Project-76 Indigenous Diesel-electric Submarine (SSK) Program

This thread is dedicated to the indigenous SSK class P76.

DRDO indigenous submarine proposal to go for CCS approval in couple of months; eight years for first sub


With the deal to buy six new diesel-electric submarines entering the contract negotiation phase, the Defence Research and Development Organisation (DRDO) is gearing up to bring a proposal to design and develop an indigenous conventional submarine to the Cabinet Committee on Security (CCS) for approval.

The procurement deal comes under Project-75I, while the indigenous development proposal comes under Project-76.

“The inter-ministerial consultation is going on and it should be ready for CCS approval in the next two months,” said an official who did not wish to be named. “Once approved, the design phase is expected to take two to three years, and another five years for construction. So it is expected to take around eight years to have the first submarine, once the project is sanctioned,” the source said.

The indigenous submarine is expected to displace around 3,000 tonnes and will be capable of launching land attack cruise missiles (LACMs), which are still under development, from its torpedo tubes. A new LACM being developed by DRDO fits this criteria, sources stated.

Over 90% indigenous content
As reported by The Hindu last June, DRDO carried out a preliminary study to determine the contours of P-76, after a go-ahead from the Defence Ministry. P-76 will be a continuation of the Advanced Technology Vessel (ATV) project, under which the Arihant series of nuclear ballistic missile submarines (SSBN) are being built, with another project underway to build nuclear-powered attack submarines (SSN).

The project is aiming for 90% to 95% indigenous content, with major systems being sourced domestically including the weapons, missiles, combat management system, sonars, communications, electronic warfare suite, mast, and periscope. Only some chips, electronics, and tubes will have to be imported, sources said, adding that the indigenous SSBNs also have over 90% indigenous content.

Parallel development
Meanwhile, the P-75I tender for six conventional submarines is set to begin contract negotiations after long delays, with the bid by Mazagon Dock Shipbuilders Limited (MDL) in partnership with Germany’s ThyssenKrupp Marine Systems (TKMS) of Germany have cleared the technical evaluation. The deal is estimated to be worth around ₹70,000 crore, way above the earlier benchmark of ₹43,000 crore. The final contract is expected to take at least a couple of years given the tough negotiations, and the first submarine will be delivered seven years later. This means that the P-75I and P-76 programmes will progress almost in parallel, if the development of the latter goes as per plan.

As reported earlier, the indigenous SSN programme is also in the design phase, which is expected to take four to five years, with another five years estimated for the construction and validation of the first submarine. From the proof of concept to the final construction plan, there are four stages of development, another source said.

Long timeframes
In December, Navy Chief Adm Tripathi said that a realistic timeframe would probably see the first SSN inducted in 2036-37, followed by the second one a couple of years later. Last October, the CCS approved the indigenous construction of two SSNs estimated to cost around ₹35,000 crore, while India’s fourth SSBN was launched into the water at the Ship Building Centre in Visakhapatnam.

The SSNs are a critical requirement for the Navy to keep a watch over the Indo-Pacific region as they provide unlimited endurance to perform a variety of tasks; their endurance is only limited by that of the crew.

The Indian Navy currently has 17 conventional submarines in service, but the majority of them are ageing platforms. This includes seven Russian Kilo class submarines, four German HDW submarines, and six French Scorpene submarines. A contract for three additional Scorpene-class submarines is set to be signed very soon, with the first of the them likely to be delivered in 2030.


Five years to build both SSK and SSN. Come on, who are they fooling?

Good news for starting it up though. Been claiming for many years that the design phase of P-76 will start as soon as we get P-75I done.
 
Five years to build both SSK and SSN. Come on, who are they fooling?

Good news for starting it up though. Been claiming for many years that the design phase of P-76 will start as soon as we get P-75I done.
Indigenous program are always kept hostage for gold plated imports, nothing new.

Meanwhile p75i now costs 70,000 crore.
 
This thread is dedicated to the indigenous SSK class P76.

DRDO indigenous submarine proposal to go for CCS approval in couple of months; eight years for first sub


With the deal to buy six new diesel-electric submarines entering the contract negotiation phase, the Defence Research and Development Organisation (DRDO) is gearing up to bring a proposal to design and develop an indigenous conventional submarine to the Cabinet Committee on Security (CCS) for approval.

The procurement deal comes under Project-75I, while the indigenous development proposal comes under Project-76.

“The inter-ministerial consultation is going on and it should be ready for CCS approval in the next two months,” said an official who did not wish to be named. “Once approved, the design phase is expected to take two to three years, and another five years for construction. So it is expected to take around eight years to have the first submarine, once the project is sanctioned,” the source said.

The indigenous submarine is expected to displace around 3,000 tonnes and will be capable of launching land attack cruise missiles (LACMs), which are still under development, from its torpedo tubes. A new LACM being developed by DRDO fits this criteria, sources stated.

Over 90% indigenous content
As reported by The Hindu last June, DRDO carried out a preliminary study to determine the contours of P-76, after a go-ahead from the Defence Ministry. P-76 will be a continuation of the Advanced Technology Vessel (ATV) project, under which the Arihant series of nuclear ballistic missile submarines (SSBN) are being built, with another project underway to build nuclear-powered attack submarines (SSN).

The project is aiming for 90% to 95% indigenous content, with major systems being sourced domestically including the weapons, missiles, combat management system, sonars, communications, electronic warfare suite, mast, and periscope. Only some chips, electronics, and tubes will have to be imported, sources said, adding that the indigenous SSBNs also have over 90% indigenous content.

Parallel development
Meanwhile, the P-75I tender for six conventional submarines is set to begin contract negotiations after long delays, with the bid by Mazagon Dock Shipbuilders Limited (MDL) in partnership with Germany’s ThyssenKrupp Marine Systems (TKMS) of Germany have cleared the technical evaluation. The deal is estimated to be worth around ₹70,000 crore, way above the earlier benchmark of ₹43,000 crore. The final contract is expected to take at least a couple of years given the tough negotiations, and the first submarine will be delivered seven years later. This means that the P-75I and P-76 programmes will progress almost in parallel, if the development of the latter goes as per plan.

As reported earlier, the indigenous SSN programme is also in the design phase, which is expected to take four to five years, with another five years estimated for the construction and validation of the first submarine. From the proof of concept to the final construction plan, there are four stages of development, another source said.

Long timeframes
In December, Navy Chief Adm Tripathi said that a realistic timeframe would probably see the first SSN inducted in 2036-37, followed by the second one a couple of years later. Last October, the CCS approved the indigenous construction of two SSNs estimated to cost around ₹35,000 crore, while India’s fourth SSBN was launched into the water at the Ship Building Centre in Visakhapatnam.

The SSNs are a critical requirement for the Navy to keep a watch over the Indo-Pacific region as they provide unlimited endurance to perform a variety of tasks; their endurance is only limited by that of the crew.

The Indian Navy currently has 17 conventional submarines in service, but the majority of them are ageing platforms. This includes seven Russian Kilo class submarines, four German HDW submarines, and six French Scorpene submarines. A contract for three additional Scorpene-class submarines is set to be signed very soon, with the first of the them likely to be delivered in 2030.

So if all goes to plan, the 2030s should see three parallel assembly lines churning out Kalvari B2, Type-214I and P-76 in India! If DRDO is approaching the CCS for approval, their design must have finally met the IN's expectations. You may recall that the IN had rejected DRDO SSK proposals at least once in the past.

But this makes P-75I prog seem all the more unnecessary. There's simply no justification for a country that builds nuke subs to be on the market for new SSK, especially when there are none that would fully meet our requirements out of the box. The Admirals are in need of a reality check.
 
Indigenous program are always kept hostage for gold plated imports, nothing new.

Meanwhile p75i now costs 70,000 crore.

No, requirements were meant to be created after we learned of foreign long term roadmaps. So now the indigenous sub will be designed with that knowledge. That's what we did with AMCA too, the IAF learned a lot from MMRCA and FGFA.