ADA Tejas (LCA) News and Discussions

Which role suits LCA 'Tejas' more than others from following options?

  • Interceptor-Defend Skies from Intruders.

    Votes: 342 51.3%
  • Airsuperiority-Complete control of the skies.

    Votes: 17 2.5%
  • Strike-Attack deep into enemy zone.

    Votes: 24 3.6%
  • Multirole-Perform multiple roles.

    Votes: 284 42.6%

  • Total voters
    667
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ersakthivel

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It seems there is a misconception that Kaveri is replacing F-404 and F-414. The fact is GTRE is only bringing K-10/XX version for certification by mating it with a Tejas. Once certified GTRE will them move towards developing a set-only version for GHATAK UCAV. But as of now I don't see GTRE taking up development of any 98-110 version. And untill a Kaveri version is mature enough to be put as standard turbofan in Tejas F-404 is staying.

I just hope when a Tejas is due for engine replacement that is after flying for 4000 hrs a light weight Kaveri with +95KN thrust, better SFC and TVC(if needed) is ready and matured for 're-equipping.
IAF tejas mk1As can easily be reengined with GTRE SNECMA kaveri version,
You shoud note that the present 70 plus Kn wet thrust , 52 kn dry thrust is being derived from non SCB kaveri versions
With production tech for SCBs transferred to HAL by DRML we can expect an uprated kaveri
 

ersakthivel

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GTRE won't be using Tejas as a test bird! What they are aiming is mating of K-10/XX to prove it's performance on actual platform/fighter.

Earlier plan was to loan a Mig-29 from IAF for proving it's performance before moving on to Tejas. But after apparent denial by IAF they are going straight to Tejas. May SNEMECA's involvement is helping with confidence factor for both IAF and GTRE. In any case a positive development. And will lay much needed foundation. I only hope they highter thrust version of K-10 in range of 100-110 KN for MK-2 engine replacement.
Once kaveri is certified with Snecma JV IAF cant say no to Mig-29 flying bed request.
A 90 Kn kaveri will be a good candidate for mig-29 engine as well
 

G10

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Dont have much hopes on kaveri. Why french would create a rival for m88 french engine?
 

Butter Chicken

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We should buy required know-how.For instance we can buy metallurgy technology for a price,like we are buying seeker tech from Israel
 

republic_roi97

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Well we have to keep our hopes up. This time French are not dealing with UPA government, this is Modi, Parrikar and Doval :truestory:
 

Kunal Biswas

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A :

MK1 range in various configuration
B:

PIB report on MK1 IOC-1
C:

Induction plan by IAF of MK1 and MK1A
D:

PIB document on Tejas export
Adding to what @ersakthivel said, The PIB document explains the combat range so does the ferry range, For better understanding study the graph above the PIB screenshot.

Also it is well explained in official graph at 'C' about Induction plan and clearly written at 'D' about ramping up production rate from 2019-2020, These question about induction and export so does production rate been answered multiple times, Best read up the thread then asking same question again and again.

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Regarding separate production line ( Export or not ), I cannot find it at the moment, Best look for it yourself its only in this thread.


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The Failed Negotiations with Snecma for Engine Technology
By Appu K. Soman / In Featured, Short Posts / March 13, 2013

In the midst of sundry scams relating to defence procurement, the cut in the 2012-13 defence budget, and the usual handwringing over delays in various defence projects, an announcement with huge implications for India's search for self-reliance in defence production went unnoticed. Early this year, AjaiShukla, the Business Standard's defence correspondent, reported that the negotiation with the French company Snecma (the maker of the engine for the Dassault Rafale aircraft) for collaboration on India's Kaveri engine had collapsed. Perhaps because nobody has(so far)leveled allegations of corruption, the media and even defence analysts took no notice. But even a cursory look at this negotiation raises the suspicion that all was not above board.

The Gas Turbine Research Establishment (GTRE), a unit of the Defence Research and Development Organization (DRDO), has been working on the Kaveri turbofan engine for the Light Combat Aircraft (LCA) since the 1980s. The LCA first flew in January 2001, powered by a US engine as an interim measure. DRDO did manage to build the Kaveri engine. Unfortunately, the engine failed its high altitude tests in 2005. Even if the Kaveri had performed well, it still would have been inadequate for its original purpose of powering the LCA. What the GTRE had succeeded was in developing an engine using 1970s technology according to specifications fixed in the early 1980s. In the meanwhile, the LCA had become heavier than anticipated, necessitating a more powerful engine. To enhance its power without increasing its size and weight, GTRE needed new technologies that advanced countries had developed in the intervening years for its "hot section"—mainly single crystal turbine blades, "blisk" (integrated rotor disk and blades) and thermal barrier coating for the blades.

In 2006, MoD decided to seek foreign collaboration from reputed foreign engine manufacturers to produce an improved Kaveri. The problem is that countries do not part with such technologies easily. But India had an ace up its sleeve: its proposed medium multirole combat aircraft (MMRCA) deal.Back in 2008, it was reportedthat DRDO had presented MoD a technology wish list, to be obtained in the form of offsets for defence acquisitions. MoD, however, preferred to buy these technologies as part of the contracts for the import of weapons systems. Accordingly, the RfP for the MMRCA deal reportedly prescribed the technologies the winning vendor must part with. Aero engine technology was surely the military technology India needed the most. As it has been widely reported, losing the MMRCA deal would have made the survival of several of the bidders as combat aircraft manufacturers doubtful. Considering these stakes, the MMRCA bid offered India the best leverage to obtain advanced aero-engine technology from the winner.

But the government of India does not believe in using its leverage in bargaining for what it needs most. It issued a stand-alone RfP for collaboration for developing an improved Kaveri in 2006. A separate RfP for the MMRCA deal followed a year later. The US General Electric (GE) and Britain's Rolls Royce refused any form of participation. America's Pratt&Whitney is on record having expressed its willingness to aid the Kaveri project.

But later reports said it was willing to participate only as a consultant. In 2008, MoD selected Snecma over Russia's NPO Saturn as the collaborator for the Kaveri. It was reported that it would take 4 years to develop and certify a new engine, after which the technology would be transferred to GTRE. MoD entered into separate negotiations with Snecma on this deal even as it was processing the MMRCA proposals.

These negotiations dragged onfor more than three years. Meanwhile, the Dassault Rafale, powered by a Snecma engine, emerged as the lowest bidder among those shortlisted for the MMRCA and MoD began contract negotiations with it. Was Snecma playing a game, waiting for the finalization of the Rafale deal? It would seem so. It appeared that in a bizarre twist, at this stage India had allowed France to make the Rafale deal an offset for the engine technology deal.


As what was thought to be price negotiations with Snecma progressed, it also appeared thatSnecma was really offering the "ECO" core it had already developed and that it would pass on the technology to the DRDO only after 15 years. Considering the pace at which engine technology progresses, the know-how, by the time Snecma transferred it to GTRE, would have become obsolete. MoD rejected this proposal. Evaluation of the MMRCA contenders was then going on. Snecma quickly climbed down, agreeing to ToT as soon as GTRE could absorb it.

MoD then began negotiations with Snecma for a joint venture for the development of the Kaveri. Minister of State for DefencePallamRajutold Business Standard: "(Snecma) is willing to co-develop an engine with us; they are willing to go beyond just transfer of technology. It is a value-added offer that gives us better technology than what we would get from ToT from Eurojet(the maker of the Typhoon's engine) or GE." This was misleading.

GE and Eurojet were not contenders for the collaboration with GTRE. The technology they were offering was part of a deal for the import of 99 engines for the LCA Mark II. The kind of technologies sought for the collaboration on the Kaveri engine were not sought for this deal. Officially, no specifics of what technologies Snecma would offer have been disclosed. A senior DRDO official said two years ago that the work share between GTRE and Snecma would be 50:50; that price negotiations would be completed "within a month"; and that GTRE would gain the intellectual property rights for the new engine. Aviation Week reported in March 2012 that an agreement on the joint venture to develop and build a 20,230-lb-thrust engine would be reached by June that year. Snecma would provide "exhaustive know-how" on the technologies and manufacturing processes GTRE lacked, the sources for the report claimed.

In early January this year came the news that MoD has dropped the proposed deal with Snecma. No reason has been reported for this unexpected development. Quite likely Snecma raised the cost of its technologies or refused to pass on the intellectual property rights for the new engine to GTRE as it seems to have promised earlier. At this point, it looks like a classic case of bait and switch. It is hard not to conclude that Snecma was stringing India along with promises it had no intention of keeping, until almost the end of the Rafale price negotiations, and revealed its hands when it could no longer put MoD off. Snecma, by bidding for the collaboration, prolonging the negotiations for several years, and finally hardening its position, has made India's engine development programme lose precious time.

The decision to build a 20,230-lb-thrust engine is also questionable. Such an engine would be inadequate for India's future needs. The 22,000lb thrust GE engine is being procured for the initial batch of the LCA Mark II ordered by the IAF. The improved Kaveri, with a 10 per cent less thrust, would not be adequate for later batches of the LCA, should the IAF decide to order more of them. It is also doubtful if it would be suitable for the Advanced Medium Combat Aircraft (AMCA) which India is planning.

The AMCA, a stealth aircraft, would need to have an internal weapons bay, fairly high internal fuel capacity, and supercruise capability. If the LCA program imparted any lesson to Indian military planners, it is that the AMCA is going to turn out to be heavier than now planned. Developing a 20,000lb class engine now for it makes no sense. Presumably, it is the maximum level to which Snecma's ECO core can be developed.

As Air Marshall Philip Rajkumar (rtd.) recounts in his book The Tejas Story, the DRDO and the IAF had a falling out in the 1980s over the choice of partners for developing the LCA's flight control system. The IAF wanted to go with Dassault, while the DRDO preferred Lockheed Martin. This disagreement had caused the IAF to wage a decades-long cold war against the DRDO and the LCA project in particular. Quite possibly,DRDO bought peace with the IAF by accepting the latter's preference for Snecma.

In the wake of the VVIP chopper scam, Defence Minister A. K. Antony has promised corrective action. He cannot act until he finds out what really happens behind the scenes in the procurement process. The complete lack of transparency in all matters relating to defence makes it easy for unscrupulous elements to manipulate the system. Antony must order a thorough inquiry into the whole Kaveri-Snecma saga. Several questions relating to this affair need answers.

Who was pushing for delinking the Kaveri collaboration from the MMRCA tender? What specifically did Snecma offer in its response to the RfP, and at what price? Why did the negotiations drag on for so many years, and on what basis were predictions of imminent agreement fed to the media on a regular basis (see here and here)? What were the reasons for the termination of the negotiations? This charade could not have gone on for so long unless senior levels of the GTRE, MoD, and the IAF were involved. A top-to-bottom shakeup in the MoD, DRDO, and the services would inspire some confidence that it is not going to be, once again, business as usual.



About the author:

Appu Kuttan Soman is a diplomatic historian, and was a Research Fellow at the Belfer Center for Science and International Affairs at the Harvard Kennedy School of Government, Harvard University from 2007-2009. His research interests include arms control, nuclear history, and South Asian security. He is the author of Double-Edged Sword: Nuclear Diplomacy in Unequal Conflicts: The United States and China, 1950-1958 (Praeger, 2000), and Through the Looking Glass: Diplomacy, Indian Style. He holds a PhD in US diplomatic history from Vanderbilt University and master's in Psychology and bachelor's in History and Psychology from Andhra University in India. He was an Associate of the Charles Warren Center for Studies in American History at Harvard University from 1995-1997.
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Shared by @ersakthivel , Its a old article from the times of MMRCA competition but worth reading..

Read the article very carefully to understand these tactics ..

Source : http://centreright.in/2013/03/the-f...th-snecma-for-engine-technology/#.UtkUGUoQPaR

Radius is 500 Km as per ADA- HAL release for IOC-2, range is 1000 km
Kindly provide a source for this hinting about a separate production line for exports.
Really?How??

30 chars like lo tau
 

rahulrds1

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Turkmenistan, Bangladesh and Srilanka have expressed interest in the LCA

India’s defence research agency has signed a deal with French engine maker Snecma to revive and certify the Kaveri engine, before powering a flight of Tejas light combat aircraft prototype by 2018.

“Once the engine houses make it a flightworthy engine, we have numerous programmes coming up and there is more than one place for it to be fitted.

The Indian Air Force has ordered for over 120 single engine Tejas fighters powered by a General Electric 404 engine, the powerplant the aircraft first flew in January 2001. So far the Tejas has flown nearly 3,300 sorties, which includes sorties by IAF chief Arup Raha.

An upgraded Mark-2 aircraft of Tejas is being designed for a more heavier GE-414 engine by 2025, and the DRDO hopes that the upgraded Kaveri would qualify for the plane by then.

Kaveri would power other programmes such as Ghatak, the unmanned combat aircraft vehicle of UCAV, for which studies have begun by the research agency.

“So we have Ghatak in our hand, we have so many other programmes coming up. Anyway we have to have indigenous engine development also. All that we are trying to do is trying to allocate one of the prototype for this and make use of some of the offset for this hand holding if possible,” said Ramnarayanan.

The chief of Aeronautical Development Agency Commodore C D Balaji said that the agency expects around 40 aircraft of the 123 planes ordered by the IAF would be delivered by 2020 and the remaining 83 by 2025.

Responding to queries regarding export potential of the new engine, programme director for Combact Aircraft and director of Aeronautical Development Agency C D Balaji said that there have been enquiries for Tejas from a few countries.
countries such as Turkmenistan, Bangladesh and Srilanka have expressed interest in the aircraft, he said.

He said the Hindustan Aeronautics Ltd is doubling its production of Tejas to 16 from eight.

source : http://www.newindianexpress.com/nat...r-trains-in-the-future-says-drdo-1540730.html
http://www.business-standard.com/ar...-turbine-engine-for-tejas-116112000534_1.html
 
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Filtercoffee

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This is exactly what a test bird is!
In events already programmed, I hope the spark is with you, also engineered after 1980 might prove that back channel routes of our very own DRDO might cater to a 110 KN engine all along. No mystery here I know it was easier for a sing - along all over world but better would be the case if they had a line up of engines ready for LCA and various other designs. Just like the helicopter engine seen on LCH. All the money lost in wasting on the likes ( I hope also the same), the Air force for a while would've feed, not arranged for feeding a whole status quo. Imagine where they would be today. No point to this rant being of human nature all along.
 
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