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What is different in KAVERI engine

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posted on Feb, 2 2006 @ 10:00 PM

i am very keen to know what is different about the KAVERI engine and why is it taking so long to be developed by GTRE.

What is the whole fuss about it being very ambitious project and variuos private companies now helping to develop it.

posted on Feb, 4 2006 @ 02:18 AM
Hey.. welcome to ATS..
I don't know much about the KAveri but check out everything in this thread abt Indian developments..
Is "Humane" your sir name or a part of your ATS nick?

posted on Feb, 4 2006 @ 04:46 AM

Originally posted by sandeep_humane
i am very keen to know what is different about the KAVERI engine and why is it taking so long to be developed by GTRE.

There is nothing that's radically different in the GTX-35VS Kaveri from other engines (like say the GE F-404). However the Kaveri has a flat rating and is specifically designed for Indian weather conditions.

What is the whole fuss about it being very ambitious project and variuos private companies now helping to develop it.

The Kaveri is literally India's first supersonic jet engine. It is very ambitious considering the India's stsrting technology level in this aspect. The GTRE is trying to leapfrog several generations of engine design/development and metallurgy and and go directly from 1950's engine tech to 2000's engine tech.

There have been impressive strides in metallurgy by DMRL and the Kaveri will soon have the latest generation single crystal turbine blades made by powder metallurgy techniques.

Over 100 private companies are participating in the Kaveri project after the high altitude tests in Russia got screwed up. GTRE finally realised that going alone is not the way ahead and invited bids from private parties and because of this very reason, the Kaveri made impressive progress lately. Metallurgy giant Mahadini has contributed extensively to the Kaveri.

The project has been plagued by cost overruns and massive time delays - but considering the complexity of the same and the amount of funding that's available, in addition to the base from which India started the progress is impressive.

Presently only Russia, USA, UK and France have the technology to make high performance supersonic turbofans for airplanes. And this was developed through several decades of progressive development. They started off with a high base thanks to all the German technologies they imbibed and assistance from captured Nazi scientists. Seldom do any of these nations part with any of the technology. India (& China) have had do things by themselves and are catching up.

The long term aim of the GTX-35VS Kaveri project was to set up the infrastructure and facilities to make the latest generation of aircraft engines in India and IMHO that has been achieved alredy.

The GTRE and DRDO and all others now say that the Kaveri will get into and power the LCA by 2009. To help fix the problems with the Kabini core of the Kaveri speedily, an international tender is in place and the bidders include NPO Saturn, Rolls Royce, GE, Pratt and Whitney, SECMA and Klimov.

The Kaveri when ready will have a thrust of 90kN (20,000 lbs) with a Turbine entry temperature of 2000+ degee C. That would put it in the league of the latest engines of today such as the EJ-200 of the Eurofighter, M88-3 of the Rafale (still in development). GTRE has also stated that the Kaveri will be less thirsty than the upgraded F-404's. KH has also said that the Kaveri would be able to make the LCA supercruise.

[edit on 4-2-2006 by Stealth Spy]

posted on Feb, 5 2006 @ 04:55 AM
India's Kaveri fighter engine is world class : USA

New Delhi, February 5, 2006

Though India's maiden bid to develop a fighter engine has been caught in various hurdles, American experts have offered some encouragement, holding out a promise that Kaveri can be developed into a contemporary world class engine.

"We are ready to join in partnership with the Defence Research and Development Organisation (DRDO) to make Kaveri work," General William J Begert of the world's leading aircraft engine manufacturers, Pratt and Whitney, said.

DRDO scientists had kept the development of the Kaveri engine under wraps, exuding confidence that India had developed the technological edge to develop its own aircraft engine, so far confined to handful of developed countries.

American engine manufacturers had to pull out and fly in retired gas turbine engines as they, too, were intially foxed by the Indian Kaveri engine. Now they, too, believe that Kaveri is "truly a world class engine".

Here is the Kaveri engine displayed at Aero India '05
external image

The present new version has 90kN max thrust (20,000 lbs) at 2000 K TET.

More detials from a Flight International article >

The production Kaveri, with a reheat thrust of 20,200 lbs. (90kN), will be more powerful than the 17,000 lbs Snecma M88-2 now powering the twin-engined Rafale. It matches the output of the uprated M88-3.

GTRE says the version of the Kaveri will have a turbine entry temperature of 1850 degree C and single-crystal turbine blades being developed by GTRE with the Defence Metallurgical Research Laboratory.

The new variant, which India says will be at the technology level of the M88-3, will have a fan pressure ratio of 4:1 and an overall pressure ratio of 27:1. A new combustor will be shorter and lighter than the present unit.

The increased, dry thrust should allow the Tejas aircraft (which it will power) to supercruise (cruise supersonically without the use of reheat). Also under development is a thrust-vectoring nozzle, to enhance its agility, as well as a digital engine control system. The axisymmetric TV nozzle is planned to be flight tested on a later prototype. Plans are already under way for derivatives of the Kaveri : a non-afterburning version for an advanced jet trainer, a high bypass-ratio turbo fan based on the Kaveri core, as well as variants for other applications.

More ...

The Kaveri's FADEC :
external image

Cross section :
external image

Check out the Eurofighter's Rolls Royce EJ-200's stats ( ). The Kaveri will be upto the same tech level.

[edit on 5-2-2006 by Stealth Spy]

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