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36 Comments

  1. 1

    sumit..m..a..rule..!.so..follow..me

    good news but shiv i have an query that: kaveri is power full enough to fit into LCA mk-ii i mean with increasing demand of IAF (payload) . they are calling GE404 unpowered , nd butin EJ200 or GE414 wat well thrust specification of kaveri..

    Reply
  2. 2

    Anonymous

    The entire Kaveri program has been misconceptualized from the start. There is no room for turbojets today on fighters, they should have built a turbofan with approx. 0.9 BPR.

    As it is the shaft can barely survive the loads of a turbofan, putting the load of a bigger turbofan up front will only lead to failures. We have not even matched the Russians and their crude engines, forget western engines by GE.

    Le Sigh. Cancel the program, let LCA get GE engines, and start afresh by cloning the GE engine chosen to power LCA. It is the only way this program can be salvaged, going further on a wrong route (turbojet) is not progress.

    Reply
  3. 3

    Anonymous

    all that is fine but which foreign engine will be selected till the kaveri becomes operational??? and also when will we see a drawing or a photo of the LCA mk2 ??? ANYONE ANY IDEA

    Reply
  4. 4

    Anonymous

    Great news!

    Reply
  5. 5

    Anonymous

    That means kaveri might be fitted into one of TD of LCA after october tests….?????

    Reply
  6. 6

    Anonymous

    fingers crossed 🙂
    have a feeling this is gonna work

    Reply
  7. 7

    AK

    GTRE should stop pulling wool on the Indian public's eye. Kaveri is a flop show, the only reason it survives is because some PSU unions will go on a strike as soon as it is cancelled. Let's face it, Kaveri has run it's course, it's time to say good bye to it.

    Reply
  8. 8

    Anonymous

    Last i heard, the Kabini core has been thrown out in favour of the Snecma M-88 core.

    Three very important question is-Is the core the Kabini or the M-88? What are the specific thrust figures? Has the defect of the Kaveri around "throwing blades" been removed?

    If the core is Kabini and we realize 53 KN Dry thrust/80KN Afterburner thrust, there is salvation on one ground-at least we have an indigenous engine although this thrust rating will make it underpowered for the LCA.

    If the core is the Snecma core and the thrust is 53 (Dry)/80 (wet), god bless us. We have developed a turbojet (described as a leaky turbofan in today's world) with no use after 20 years of pouring money into it.

    However, if the core is still the Kabini and the thrust rating has improved to 60 KN+(Dry)/ 90 KN+ (Afterburner), it can be used for the LCA and we can always develop a new version (turbofan) for the MCA.

    Anyone with thrust rating information on the Kaveri? Please share.

    Reply
  9. 9

    Anonymous

    @Anonymous 5:10
    Kaveri is a after-burning TurboFan engine. Jet-age was long over. I agree with this report, material technology base in our country is lacking. Nickel and Titanium alloys are needed,hmmmm. The report does not specify any thing on Single Crystal Blades and directional growth of these crystals. Wounder f they have mastered or not yet.

    Reply
  10. 10

    Anonymous

    great news …….

    Reply
  11. 11

    Anonymous

    Who said that turbo fans are not used on modern military aircrafts Us A-10 and F-22 Raptor are using it, I would say Indian scientists have fore thought, wait and see once it succeeds it would be a win win situation.

    Reply
  12. 12

    Rahul

    @ Anon 5.10PM
    Dude who told you that GTRE-Kaveri is Turbojet ? Why don't you people just do the minimum research before typing like internet ninjas.
    GTRE-Kaveri is a turbofan write from its inception.

    Reply
  13. 13

    Mr. Ra

    That is an encouraging news.

    If it is a technically sound and cost effective opinion, I still think that Kaveri can be used on a lighter version of Tejas, equipped only with missiles for point defense and other limited but crisp operations i.e. a truly lightweight fighter.

    Reply
  14. 14

    Anonymous

    There goes now the Rahul-RATshaker bashing Anon-510.
    RATshaker's are always looking to rant on DODO-phobes.

    Reply
  15. 15

    Anonymous

    @Anonymous 7:49

    I had the same question too. Everything on kaberi stopped at Single crystal blades.

    GTRE was expecting Snecma or russians to help them in this technology.

    Is this technology now acquired or GTRE is now looking to bypass this and taking risk of future engine-failures

    Reply
  16. 16

    Anonymous

    My hope is that there is a LCA with a kaveri totally hooked up to it, and ready to go as soon the team says ok in Russia.

    Note to Shiv Aroor. I think your comment section is being over-run by a bunch of stinky pumsys from across the border and other places. A lot of these nasty comments are ment to degrade our people and our scientists and to stop our progress.

    Reply
  17. 17

    sam

    Shiv, plz plz specify weather it has single crystal tech.

    Reply
  18. 18

    Gautam

    Congratulations for the GTRE on finally reaching the testing phase, but frankly it's too little, too late. GTRE's delays, for all the excuses they offer, are in large part their own responsibility and lest they exhaust all their remaining goodwill they should cease their attempts to further delay the LCA(by stopping the selection of engine for the Tejas mk.2).

    As for the Kaveri's performance, it is a relatively basic engine by modern standards. It may have higher thrust rating than a few of its foreign analogues, but one must keep in mind that there are many, many technical factors in engine performance besides just thrust. The MiG-35 was (apparently) removed from the MMRCA contest because its uprated RD-33MK engines underperformed at higher altitudes. The Chinese WS10 indigenous engine was rejected in favour of the Russian AL31F for powering the J-10 because it had higher thrust but also took longer to accelerate. Such factors can only properly be evaluated once the Kaveri is finally integrated on to the Tejas airframe for testing.

    Reply
  19. 19

    Anonymous

    Every one wants to do things their own ways, in own style, to their own convenience and to their advantage. that is true for individuals as also for organisations to certain extent.

    Why can't we B***** Indians get together and find a way how to do and what to do?

    DRDO thinks Forces should do things their way, PSU think Forces are their slave customers, MoD thinks every one should follow what they say, Forces think they have a job to do and things should meet their requirement.

    Every one is right and wrong, Every one is doing their bit. But then who is the one not doing his bit..???

    I think it is MoD Baubu !! I think that is because he has no idea whatsoever what to do> he only does Babugiri and nothing else..

    Reply
  20. 20

    Shiv Aroor

    No single-crystal technology on the Kaveri yet.

    Reply
  21. 21

    Sardar Ram Singh porkychinki farker

    heard? and remember? what happened to the Arjun Tank??? It was rejected and rejected and rejected and now its better than the T90s. In the same way the Tejas and the Kaveri Engine, it will be rejected and made fun of but finally thanks to the scientists and Shiv Aroor, and all your and our comments and encouragement and discouragement the things will improve. In fact i believe Indians are so Indian that they will not allow non Indians to spoil India. Bharat Mahan hai

    Reply
  22. 22

    Jith

    I personally believe that there are some @crroked@ western lovers commenting here on this blog.

    The moment something good in Indian defense come in, they start criticising, at the same time having a soft speak on western failures.

    So i really do suggest u to filter the comments and publish the ones which is the "best" for Indian defense, i guess the sole purpose of this blog is that. I am not saying that only positive comments should be publish, but always u could avoid "pointless" harsh comments.

    Please Shiv, do keep an eye

    Reply
  23. 23

    Spirit of Exuberance

    Its a good news. We hope that the engine passes all tests and become a base engine for all the future Jet Engines to be developed in India. There are lots of questions regarding single crystal blade technology not mastered. But let me share with you all that it has been years that numerous foundaries in India doing this. We shall invite private Indian firms to participate and if needed only consultancy of Western Manufacturer. Just as we have got the news of involvement of our premier education institutes in the development of AURA, we shall also take their help in this programme. There is sufficient expertise in our country, need is to tap it.

    Reply
  24. 24

    Karthik Soundarajan

    Thank You very much for this excellent wirte up shiv.

    I am hoping the success of this would push us in the league of Boeing,Airbus and Pratt&Whitney, but as you can see in the comment section, It still leaves many questions unanswered. The over weight issue and the dry thrust, it was meant to be flat rated engine but with only 52kN can they afford to make it flat rated compared to 60kN of the Ej-200.

    We would still like to see an "Future Weapons" type documentary on it! Your documentary on Arjun MBT is the best so far and i hope a similar one is done for LCA and Kaveri.

    Thanks.

    Reply
  25. 25

    Anonymous

    Great news.

    Reply
  26. 26

    A PATRIOT

    Jith, everyone who criticizes DODO and other PSUs arent pakis or america lovers. You RATshakers seem to think if you dont love the PSU boys you become "unpatriotic". What we want is progress in technology which comes through privatisation – not the babustan that runs our country.

    So keep your RATshaker thoughts to yourself

    Reply
  27. 27

    A PATRIOT

    Jith, everyone who criticizes DODO and other PSUs arent pakis or america lovers. You RATshakers seem to think if you dont love the PSU boys you become "unpatriotic". What we want is progress in technology which comes through privatisation – not the babustan that runs our country.

    So keep your RATshaker thoughts to yourself

    Reply
  28. 28

    Patriot

    Jith, everyone who criticizes DODO and other PSUs arent pakis or america lovers. You RATshakers seem to think if you dont love the PSU boys you become "unpatriotic". What we want is progress in technology which comes through privatisation – not the babustan that runs our country.

    So keep your RATshaker thoughts to yourself

    Reply
  29. 29

    amit

    shiv ji
    hardly any news about the army or navy.
    IS THIS SOME AVIATION WEBSITE OR DEFENCE WEBSITE ?????? i have my doubts.plz ab toh raham karo MMRCA deal se sab bore ho chuke hai.post something new.
    To all MMRCA buffs – GET A LIFE .
    MMRCA se zyada important hamare army fauji hai.

    Reply
  30. 30

    Gautam

    Only those who have nothing to contribute but blind jingoism scream 'Ah! xyz-lover!' whenever they read something they don't like.

    Reply
  31. 31

    P.K.Chaudhuri

    Sir.
    It is a very good news. GTRE must become more aggressive. All successes achieved so far must be converted into commercial success. High pressure blades and vanes must be manufactured for electricity generating Gas Turbines and sold to companies like ABB, Siemens, BHEL etc.

    GTRE/DRDO/HAL should contribute to purchase a IL-76 aircraft and use the same for testing aero-engines.

    Incentives like tax break etc. must be provided to all those companies who develop manufacturing infrastructure for such critical componnts.

    As soon as the subject trial is completed, at least two existing tejas must be fitted with these engines and regular trials for further development of the engine must be carried out.

    It is equally important to manufacture more number of Kaveri marine engines and put them on actual field trials. This will expedite the Kaveri development program.

    P.K.Chaudhuri.

    Reply
  32. 32

    Anonymous

    @7:29..

    53 KN Dry thrust/80KN – 60 KN+(Dry)/ 90 KN+ (Afterburner)

    Man/dude how you came to 50% increase in thrust ratio from dry to wet?

    For example Pratt & Whitney J58: Maximum thrust: 34,000 pounds-force (150 kN) (wet), 25,000 pounds-force (110 kN) (dry)

    Reply
  33. 33

    Jith

    @ Patriot 5:33PM

    Hello friend,

    I have clearly stated my point and i am never against any negative comments that has points to prove and has got direction.

    Reply
  34. 34

    Anonymous

    @1.38 AM

    Nearly all turbofan engines have a 50% increase in wet thrust compared to dry thrust

    RD 33: 50 KN (Dry)/81 KN (Wet)
    M 88: 50 KN (Dry)/75 KN (Wet)
    EJ 200: 60 KN (Dry)/ 90 KN (Wet)
    F404: 48.9 KN (Dry)/ 78.7 (Wet)

    If you note, these engines span US, French, Russian & European manufacturers.

    The example you gave (J-58) is for a hybrid turbo-jet/ramjet, NOT a turbofan.

    And yes, please know your stuff before speaking.

    Reply
  35. 35

    Anonymous

    @ 8:00 PM

    Check out F100-PW-220….

    23,770 pounds of thrust with the afterburner (“wet”) and 14,590 pounds of thrust with the afterburner turned off (“dry”)

    So its 65 kN dry and 106 kN wet…..

    Its 60 percent…..well in this case……so yr 50% theory upward difference goes out through the window….

    Reply
  36. 36

    moorthy

    this not program to manufacture the bolt , this is the misson to bulit a engine first time, without a experience in this field by the country in developing nation, so it may take time , but last every indian will proud for that, my best wishes to persons in the program , vanthey matharam

    Reply

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