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

India built 8 more SSKs than Taiwan. Yet Taiwan has its own submarine design in testing today while we are having such debates in India.

You need to hire MBAs from IIMs instead of UPSC cat shit candidates for running projects in this country.

Cat shit because bull shit can still be used as fuel.

Hello Sir

Please look at this News

It is indirectly relevant for our P 76 , indigenous submarine programme

 
Ideal case would have been to ensure the Scorpene line continued for another 6 units, while India worked with France to have something like Orka, and build 12 units for that, and by the time 6th Orka was in water, India should have aimed to have its own prototype in the water.
That is what is intended with the additional subs, but the issue got complicated first by bureaucratic process which suits certain political agenda in the country, and Navy insistence about AIP plug. Ideal scenario is prove the indigenous AIP plug on a new batch hull then move onto a new generation of subs, but we have got situation where a hull will be cut up and fitted for testing during refit?

I know little about this aspect but my observation is that there are some genuine glaring gaps in the knowledge chain and expertise available within the country which the stakeholders are trying to solve in their own ways. Govt by insisting on TOT, PSU shipbuilders by playing fair and simply saying yes sir to Govt/MoD and doing what they are told, Naval sub design bureau by staying completely silent and Navy chief by simply bragging about indigenous capability without giving any genuine proof (submarine building capability is not discussed much in open tbh).

Issue is all of these methods are wrong and useless but still pushed forward because it serves the stakeholders comfort zone very well. Until we have a 1971 or 1757 like moment again, this will not change. Taiwan has had that moment, NoKo as well, China spent decades living in such moment.
 
Hello Sir

Please look at this News

It is indirectly relevant for our P 76 , indigenous submarine programme

Yes and no.
3 weeks under the surface, OK, but at what speed? 3 knots?
The Short fins Barracuda was also aimed to stay 3 weeks under the surface (probably with the same speed limitation) without Li ion battery.

It's not specially impressive.
 
Yes and no.
3 weeks under the surface, OK, but at what speed? 3 knots?
The Short fins Barracuda was also aimed to stay 3 weeks under the surface (probably with the same speed limitation) without Li ion battery.

It's not specially impressive.

India is also attempting an Indigenous Diesel Electric Submarine with all the Experience gained so far from Scorpene and Nuclear Submarine project

Let us hope it remains Technologically relevant when it finally comes out
 
It seems that the turkish imagine to put a small nucrear reactor (40Mh thermical power) in a sub.
A power not enough to give the higher speed of a pure SSN, but able to replace AIP but with months of endurance.
Not a bad idea.
 
DRDO already handed over INS RLG for naval ship application way back in 2017 .

https://www.pib.gov.in/newsite/PrintRelease.aspx?relid=159925&reg=3&lang=2

Wonder why's the same system for submarine not yet developed ?
There are mk1 mk2 mk3 etc, one of the sensors is even mk5. Submarine one must be quite critical. There is existing rlg based imu used in ships, choppers and other application platforms that give very good accuracy.

 
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Good report by Sandeep Unnithan.

  • Technical design of the P-76 indigenous diesel submarine is underway by WDB's Submarine Design Group
  • Project is being pursued under ATV program (responsible for building SSBNs), which is directly overseen by PMO
  • P-76 will be a single-hulled design (like Scorpene, not like Kilo or Arihant)
  • Orders for onboard equipment contracts could go out by 2028
  • First boat expected to be ready by 2034
 
I really hope they make use of katupalli here, it has massive expansion capacity and L&T is alr quite experienced with submarines. MDL can handle the german subs and maybe 6 more p76 class while katupalli can easily handle 6 p76 and maybe even SSN mass production in the future.

Good report by Sandeep Unnithan.

  • Technical design of the P-76 indigenous diesel submarine is underway by WDB's Submarine Design Group
  • Project is being pursued under ATV program (responsible for building SSBNs), which is directly overseen by PMO
  • P-76 will be a single-hulled design (like Scorpene, not like Kilo or Arihant)
  • Orders for onboard equipment contracts could go out by 2028
  • First boat expected to be ready by 2034
 
I really hope they make use of katupalli here, it has massive expansion capacity and L&T is alr quite experienced with submarines. MDL can handle the german subs and maybe 6 more p76 class while katupalli can easily handle 6 p76 and maybe even SSN mass production in the future.

Kattupalli makes sense as a second diesel sub-building yard after MDL. If the P-76 is being pursued under ATVP as reported, then L&T also makes sense as the preferred builder. Though one has to wonder, if it's possible to pursue fully-indigenous AIP subs for delivery in the 2030s, why even continue to pursue P-75I? Seems more and more like a political quid-pro-quo to get a favourable FTA with EU.

SSN final assembly will never take place at anywhere other than SBC, Vizag. Too much nuclear-ready infrastructure is needed for that, stuff which is not easy or economically viable to replicate at multiple places.

What's possible is that module-fabrication for future nuke subs may also take place at Kattupalli, provided they have the machine shops to support it. Right now only L&T Hazira seems to be doing it.
 
Though one has to wonder, if it's possible to pursue fully-indigenous AIP subs for delivery in the 2030s, why even continue to pursue P-75I? Seems more and more like a political quid-pro-quo to get a favourable FTA with EU.

No, it's because we need subs. P-75I is expected to begin deliveries in 2033, P-76 deliveries will be timed for after the 6 P-75Is are delivered.

Design stage and contract should finish by 2029 and construction should begin in 2030. Which means it will take at least until 2037-38 to see the first sub.

P-76 is likely to be built by both MDL and L&T.
 
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It is actually contracted for detailed design to L&T.


It could also be ATAGS style. MDL and L&T are likely working on DRDO+WDB's base design and adding their own flair to it. L1 wins 60% of the orderbook.

At 12 subs right off the bat, we need 2 lines.
 
No, it's because we need subs. P-75I is expected to begin deliveries in 2033, P-76 deliveries will be timed for after the 6 P-75Is are delivered.

Design stage and contract should finish by 2029 and construction should begin in 2030. Which means it will take at least until 2037-38 to see the first sub.

P-76 is likely to be built by both MDL and L&T.

Only 6 Indian SSK are younger than 25 years.

I agree that requirement of more diesel subs is there.

As I've argued on the forum before, what doesn't make sense is why we need a gold-plated German boat that's based around a design that doesn't yet exist in service anywhere, with an AIP solution whose endurance on a boat that big isn't proven. Overall, too many unknowns, too much cost and too much additional exposure to political risk (Germany, duh).

More numbers could have been built up by additional Scorpenes, with Indian AIP & ever-increasing indigenization. Opting out of the indigenous CMS would have made even the +3 much less expensive. If we have a fully Indian SSK coming in the 2030s, I think SUBTICS was okay to live with - especially as the French had already agreed to integrate EHWT and what not.
 
I agree that requirement of more diesel subs is there.

As I've argued on the forum before, what doesn't make sense is why we need a gold-plated German boat that's based around a design that doesn't yet exist in service anywhere, with an AIP solution whose endurance on a boat that big isn't proven. Overall, too many unknowns, too much cost and too much additional exposure to political risk (Germany, duh).

More numbers could have been built up by additional Scorpenes, with Indian AIP & ever-increasing indigenization. Opting out of the indigenous CMS would have made even the +3 much less expensive. If we have a fully Indian SSK coming in the 2030s, I think SUBTICS was okay to live with - especially as the French had already agreed to integrate EHWT and what not.

Can't help it. Scorpene doesn't meet future requirements and we need advanced next-gen subs with proven tech. The only faster choices are direct imports and second-hand Kilos, neither being the primary choices for the IN.

And we are doing it Korean style. The P-76's design will be influenced by the design of the German sub. And the German sub itself is an improved variant of the Type 214. So almost the entire thing is based on proven systems.