials :
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INS Kamorta in GRSE, around the end of construction.
INS Kiltan moves out of HSL for her currently ongoing deployment in the South China Sea :
INS Kiltan moves out of HSL for her currently ongoing deployment in the South China Sea :