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LCA Tejas Multirole Aircraft

Discussion in 'Indian Air Force' started by Dark_Prince, Apr 14, 2010.

  1. Ankit Kumar 001

    Ankit Kumar 001 Major Technical Analyst

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    Well the RFP issued had a due date of 31st March.
    The author seems to live in a parallel universe.
     
  2. Abingdonboy

    Abingdonboy Major Technical Analyst

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    SP-4 flies, will be handed over to 45 SQN in the next 2 weeks:

    [​IMG]
     
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  3. Grevion

    Grevion Professional Think Troll ELITE MEMBER

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    Better late then never.:evilgrin:
     
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  4. Abingdonboy

    Abingdonboy Major Technical Analyst

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    Only a few weeks late.
     
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  5. sunny6611

    sunny6611 Lieutenant FULL MEMBER

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    what is the cost of tejas per flight hour ?
     
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  6. somedude

    somedude Captain FULL MEMBER

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    Whatever it currently is, it's higher than it'll be once the type is fully standardized and introduced in large numbers.
     
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  7. Sathya

    Sathya Lieutenant FULL MEMBER

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    That yellow part in the rear fuselage is the new high tempered composite ?
     
  8. Flyboy!

    Flyboy! Lieutenant FULL MEMBER

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    It's a paint to prevent galvanic corrosion
     
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  9. lca-fan

    lca-fan Major SENIOR MEMBER

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    IDN TAKE: WHY TEJAS NAVY SHOULD BE PART OF THE INDIAN NAVY?
    [​IMG]
    The Air Force variant of TEJAS Combat Jet
    by Karan Khajuria


    Recently Indian Navy Chief, Admiral Sunil Lanba caused a flutter in the media by stating that TEJAS was “not yet up to the mark” and Navy would seek Aircraft from a foreign vendor. It’s not the first time that we are seeing our armed forces showing more interest to acquire imported weapons rather than domestically produced. We have already seen this in projects like Arjun MBT, TEJAS (IAF), Aakash Air defense Missile System and now TEJAS Navy. Our Armed forces have been less supportive of the Critical Indigenous projects.

    The other day I read an article which says that ADA should focus on AMCA rather than TEJAS Mk-2 which should be seen as a mere Technology demonstrator which is in conjunction with Indian Navy’s current stand on this project. I would like to counter this opinion with the help of following points.
    [​IMG]
    The most significant point that I observed was regarding the capabilities of TEJAS Mk-2 and its performance. The article says that “the extra thrust provided by the new engine would be neutralized by the extra fuel consumption and weight of the new engine. This is sort of a zero-sum game and would not give TEJAS Mk-2 much advantage over the current Technology Demonstrator”. Since TEJAS Mk-2 is most likely to be fitted with F414-GE-INS6 power plant which is more efficient when compared to its previous versions. Now comparing it to GE F-404 which powers TEJAS Mk-1 the dry weight difference between two engines is merely 163lbs. Given the use of advanced materials in GE F-414 and efficiency of this engine combined with greater thrust, the improvement in TEJAS Mk-2’s performance will be quite notable. The engine has an improved thrust to weight ratio of 9:1 and 3-4 % cruise specific fuel consumption improvement over F-404. This means that the extra thrust doesn’t come merely at the cost of additional fuel consumption. According to ADA the Mk-2 version is likely to have major improvements over TEJAS Mk-1 including dead weight elimination and increasing the payload by 1,000 kg to 5,000 kg which is greater or roughly comparable to Sea Harriers which TEJAS was meant to replace in the first place.
    When it comes to the fate of this project, the problem doesn’t only lie with our state-owned design agencies like ADA etc ,which are mostly blamed for missing deadlines, it has also got something to do with our armed forces. According to a report published in DNA in 2010, The then chief of the Naval Staff Admiral Nirmal Verma had expressed firm requirement of 50 TEJAS to replace the aging sea Harrier fleet of the IN. Navy was always aware that NP-1 and NP-2 would be technology demonstrators rather than the actual platforms. Moreover CCS had sanctioned the development of TEJAS for navy in 2003 and in 2009 it gave go-ahead to the development of TEJAS Mk-2. After all these years of R&D , We have a new navy chief who, all of a sudden, feels that TEJAS is overweight and won’t meet Indian navy’s requirements even though the carrier trials of TD is yet to occur and final product is still under development. The question here is that why Navy couldn’t identify and outline its actual requirements during all these years? One can’t expect a light category fighter to carry a payload comparable to a Medium class fighter. TEJAS was always meant as a light aircraft and Tejas Mk 2 perfectly meets the payload requirement of it’s class.
    As per IN’s new RFI for 57 carrier based fighters there is no clear guideline whether the fighter should be single or twin engine. Moreover, there is no mention of whether it should feature CATOBAR or STOBAR mechanism. Instead navy has expressed desire for a fighter which can incorporate both systems without any major changes. Even it is not clear whether these aircraft will be based on INS Vishal because the specifications of INS Vishal are still not confirmed even as we speak. The category of Aircraft Carrier IN operates at present like INS Vikramaditya and INS Vikrant, which it is supposed to operate in near future, are quite small with limited deck area when compared to USN’s Nimitz Class or even PLAN’s Liaoning. It would be better to have a mix of heavy MiG-29K and Light TEJASs on these carries given the poor availability of MiG-29k. Not to mention TEJASs were specifically designed as STOBAR aircraft. It is also important to note that Saab’s Gripen is also part of this Competition which interestingly is a single engine fighter.
    In the light of above points I firmly believe that rather than sinking an ambitious project like this would not only break the enthusiasm and morale of young scientists and engineers who have put in every bit in this complex project but also have a bad effect on our aerospace industry. Navy should order 20-25 odd aircraft of Mk-2 class which is half of its previous commitment. This would not only boost the morale of development agencies but also give a push to indigenous development and also save the cost. As far as AMCA is concerned it is quite far from reality and we can’t take half blunt lessons from one project to another big project. We need to setup a benchmark for making a transition to the next level and there can’t be any better benchmark than successful operation of TEJAS Mk-2 from Indian Navy’s Aircraft carriers. India has to manufacture it’s own weapons, aircraft and ships to set up a strong defense manufacturing base and our armed forces have to play a vital role in this. We can learn from rival China which has transformed itself into a weapon exporter. India is still the largest weapons importer in the world and this is not, by any means, a good sign for an aspiring superpower.

    Karan Khajuria is a defense analyst and this piece was written exclusively for IDN. Views expressed are of the author and do not necessarily reflect the views of IDN

    http://www.indiandefensenews.in/2017/03/idn-take-why-tejas-navy-should-be-part.html
     
  10. zebra7

    zebra7 Captain FULL MEMBER

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    Dear Karan, you won't have written this article if you had tried to understand, that the statement of the IN chief, which you and many like you are trying to quote is for the Mk1 version of the Naval LCA, which is actually developed from the twin seat trainer version of the LCA powered by GE 404 engine. There is no MK2 yet, so its rejection if out of question, and is in the development stage, for which IN is fully supporting, and is paying its 25 percentage of the development charge. All your calculation looks hillarious in this article, and take of wt increase from 1000 to 5000 is the operation of the speculation, and is not funny as far as I am concern.

    You should write an article on the DNA, that why the authors, who have zero knowledge of military and strategy, and who lack time, effort and wisdom to research on the technology, strategy, interview, test result, should refrain from trying to write an article on such matter, and why shouldn't they make a mokery of themself.
     
  11. Agent_47

    Agent_47 Admin - Blog Staff Member MODERATOR

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    Speaker: Dr. Shyam Chetty Former Director, NAL
    Subject : Glimpses into the Exciting World of Modern Aircraft Design
     
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  12. lca-fan

    lca-fan Major SENIOR MEMBER

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    New video from LCA manufacturing unit.

     
  13. Abingdonboy

    Abingdonboy Major Technical Analyst

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  14. Sathya

    Sathya Lieutenant FULL MEMBER

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    Front two white antenna in front of canopy, is it new addition?:blink:
     
  15. HariPrasad

    HariPrasad Lieutenant FULL MEMBER

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    My suggestion for LCA Navy.

    Weight <= 6600 KG empty.
    Engine: Twine HAL engine with 35 KN Dry and 57.5 KN wet.

    this will make tejas fully comparable to navy. A practicla approach is needed. They are unwilling to build what navy wants but rather try to sell what they have. This is a very bad marketing technique.
     

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