Corvettes of Indian Navy : News and Discussions

Was showcased back in 2009 at some Russian defence expo, possibly might be the design for the 6 Next Generation Missile Vessels (NGMV) which are to be built for the Indian Navy.
The contract has been left lingering due to budget crunch in the Navy.
The RFP puts the required crew twice the size of Veer class. NGMV will be more comparable to Kora Class size.
 
I don't think it would be a next-generation corvette. As it doesn't feature the air wing bay. Though I think that perhaps, the air wing is not in the RFP provided. personal opinion
 
I don't think it would be a next-generation corvette. As it doesn't feature the air wing bay. Though I think that perhaps, the air wing is not in the RFP provided. personal opinion
Its Next Generation Missile Vessel.

There is a separate RFI for 7 P28A Next Generation Corvette. They have full fledged aviation support facilities.
 
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different angels of the grse design for the aswswc
 

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Navy’s new corvette, INS Kavaratti, shows why time and cost overruns are endemic to warship projects


When Chief of Army Staff, General Manoj Mukund Naravane, commissions Indian Naval Ship (INS) Kavaratti in Visakhapatnam on Thusday, it will mark the end of Project 28 – one of the Indian Navy’s most ambitious, most delayed and most budget-busting warship projects.

Project 28, which envisioned building four indigenous anti-submarine corvettes at Garden Reach Shipbuilders and Engineers, Kolkata (GRSE), will end four years later than planned. The Ministry of Defence (MoD) approved it in 2003 and the first corvette was to be delivered in 2012, with the other three following at one-year intervals.

Project 28 has also overshot its budget by more than 250 per cent. The project’s sanctioned cost was Rs 2,700 crore, but will end up costing over Rs 7,000 crore.

Project 28 illustrates why time and cost overruns are endemic to most Indian warship building projects. A central reason is the navy’s operational assessment that it is better to get a warship late and over-budget than to get one that is technologically overmatched by potential adversaries.

Project 28 also suffered significant delays because the navy insisted on indigenizing each corvette to the maximum extent possible. GRSE told Business Standard that INS Kavaratti will have achieved an unprecedented indigenization level of 90 per cent.

Delay began even before construction did, with the navy deciding that Project 28 corvettes would be the first Indian warships to be constructed from indigenous warship-grade steel. The Steel Authority of India’s Bhilai steel plant eventually developed the so-called DMR249A steel. But that involved a two-year delay.

Then, after INS Kamorta and INS Kadmatt – the first two corvettes – joined the fleet in 2014 and 2016 respectively, the navy ambitiously decided to build the remaining two corvettes’ superstructures with composite materials to make them lighter and, therefore, faster. In addition, warships built from composites reflect radar far less than steel, making them harder to detect.

This meant going to Kockums of Sweden for materials and to learn construction with composites, causing another year of delay.

On the positive side, this resulted in the weight of the third and fourth corvettes – INS Kiltan and Kavaratti – being reduced from 3,150 tonnes to just 3,000 tonnes. These corvettes now cleave through the seas at a pacy 46 kilometres per hour (kmph) and have a patrol endurance of 6,400 km at a speed of 33 kmph.

Further delay was caused because of the determination to indigenize as many systems and sub-systems as possible. Vendors had to be developed even in the complex areas of sensors and weapons, where import content is usually high.

GRSE says INS Kavaratti will field a 76 millimetre Otomelara gun built by Bharat Heavy Electricals Ltd, while Larsen & Toubro has built its heavyweight torpedo tubes and rocket launchers. Ordnance Factory, Ambarnath manufactures the Kavach chaff launchers that serve as decoys for incoming missiles. Bharat Electronics Ltd has built most of the sensors and combat management systems in INS Kavaratti.

Kirloskar Oil Engines Ltd (KOEL) has built the four diesel engines that power the Project 28 corvettes, while Cummins and Kirloskar Electric have engineered the 3 megawatt generators that supply electricity on-board.

Remarkably, the expertise that GRSE and its sub-vendors have accumulated in designing and manufacturing a world-class anti-submarine corvette will now wither, since there are no more orders for such warships. Instead, the navy is evolving a design for the so-called “Next Generation Corvette”.

Major navies evolve a successful warship design and then achieve economy of scale by building them in large numbers, with only incremental changes to the basic design. The US Navy has built 82 destroyers of the successful Arleigh Burke-class and China is following the same approach with its latest Type 055 Renhai-class destroyers.
 

Navy’s new corvette, INS Kavaratti, shows why time and cost overruns are endemic to warship projects


When Chief of Army Staff, General Manoj Mukund Naravane, commissions Indian Naval Ship (INS) Kavaratti in Visakhapatnam on Thusday, it will mark the end of Project 28 – one of the Indian Navy’s most ambitious, most delayed and most budget-busting warship projects.

Project 28, which envisioned building four indigenous anti-submarine corvettes at Garden Reach Shipbuilders and Engineers, Kolkata (GRSE), will end four years later than planned. The Ministry of Defence (MoD) approved it in 2003 and the first corvette was to be delivered in 2012, with the other three following at one-year intervals.

Project 28 has also overshot its budget by more than 250 per cent. The project’s sanctioned cost was Rs 2,700 crore, but will end up costing over Rs 7,000 crore.

Project 28 illustrates why time and cost overruns are endemic to most Indian warship building projects. A central reason is the navy’s operational assessment that it is better to get a warship late and over-budget than to get one that is technologically overmatched by potential adversaries.

Project 28 also suffered significant delays because the navy insisted on indigenizing each corvette to the maximum extent possible. GRSE told Business Standard that INS Kavaratti will have achieved an unprecedented indigenization level of 90 per cent.

Delay began even before construction did, with the navy deciding that Project 28 corvettes would be the first Indian warships to be constructed from indigenous warship-grade steel. The Steel Authority of India’s Bhilai steel plant eventually developed the so-called DMR249A steel. But that involved a two-year delay.

Then, after INS Kamorta and INS Kadmatt – the first two corvettes – joined the fleet in 2014 and 2016 respectively, the navy ambitiously decided to build the remaining two corvettes’ superstructures with composite materials to make them lighter and, therefore, faster. In addition, warships built from composites reflect radar far less than steel, making them harder to detect.

This meant going to Kockums of Sweden for materials and to learn construction with composites, causing another year of delay.

On the positive side, this resulted in the weight of the third and fourth corvettes – INS Kiltan and Kavaratti – being reduced from 3,150 tonnes to just 3,000 tonnes. These corvettes now cleave through the seas at a pacy 46 kilometres per hour (kmph) and have a patrol endurance of 6,400 km at a speed of 33 kmph.

Further delay was caused because of the determination to indigenize as many systems and sub-systems as possible. Vendors had to be developed even in the complex areas of sensors and weapons, where import content is usually high.

GRSE says INS Kavaratti will field a 76 millimetre Otomelara gun built by Bharat Heavy Electricals Ltd, while Larsen & Toubro has built its heavyweight torpedo tubes and rocket launchers. Ordnance Factory, Ambarnath manufactures the Kavach chaff launchers that serve as decoys for incoming missiles. Bharat Electronics Ltd has built most of the sensors and combat management systems in INS Kavaratti.

Kirloskar Oil Engines Ltd (KOEL) has built the four diesel engines that power the Project 28 corvettes, while Cummins and Kirloskar Electric have engineered the 3 megawatt generators that supply electricity on-board.

Remarkably, the expertise that GRSE and its sub-vendors have accumulated in designing and manufacturing a world-class anti-submarine corvette will now wither, since there are no more orders for such warships. Instead, the navy is evolving a design for the so-called “Next Generation Corvette”.

Major navies evolve a successful warship design and then achieve economy of scale by building them in large numbers, with only incremental changes to the basic design. The US Navy has built 82 destroyers of the successful Arleigh Burke-class and China is following the same approach with its latest Type 055 Renhai-class destroyers.
All 4 lack their Towed Array Sensor, ASW helicopter and SAM. So pretty much an OPV with limited ASW capability as of now.
 
Now they should start NGC programme it's already too late.
Talking about the smaller combat vessels in Navy (smaller than Frigates).
1. The Sukanya Class OPVs are nearing their retirement age now. We have proposed Next Generation OPV project, should be immediately pursued and awarded.

2. Minesweepers. GSL was supposed to start construction in 2018 itself. We need to sign a deal with Russia asap for the hull and with European vendors for the sensor/equipment. We are the only big navy without a Minesweeper today.

3. Abhay Class Corvettes are also on verge of retirement. ASW-SWC project was signed in 2019. But still no news on steel cutting yet. This project needs to be accelerated, given that no more P28 vessels are going to come for quite some time.

4. The unsung heroes or our attacking arm, the Veer class missile boats in any possible conflict with Pakistan are also retiring. Next Generation Missile Vessel program was proposed to replace that missile attack capability specially. Project in RFP stage. The larger Khukri Class are also on verge of going out. NGMV ships are important piece.

5. The NGCs are actually more or less a light weight general purpose Frigate actually. They are to have Anti Ship, SAM and ASW capability with helicopter hanger. They are not exactly replacing something. In general purpose Frigate, we have ordered 4 Talwar class, therefore this project isn't a pressing concern right now. Expect movement on this project post 2022.
 
So after this order, we don't have any significant induction over the next 2-3 years except for Scorpene subs. 17A project has just started and I am skeptical of 15B Vizag class destroyers joining on time next year.

So our next gen missile vessel, OPV (in Reliance shipyards) and ASW, Minesweepers, are going to get delayed big time with lots of old ships going to retire. Only the 2 Talwar class frigates will join in the time frame along with our near empty INS Vikrant. We also have an Project 18 on paper.
 
So after this order, we don't have any significant induction over the next 2-3 years except for Scorpene subs. 17A project has just started and I am skeptical of 15B Vizag class destroyers joining on time next year.

So our next gen missile vessel, OPV (in Reliance shipyards) and ASW, Minesweepers, are going to get delayed big time with lots of old ships going to retire. Only the 2 Talwar class frigates will join in the time frame along with our near empty INS Vikrant. We also have an Project 18 on paper.
2021 should see 15B coming along with IAC 1.
 
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