Kaveri Engine: Latest Developments & Discussion

They have to wait for months to get a flying test bed. Need to go places for testing engines at supersonic speeds etc. If GTRE is stuck on some issues...let a consortium of academia and industry come forward and develop it in parallel or jointly. Our total spending on kaveri is not even 500million dollars. Its needs high tech research needs lots of talent and resources. It would have been prudent if we would have started with engines from 25 kn, then innext 5-6 years prigressed to 50-60 kn and then in next 5-6 years 90-100kn engine. This would have developed lot of scientific and industrial talent for us.
Look at China, ACAE was funded 7.5 billion usd in 2016. Their yearly R&d budget has been 300million on top of the seed fund. Despite this they have limited sucess. Aero engine maket in India is huge both military and civilian. Western countries are minting billions from it. As it grows they will mint 10s and 100s of billions from us. Why would they lose this for few billion dollar of tie up?. They would only give us the tech if we are nearing success.
It was GTRE and DRDO who came up with Kaveri and the budget. So no one else can be blamed for it. They were given more than what they could utilize so more funds simply wouldn’t have mattered. And what is the point of blaming ‘waiting for months’ when you are talking about a project that went on for 3 decades? Months is nothing in front of it.
 
Whatever they asked for was given
Buddy underestimates Indian babudom. Government departments do not ask budget. Allocation is done as per estimates.

If they were given what they asked, they would have test beds and wind tunnels and ISRO would have space station by now.
 
Buddy underestimates Indian babudom. Government departments do not ask budget. Allocation is done as per estimates.

If they were given what they asked, they would have test beds and wind tunnels and ISRO would have space station by now.
Buddy underestimates the lies of DRDO. DRDo gives projections for funds required for every project. MoD sanctioned that, and then increased it every time more funds were asked.

Giving test facilities is pointless when you have no engine. It’s not like having a FTB will give you an engine when your engine itself is blasting off and throwing ninja blades. Still, GoI gave funds for testing it as much as needed abroad.
 

GTRE Prepares for Flight Trials of Upgraded Dry Kaveri with Afterburner in LCA-Tejas Mk1​

The Gas Turbine Research Establishment (GTRE), a division of India's Defence Research and Development Organisation (DRDO), has received a new batch of Dry Kaveri engines, signaling a significant advancement in the indigenous development of fighter jet engines. These engines are set to undergo rigorous testing and certification processes, with the ultimate goal of integration into India's homegrown fighter aircraft.

This development marks a pivotal moment for the Dry Kaveri engine program, which has been under development for several years. After encountering delays in the past, the project now appears to be gaining momentum, with a renewed focus on achieving self-reliance in critical aerospace technology.

According to credible sources, the GTRE intends to integrate an afterburner section into the engine, enhancing its thrust capabilities. This modified engine will then be fitted onto an older Limited Series Production (LSP) LCA-Tejas Mk1 aircraft for crucial flight testing.

These flight trials, expected to commence within the next two years, will primarily focus on validating the engine's ability to generate 73 kilonewtons (kN) of thrust. The successful achievement of this thrust level is considered a critical milestone for the DRDO in its pursuit of developing a new class of engine.

The long-term vision for the Dry Kaveri engine program is to create a 90kN class engine that can potentially replace the F-404 engine currently powering the Tejas Mk1A fighter jets. The development of such an indigenous engine would be a major breakthrough for India, as it would significantly reduce the country's dependence on foreign suppliers for critical fighter jet components.

Should the flight trials prove successful and the Dry Kaveri engine meets the necessary performance and safety standards, the DRDO aims to position the 90kN engine as a viable alternative for the F-404 engines when the Tejas Mk1A fleet undergoes engine upgrades in the future.
 
The big question is it 90kn or a 73kn wet thrust engine. The article is confused on this point.

Further, nice to know first batch of engines supplied.
 
Very Good Development, Long ago i was saying DRDO going to Fine Tune Kaveri Engine to 90 kN .
 
France should extend tech support to achieve goal for a 90+ kn engine ! We should co relate this with 114+ Rafale F5 under MRFA !
 
73Kn with current afterburner, later development improved afterburner with 90Kn.
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.
 
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.
 
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.
 
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.
 
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.
 
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...
 
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.
 
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.
 
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.
 
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.
 
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.
 
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.
 
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.
 
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.
 
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.
 
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.
 

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