Kaveri Engine: Latest Developments & Discussion

[Anant]

Good news that the Kaveri is finally moving ahead, even if it is 30+ years late. That said, if GTRE wants to take the Kaveri's thrust to 90 kN, we may well be looking at some changes to the core. In its present form at 45-48 kN, the best we can hope for is 75-ish kN. Anything higher simply isn't feasible without ruining either the fuel efficiency of the engine or the engine itself.

 

[Kailash]

I highly doubt that. The Kaveri has a dry thrust of 45-48 kN. Taking that to 73 kN on wet thrust translates to roughly a 60% increase in thrust using an afterburner.

However, reaching 90 kN would mean 87.5-100% increase in thrust using an afterburner. From memory, there is not a single engine that has ever achieved this feat. The highest thrust increases generally come in at 70% or so, unless you look at some Russian engines that can do 80% extra thrust on the emergency thrust setting, but that tends to ruin the engine. 90 kN may simply not be possible using just an improved afterburner. The core may need to be altered.

60% is cutting edge. 90KN must be a new engine.

 

[MANIVANNAN N]

Very good news. Drdo fast track it. Dont depend anybody.

 

[Akshat]

Good news that the Kaveri is finally moving ahead, even if it is 30+ years late. That said, if GTRE wants to take the Kaveri's thrust to 90 kN, we may well be looking at some changes to the core. In its present form at 45-48 kN, the best we can hope for is 75-ish kN. Anything higher simply isn't feasible without ruining either the fuel efficiency of the engine or the engine itself.

All these movements have been happening for decades bro. Nothing has been delivered to forces for testing or has been certified. These engines have just been supplied to DRDO as part of the development process. So nothing new here.

 

[Sandeep]

All these movements have been happening for decades bro. Nothing has been delivered to forces for testing or has been certified. These engines have just been supplied to DRDO as part of the development process. So nothing new here.

The engine has already been tested and certified in Russia and passed with flying colours and it will be used for the stealth UCAV Ghatak drone.

 

[Boomeranger]

Good news that the Kaveri is finally moving ahead, even if it is 30+ years late. That said, if GTRE wants to take the Kaveri's thrust to 90 kN, we may well be looking at some changes to the core. In its present form at 45-48 kN, the best we can hope for is 75-ish kN. Anything higher simply isn't feasible without ruining either the fuel efficiency of the engine or the engine itself.

Dis 45KN DRY thrusts Kaveri engine is for Ghatak AURA UCAV program MAINLY, and could be used for HLFT42 trainer also perhaps so...

 

[Rajesh]

If this new engines are able to sustain the flight duration in an old Tejas for the required time then drdo can use them for our drones and also work on the Tejas engine replacement program with a 90kn thrust kaveri derivative. These engines have been developed a long time back and drdo has been refining them but they need to rework those engine design to modern standards for Tejas replacement program.

 

[Akshat]

The engine has already been tested and certified in Russia and passed with flying colours and it will be used for the stealth UCAV Ghatak drone.

Russia has not given any certificates. I have asked you a dozen times to show a single comment from Russia and you always run away. Russia has nothing to do with these lies.

 

[Vinay Rana]

Good example of public private partnership and surly we may reach our goal

 

[Sandeep]

Russia has not given any certificates. I have asked you a dozen times to show a single comment from Russia and you always run away. Russia has nothing to do with these lies.

It's passed the high altitude test and ready for production.

Aero India 2023: GTRE completes high-altitude testing of Kaveri derivative engine

India's Gas Turbine Research Establishment (GTRE) – an agency under the state-owned Defence Research and Development Organisation (DRDO) – has completed high-altitude...

www.janes.com

 

[Sandeep]

This is good news that they will test the engine on a jet. Although the dry variant will definitely be used on our stealth UCAV Ghatak drone we still need to keep researching and improving the performance of the engine.

If we want to develop a higher thrust engine we would have to make a clean brand new design based on what we've learnt from the dry Kaveri engine. We will need a brand new core that can handle the higher amount of heat and we will need to develop an after burner so we can meet the current level of thrusts from the F404 engine. Once we do that then we can use our indigenous engine when it's time to replace the F404 engine. This will boost our military industry and make us more self reliant rather than making expensive imports or foreign made engines.

 

[Akshat]

It's passed the high altitude test and ready for production.

Aero India 2023: GTRE completes high-altitude testing of Kaveri derivative engine

India's Gas Turbine Research Establishment (GTRE) – an agency under the state-owned Defence Research and Development Organisation (DRDO) – has completed high-altitude...

www.janes.com

Doesn’t contain any Russian or official source. Not even one.

 

[AK S]

Russia has not given any certificates. I have asked you a dozen times to show a single comment from Russia and you always run away. Russia has nothing to do with these lies.

You check with your French patrons. They’d certified it about 5 years back for limited flight trials on Tejas.

 

[Anant]

All these movements have been happening for decades bro. Nothing has been delivered to forces for testing or has been certified. These engines have just been supplied to DRDO as part of the development process. So nothing new here.

True, but any progress from these folks, considering their usual shenanigans, is still massive.

 

[AK S]

Dis 45KN DRY thrusts Kaveri engine is for Ghatak AURA UCAV program MAINLY, and could be used for HLFT42 trainer also perhaps so...

Thrust level is in the vicinity of 50KN with the existing core. Fine tuning will happen later.

 

[Anant]

Thrust level is in the vicinity of 50KN with the existing core. Fine tuning will happen later.

45-48 kN for now, not 50 kN. Even then, a 50 kN engine can be taken up to 80-ish kN, not 90 kN, after integrating an afterburner.

 

[Anant]

Dis 45KN DRY thrusts Kaveri engine is for Ghatak AURA UCAV program MAINLY, and could be used for HLFT42 trainer also perhaps so...

Read the article again. It mentions the possibility of substituting a 90 kN derivative on the Tejas. That said, it could, atleast in theory, be used on the HLFT-42 as well, but we shall see.

 

[bonito]

Ok so cause there is no Ghatak anywhere, we are reviving back the same shkit strategy to fir the engine with Mk1A which is also non-existent. I am afraid does DRDO know the dire need of UCAV. For God sake somebody tell them it will not be pilots in the next gen warfare it will machines.

 

[bonito]

60% is cutting edge. 90KN must be a new engine.

I wonder it we collate all the edge been cut that itself would be another cutting edge technology by itself 😃

 

[bonito]

Very Good Development, Long ago i was saying DRDO going to Fine Tune Kaveri Engine to 90 kN .

We all know that's how they retire. But do they know in what situation IAF is ?

 

[bonito]

It's passed the high altitude test and ready for production.

Aero India 2023: GTRE completes high-altitude testing of Kaveri derivative engine

India's Gas Turbine Research Establishment (GTRE) – an agency under the state-owned Defence Research and Development Organisation (DRDO) – has completed high-altitude...

www.janes.com

Pleas understand it did not undergo fly test. It only was tested at high altitude simulated environment (at ground)
Motors (CIAM) in Russia, simulating an altitude of 13,000 m (42,651 ft).

 

[Sandeep]

Doesn’t contain any Russian or official source. Not even one.

You asked for a link. I sent you one which is from a neutral source because then you would moan about partiality. Ok here's another one.

Kaveri Engine development

Kaveri Engine – Road so far Aero-engine is considered as one of the key areas for India’s aspirations of achieving self-reliance in the defence sector. It is one of the most complex technolog…

indiandefenseanalysis.wordpress.com

 

[Sandeep]

Pleas understand it did not undergo fly test. It only was tested at high altitude simulated environment (at ground)
Motors (CIAM) in Russia, simulating an altitude of 13,000 m (42,651 ft).

It underwent and passed its high altitude simulated test which includes temperature, wind, snow, rain etc. It has flown as well.

 

[Akshat]

You check with your French patrons. They’d certified it about 5 years back for limited flight trials on Tejas.

Nope, they didn’t. What they said was that it can be used, with M88 core. Kaveri as it is was useless.

 

[Akshat]

True, but any progress from these folks, considering their usual shenanigans, is still massive.

If there is an actual development, then yes, it’s a big deal. But there is nothing new happening here. This has happened in the past and we have seen the results.