Kaveri Engine

[MonaLazy]

GE 414 EPE with significantly more power has same dimensions as GE414 IN 6. It has 1% better fuel efficiency. If power comes by improving design and metallurgy, it is possible to omprove power and fuel efficiency together.

That's exactly what- once the improved design and metallurgy is realised- add more stages with adequate cooling for an engine bettering F135/XF-9 specs which are both 1m longer than the 4m 125KN effort.

 

[SimplyIndian]

Air offensive against cheen needs longer range, as their industrial centers lies in east. Its good to have options, can't expect fighting will be limited to tibet.

But our real baba yaga lies in middle of Indian Ocean, diego garcia.


But why duplicate efforts with our non existent r&d budget.


Achieving above mentioned variants will be a lot easier if we focus on a bigger diameter engine.

The most puzzling thing, is it will be similar development cost for bigger diameter engine. Then why not.

I tried to find any downside with this approach (bigger diameter) but i don't see any. It will be most welcome if someone can point out.

Bigger engine is doable and provides 130kn thrust as well if india invest in doubling the size of kaveri engine. But the downside is we will have bigger AF, high surface area. Or 2nd approach use two current kaveri engine get 150kn thrust and build AF. Both will result in AF which IAF wont buy. There are reasons to have standard size of engine. We should invest in right direction, not in workarounds. Thats my humble opinion.

 

[pipebomb]

Bigger engine is doable and provides 130kn thrust as well if india invest in doubling the size of kaveri engine. But the downside is we will have bigger AF, high surface area. Or 2nd approach use two current kaveri engine get 150kn thrust and build AF. Both will result in AF which IAF wont buy. There are reasons to have standard size of engine. We should invest in right direction, not in workarounds. Thats my humble opinion.

Bigger engine would provide close to 130kn of dry thrust not wet. Would allow us to pose hi-low mix like su57 & su75

 

[anirban8]

So from what I understood from reading the threads, we have been able to successfully able to demonstrate usable dry thrust Kaveri. Is there any reason we haven't seen this engine being used in some subsonic applications? Like bombers whose engines generally are made from the traditional engines without the hot core??

 

[Lonewolf]

So from what I understood from reading the threads, we have been able to successfully able to demonstrate usable dry thrust Kaveri. Is there any reason we haven't seen this engine being used in some subsonic applications? Like bombers whose engines generally are made from the traditional engines without the hot core??

Ghatak ????

 

[anirban8]

Ghatak ????

Is that a bomber?? I thought it was a stealth drone. But yeah I forgot we are using Kaveri, our dry engine must have been perfected then.

 

[Lonewolf]

Is that a bomber?? I thought it was a stealth drone. But yeah I forgot we are using Kaveri, our dry engine must have been perfected then.

Bomber ucav .

 

[MonaLazy]

Lack of testing facility delays Kaveri dry engine, meant to power India’s first stealth unmanned combat aerial vehicle

RAVI SHARMA
Published : March 18, 2022 20:25 IST

The Kaveri dry engine fitted to an IL-76 Russian aircraft during a previous flight test. Photo: Courtesy: Indian Defence News




India’s dependence on Russia for a high-altitude flight test bed is causing a further delay to the flight-testing of the Kaveri dry engine. A derivative of the bedeviled, indigenous Kaveri military gas turbine aero engine that has been under development at the Defence Research and Development Organisation’s (DRDO’s) Gas Turbine Research Establishment (GTRE) since 1989, the Kaveri dry engine is meant to power India’s first stealth, unmanned combat aerial vehicle (UCAV), the Ghatak.
Sources told Frontline that scientists and engineers at GTRE were ready with the engine for its eagerly awaited simulated high altitude test on board a modified Ilyushin (IL)-76 fixed-wing, four-engine turbofan aircraft which is used as a flying test bed (FTB).
Sources also disclosed that the government’s approval to ferry the Kaveri dry engine to Russia’s Gromov Flight Research Institute near Moscow, where the modified IL-76 is based, for the engine’s simulated flight tests was a formality. GTRE had hoped to complete all tests by 2024-25 and commence limited series production by 2025-26. The production agency is likely to be public sector aviation major Hindustan Aeronautics Limited.
But, with Russia caught up in a conflict with Ukraine, the simulated high altitude flight test will take longer to fructify. The flight test had initially been delayed because of the COVID-19 pandemic.
For several years now, scientists and designers have been pushing for the acquisition of an Il-76 aircraft which will be used purely as an aero engine flight test bed.
India, which hopes to join the handful of global aviation majors who have mastered gas turbine aero engine technology, does not even possess a fully functional wind tunnel facility that is essential to study aerodynamic characteristics. Such a facility can simulate and test an engine designed to work at 40,000 to 50,000 feet above the ground and will give designers the freedom to scale up or down, test and validate the hundreds of components.
Scientists at DRDO confessed that the lack of such a facility means that an engine being indigenously designed has to be carted to Russia or elsewhere, making it a time-consuming process.
Since the 1990s, the Kaveri dry engine has been taken to Russia several times to undergo testing.

Lack of testing facility delays Kaveri dry engine, meant to power India’s first stealth unmanned combat aerial vehicle

Once the Kaveri Dry engine clears these simulated high altitude tests, GTRE will position the engine in the flying test bed (FTB), which is a modified Ilyushin (Il)-76 fixed-wing, four-engine turbofan aircraft.

frontline.thehindu.com

.. the only thing to probably take some heart from is that this time around the delay is not because of DRDO- but external factors.

 

[Neeraj Mathur]

always wanted to know
if we decide to get our own engine test-bed which aircraft can we use for it and what all modification will it require.

 

[fire starter]

Development Of Nickel-Base Superalloy & Components For Aeroengine Applications.

Development Of Nickel-Base Superalloy & Components For Aeroengine Applications

DRDO is currently working to expedite and ensure that this crucial technology is type certified towards achieving self-reliance. The technology for manufacturing the bar stock and component has been designed in such a way that it can be implemented by any forging industry having suitable...

www.iadb.in

 

[THESIS THORON]

Lack of testing facility delays Kaveri dry engine, meant to power India’s first stealth unmanned combat aerial vehicle

RAVI SHARMA
Published : March 18, 2022 20:25 IST

The Kaveri dry engine fitted to an IL-76 Russian aircraft during a previous flight test. Photo: Courtesy: Indian Defence News




India’s dependence on Russia for a high-altitude flight test bed is causing a further delay to the flight-testing of the Kaveri dry engine. A derivative of the bedeviled, indigenous Kaveri military gas turbine aero engine that has been under development at the Defence Research and Development Organisation’s (DRDO’s) Gas Turbine Research Establishment (GTRE) since 1989, the Kaveri dry engine is meant to power India’s first stealth, unmanned combat aerial vehicle (UCAV), the Ghatak.
Sources told Frontline that scientists and engineers at GTRE were ready with the engine for its eagerly awaited simulated high altitude test on board a modified Ilyushin (IL)-76 fixed-wing, four-engine turbofan aircraft which is used as a flying test bed (FTB).
Sources also disclosed that the government’s approval to ferry the Kaveri dry engine to Russia’s Gromov Flight Research Institute near Moscow, where the modified IL-76 is based, for the engine’s simulated flight tests was a formality. GTRE had hoped to complete all tests by 2024-25 and commence limited series production by 2025-26. The production agency is likely to be public sector aviation major Hindustan Aeronautics Limited.
But, with Russia caught up in a conflict with Ukraine, the simulated high altitude flight test will take longer to fructify. The flight test had initially been delayed because of the COVID-19 pandemic.
For several years now, scientists and designers have been pushing for the acquisition of an Il-76 aircraft which will be used purely as an aero engine flight test bed.
India, which hopes to join the handful of global aviation majors who have mastered gas turbine aero engine technology, does not even possess a fully functional wind tunnel facility that is essential to study aerodynamic characteristics. Such a facility can simulate and test an engine designed to work at 40,000 to 50,000 feet above the ground and will give designers the freedom to scale up or down, test and validate the hundreds of components.
Scientists at DRDO confessed that the lack of such a facility means that an engine being indigenously designed has to be carted to Russia or elsewhere, making it a time-consuming process.
Since the 1990s, the Kaveri dry engine has been taken to Russia several times to undergo testing.

Lack of testing facility delays Kaveri dry engine, meant to power India’s first stealth unmanned combat aerial vehicle

Once the Kaveri Dry engine clears these simulated high altitude tests, GTRE will position the engine in the flying test bed (FTB), which is a modified Ilyushin (Il)-76 fixed-wing, four-engine turbofan aircraft.

frontline.thehindu.com

.. the only thing to probably take some heart from is that this time around the delay is not because of DRDO- but external factors.

I was hoping that atleast this project will come in time .

we had enough time to order a ftb but no one gave a sheit, and now whole program is suffering

 

[samsaptaka]

India is viewed as a country so lacking in backbone that it will not display dissent to emperor Putin,

Oh please...you have no moral right to lecture us on what or who is right, not after you have looted us and genocided us. Don't you feel ashamed lecturing us on what is right ? Feeling bad that the erstwhile natives are no longer with the crown and queen ? ha ! Defending the indefensible indeed ! Bharath just abstaining from voting is causing so much ass burn to the west, just imagine if we had indeed decided to support Putin...anyway this is OT

 

[fire starter]

 

[Concard]

Instead of depending on Russia for high altitude testing why not modify SU-30 MKI or Mig-29 to carry kaveri engine and use it as a test bed? Is it because it cannot fit in those jets?

 

[no smoking]

Instead of depending on Russia for high altitude testing why not modify SU-30 MKI or Mig-29 to carry kaveri engine and use it as a test bed? Is it because it cannot fit in those jets?

No, it can be fit. But only those big planes have room to accommodate those testing equipment and sensors to monitor the real-time running of the engine.

 

[lcafanboy]

 

[Dark Sorrow]

Instead of depending on Russia for high altitude testing why not modify SU-30 MKI or Mig-29 to carry kaveri engine and use it as a test bed? Is it because it cannot fit in those jets?

Weight of aircraft and the thrust produced by primary engines must be able to completely outperform the test engine capability. Neither SU-30 MKI or Mig-29 provide such capability.

Adding a test engine will make SU-30 MKI or Mig-29 completely unstable and will also poison the test. Large aircarft due to their sheer weight and massively powerful primary engines counter this.

You also need real-estate for sensor and other test instruments and technicians to operate these instruments. Big aircraft have this.

 

[Concard]

Weight of aircraft and the thrust produced by primary engines must be able to completely outperform the test engine capability. Neither SU-30 MKI or Mig-29 provide such capability.

Adding a test engine will make SU-30 MKI or Mig-29 completely unstable and will also poison the test. Large aircarft due to their sheer weight and massively powerful primary engines counter this.

You also need real-estate for sensor and other test instruments and technicians to operate these instruments. Big aircraft have this.

So why can't we modify some Air India passenger jet or even Embraer Jet which we have in our inventory?

 

[Dark Sorrow]

So why can't we modify some Air India passenger jet or even Embraer Jet which we have in our inventory?

Embraer Jet will be insufficient.
We can modify air-India jet but it will require financial backing and political will. It comes to cost benefit analysis.
How many engines you plan to test against cost incurred to build such test platform?
It has more to do with financial and political will.
Also we have to use our resource efficiently.

 

[Concard]

Embraer Jet will be insufficient.
We can modify air-India jet but it will require financial backing and political will. It comes to cost benefit analysis.
How many engines you plan to test against cost incurred to build such test platform?
It has more to do with financial and political will.
Also we have to use our resource efficiently.

How much does it cost approximately? I mean it can't be that expensive. If we have to become self reliant in Jet Engine technology we have to have a test bed. That test bed can also be utilized for high bypass engines tests too when we start building transport aircraft on our own.