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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icecoolben

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Rd-33, it would be excellent for Tejas also export potential, i is now.

RD-33MK engines for tejas??
India Defence Online reports India is seriously considering to use the Russian 33/RD-33MK engines for the homegrown Light Combat Aircraft, as it already used the Indian Air Force fleet of MiG-29 aircraft.
I have already wrote about this possibility in this blog early. I think, the allegedly selling of an uprated RD-93 engine to China and the current Indian activity around RD-33MK are two related events. Indeed, during some years (more than 5) Russia repeatedly refused to sell the RD- 33 variant with increased thrust to China. One possible reason for this – is the Indian pressure and the agreement between two nations for not allowing China to have more advanced weapons than India. The second one – Russia by self doesn't want China to be too assertive, so the weapons sold for China were always inferior in some degree relative to what Moscow sells to Delhi.

But the technological development is continuing. Sometimes you must run for keeping your place intact. Russia cannot refuse to sell 9 t RD-93 engine for China infinitely (till now it sold only 8.3 t thrust variant). It because the China copy WS-13 (with 7.8 t thrust) is gradually improved and becoming close in its characteristics to the regular RD-93. If Russia refuses now it will lose both the market and the leverage on China. So, the refusing loses its sense. Now the Russian engine manufacturers use Chines money for R&D, so India benefits from this situation too, since China in reality pays for India's advantage. Otherwise the price for new Russian engines, imported to India would be significantly higher.

It's not a secret, that India wants its Tejas light fighter will be more advanced than the Chinese fighter FC-1 (JF-17) of the same weight class. This advantage has not only a military but political and psychological aspect too. One of the most important and persuasive characteristic of a fighter is its engine. According to its thrust, reliability, service life can be made the conclusions about capability of the aircraft to take weapons and fight.

Thus, the current Indian preoccupation in seeking a more powerful engine for its indigenous Tejas project is well understood against the background of aggressive Chinese FC-1 marketing to India's neighbors. A more powerful engine with longer life could help Tejas mk.2 to take-off from the carrier deck, keep more payload and be more maneuverable in dogfight. Now installed GE F-404 engine isn't powerful enough, and the development of the indigenous Kaveri engine is too slow.

Till now two foreign engines were evaluated by India as candidates for Tejas mk.2: the European 90 kN EJ200 (EF-2000) and the American 98 kN GE F-414 (Super-Hornet). Only F-414 gives Tejas a decisive advantage over FC-1's RD-93 in thrust, although being slightly heavier. However, the airframe (inlets) rework is needed too for installation. 90 kN EJ200 has no significant advantage over RD-93 especially if the last is going to be uprated to 9 t = 88.2 kN. Furthermore, since the uprated variant of RD-93 is based on RD-33MK technologies, it must have service life close to 4.000 h. Whilst EJ200 according to some sources has only 2000 h life.

The Chinese were not allowed to produce RD-93, but they bought a repairing facility and technologies for repair. Thus they are unable to make a new RD-93 but theoretically still can try to 'overclock' RD-93 for even more thrust - 90-93 kN – however with expense of reducing life in some degree. In such a way they can have an engine with better than EJ200 tech characteristics for half a price. It can be the critical point for their FC-1 program export success. If they indeed, as was reported, are going to buy up to 500-1000 RD-93 engines with increased power, they are very serious in this aspect.

As my reason says me, the Indians tops could be now with the dilemma:

1) Going for the American 98 kN F-414 . Proved risk to be sanctioned in most unpredictable and hard situation. A totally new engine in IAF and IN inventory. However, could have some sense if F/A-18 wins MMRCA tender. Growing friction with US on nuclear issue makes this choice too risky and so – improbable.
2) 90 kN EJ200 – doesn't give any tech advantage for Tejas against it's main competitor and rival. According to my estimation could be as twice more costly than RD-33MK-based engine if recounted to lifespan. Theoretically can be sanctioned by each participant of this project (GB, Germany, Italy). Significantly reduces the export prospective of Tejas being too costly for potential LCA consumers in 3rd World.
3) RD-33MK variant with the bottom gear placement and a thrust vectoring nozzle (RD-133). Can be upgraded up to 10 t (98 kN) thrust in near future without changing the engine core. The Russian obligation to not sell TVN for China can be obtained, so the advantage of Tejas mk.2 engine (if chosen) can be visible and persuasive for public. The KLIVT all aspect TVN can be especially worth for the carrier based Tejas' variant now actively developed by HAL. The 8.3 t RD-33 ser.3 variant of the engine is already licensioned and ToTed in India, so only a minimal addition will be needed for RD-33MK production in India.

The last developments, the new contract for additional 29 MiG-29K\KUB and the Indian intention for purchasing more 50 Su-30MKI say Delhi has no any 'allergy' to Russian military stuff as some English-speaking writers hint in their publications. Therefore, even deeper cooperation can be predicted between India and Russia in military-industrial sphere, including common development. If RD-33MK chosen as a transitional engine for Tejas LCA (till Kavery ready), it's would be logically to use the Russian expertize for accelerated integration it into the redesigned LCA airframe. In most successful scenario we can reckon even a joint venture for accelerated LCA export for third countries with the Russian engine. This could have the framework of Brahmos program, when one side gives its almost ready project for joint revision and export, but keeping independence in domestic production. Only by this way the Indo-Russian tandem could compete with the aggressive Chinese marketing of its light fighters in 3rd World. For now Russia has no a project which could be an alternative to Chinese FC-1 fighter in light class.

The current development also raise the Russian chances to win MMRCA tender, since the opportunity for engine unification between IAF and the Navy on one already ToTed engine (RD-33) seams to be too attractive for refuse.
Defunct Humanity: RD-33 for Tejas?
I agree with u the indians and russian working together would help keep the chinese away from the the light fighter market. With a russian proven engine and a gaurentee of future enhancement of the engine its an excellent proposition. We would be able to strategically capture the third world market also keep the chinese buying from the russians. While we would be licence producing them.

The mig-35 wins the mmrca and we produce lots of batches of those rd-33 engines and our tejas would take off roaring from iaf airfields. The indigenous aircraft carrier would be cruising with 40 tejas fighters on its deck, making port calls to indian, pacific and the atlantic oceans. Attending fleet reviews at different countries. Showcasing the tejas in nigeria, indonesia, vietnam, bolivia greece all countries that would prefer our russian engined tejas than buy cheap russian engined chinese jets . Then our tejas sales will sour, russia will produce more and more rd-33 engines. Its a win-win situation.
If there was a light fighter competition when tejas and j-17 battle it hard out, wouldn't russia be tempted to field its mig-29s though twin-engined is still in in the light category . It would expose the major hole in both tejas and j-17. They have a foreign heart at their cores. If rosenbosxport plays a behind the scenes card that russia might with hold spares supply to engines of fighters supplied by india and china, wouldn't that be a win-win situation as well. But i ask for whom.
We indians have a stintch of loyalty in our blood unlike white men. I'm not being racist. Its western ideology brought forth by rennisance. Be it americans, french, english or the russians. Though Russians are not that business savvy as americans who proudly claim the business of america is business. They still look out for their own interests. Look at the political mileage moscow can offer that the new delhi can only dream off. Look at the french, they equipped their rafales with f404 during development, but instantly changed to m-88 though it had a lesser thrust than the ge414 in20 available then, thus they have been able to avoid american hegemony and field their fighters against gainsts lockheed and boeing in export competitions. They are highly respected for their sanction immune self-sustaining systems that offer foreign customers the reliability they expect from all weather defence supplier . So lets face it depending on russia would always be an unequal partnership and detriment to our own interests.
How does then india assert its autonomy? by going it alone, not likely. Lets put our foot down to tejas engine. Its a well known fact that our tejas has been integrated with ge f404 by following western engine computer integration laws and engine manufacturers of russia and west even the europeons seldom share technology. So it would be next to impossible to sucessfully integrate rd-33 with out major changes to the aircraft wirings and controls. Another issue is that the rd-33 measures 40 inches in diameter and length at more than 160 inches, but tejas's nozzle exit is designed for 35 inches dia, 154 inches length turbo-fan. Even if v sqeeze the engine there's a big problem the russian engine weights at 1143 kg heavier. so it takes larger space and also larger percent of aircraft weight. tejas is very small,compact with very light wings but not as rugged as an all metal plane. Using rd-33 might make the centre of gravity of tejas fuselage to fall in line with the engine it would present major problems then. So its best we go for ge 414 or better the ej-200 for the mk-2 atleast for the time being . Our military planners and politicians had envisaged such a situation. So they aspired the most difficult technological leap forward that was the GTRE kaveri after burning turbo-fan. Imagine the day kaveri was taken to russia in hopes that it would finally pass all tests and power production tejas models. But failure is an integral part of life . Just because the media fan fare has died down doesn't mean v should give up on it. The snecma-gtre proposal should be the stop gap measure. After achieving at least 90% of engine manufacture locally by 2016 tejas export can be pursued by then. The french have lost competitions due to low power of their engines compared to ej-200. But they were patient. Now they are confidient that m-88 is about to fruitify . The kaveri could well be our m-88 3 by then(by engine specifications too i mean). Lets put faith in our institutions than give in to chinese paranoia, shake hands with the russians, and pretend a false victory. The real victory would be when gtre and similar indian companies go economies of scale and engine every aircraft in indian fleet service. Be it civilian and military.
 

khatarnak

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I agree with u the indians and russian working together would help keep the chinese away from the the light fighter market. With a russian proven engine and a gaurentee of future enhancement of the engine its an excellent proposition. We would be able to strategically capture the third world market also keep the chinese buying from the russians. While we would be licence producing them.

The mig-35 wins the mmrca and we produce lots of batches of those rd-33 engines and our tejas would take off roaring from iaf airfields. The indigenous aircraft carrier would be cruising with 40 tejas fighters on its deck, making port calls to indian, pacific and the atlantic oceans. Attending fleet reviews at different countries. Showcasing the tejas in nigeria, indonesia, vietnam, bolivia greece all countries that would prefer our russian engined tejas than buy cheap russian engined chinese jets . Then our tejas sales will sour, russia will produce more and more rd-33 engines. Its a win-win situation.
If there was a light fighter competition when tejas and j-17 battle it hard out, wouldn't russia be tempted to field its mig-29s though twin-engined is still in in the light category . It would expose the major hole in both tejas and j-17. They have a foreign heart at their cores. If rosenbosxport plays a behind the scenes card that russia might with hold spares supply to engines of fighters supplied by india and china, wouldn't that be a win-win situation as well. But i ask for whom.
We indians have a stintch of loyalty in our blood unlike white men. I'm not being racist. Its western ideology brought forth by rennisance. Be it americans, french, english or the russians. Though Russians are not that business savvy as americans who proudly claim the business of america is business. They still look out for their own interests. Look at the political mileage moscow can offer that the new delhi can only dream off. Look at the french, they equipped their rafales with f404 during development, but instantly changed to m-88 though it had a lesser thrust than the ge414 in20 available then, thus they have been able to avoid american hegemony and field their fighters against gainsts lockheed and boeing in export competitions. They are highly respected for their sanction immune self-sustaining systems that offer foreign customers the reliability they expect from all weather defence supplier . So lets face it depending on russia would always be an unequal partnership and detriment to our own interests.
How does then india assert its autonomy? by going it alone, not likely. Lets put our foot down to tejas engine. Its a well known fact that our tejas has been integrated with ge f404 by following western engine computer integration laws and engine manufacturers of russia and west even the europeons seldom share technology. So it would be next to impossible to sucessfully integrate rd-33 with out major changes to the aircraft wirings and controls. Another issue is that the rd-33 measures 40 inches in diameter and length at more than 160 inches, but tejas's nozzle exit is designed for 35 inches dia, 154 inches length turbo-fan. Even if v sqeeze the engine there's a big problem the russian engine weights at 1143 kg heavier. so it takes larger space and also larger percent of aircraft weight. tejas is very small,compact with very light wings but not as rugged as an all metal plane. Using rd-33 might make the centre of gravity of tejas fuselage to fall in line with the engine it would present major problems then. So its best we go for ge 414 or better the ej-200 for the mk-2 atleast for the time being . Our military planners and politicians had envisaged such a situation. So they aspired the most difficult technological leap forward that was the GTRE kaveri after burning turbo-fan. Imagine the day kaveri was taken to russia in hopes that it would finally pass all tests and power production tejas models. But failure is an integral part of life . Just because the media fan fare has died down doesn't mean v should give up on it. The snecma-gtre proposal should be the stop gap measure. After achieving at least 90% of engine manufacture locally by 2016 tejas export can be pursued by then. The french have lost competitions due to low power of their engines compared to ej-200. But they were patient. Now they are confidient that m-88 is about to fruitify . The kaveri could well be our m-88 3 by then(by engine specifications too i mean). Lets put faith in our institutions than give in to chinese paranoia, shake hands with the russians, and pretend a false victory. The real victory would be when gtre and similar indian companies go economies of scale and engine every aircraft in indian fleet service. Be it civilian and military.
fullly agreed, i also prefer to stick with the ge 414 engine for mk2. simultaneously, continue to R&D in kaveri. this would be the best way to go.

this will ensure the tejas project not be delayed and in future we may integrate kaveri in.
 

VayuSena1

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Interesting video there. However, the comparison is quite biased considering that the Raptor engine is extremely powerful as compared to the Tejas'. Not to mention that the F-22 possesses thrust vectoring engines, thereby enabling faster turn. In order to even compare our fighter with the Raptor, we might have to first consider the newer and more powerful engines with thrust-vectoring in order to enable tighter turns.

This is all apart from re-designing the entire fuselage to be more aerodynamic.
 

p2prada

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Interesting video there. However, the comparison is quite biased considering that the Raptor engine is extremely powerful as compared to the Tejas'. Not to mention that the F-22 possesses thrust vectoring engines, thereby enabling faster turn. In order to even compare our fighter with the Raptor, we might have to first consider the newer and more powerful engines with thrust-vectoring in order to enable tighter turns.

This is all apart from re-designing the entire fuselage to be more aerodynamic.
These are not the only reasons why the video may be biased. We need to know at what height they were performing these turns, at what speed, what fuel loads, what not?

Was the Tejas pilot even attempting to perform the sharpest possible turn or was just performing at his own leisure.
 

khatarnak

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in August, LCA had completed 19 flights... and in september just 4 !!!!!!!!!!!!!!!!!!! what's going on with the testing of tejas? does the ADA and DRDO want it to be inducted in IAF or IN?? :help:
POST #447..........

In its path towards Initial Operational Capability (IOC), a pair of LCA Tejas fighters -- Prototype Vehicle-3 (PV3) and Limited Series Production-2 (LSP-2) -- were recently deployed to Jamnagar for a period of five weeks for testing by the South Western Air Command (SWAC). The trials entailed flight envelope expansion in various stores configurations, as well as air-to-ground weapon delivery trials in different modes of weapon delivery. According to a DRDO statement, "The aircraft has successfully demonstrated its ability to tackle targets which are designated visually by the pilot. After this phase, the Tejas will be able to take on targets whose parameters in terms of location and altitude are fed to the on-board navigation and attack computer. The target does not even have to be visible to the pilot at the point of delivery."

The flight trials were conducted by the flight test crew of the National Flight Test Centre (NFTC), who deployed test pilots, flight test engineers and instrumentation specialists for the task. This is the first time that the Tejas aircraft have operated away from home base for so long. The support provided by the personnel of Hindustan Aeronautics Limited (HAL) the manufacturers of the aircraft, ensured that this indigenous fighter aircraft was able to take to the skies regularly. The Tejas team included specialist groups from Aeronautical Development Agency (ADA), Aeronautical Development Establishment (ADE), National Aerospace Laboratories (NAL), Central for Military Air Worthiness and Certification (CEMILAC) and DG-AQA.

The Indian Air Force teams working at ADA and the Air Force base where the trials were conducted have contributed significantly for the success of the trial. The excellent weather conditions prevailing in the Saurashtra sector and the enthusiastic support of the Indian Air Force ensured the successful completion of the current phase of flight trials. With this milestone achieved, the entire Tejas team is upbeat and the Tejas is one step closer to induction into the Indian Air Force.
SOMETHING WAS HAPPENING IN JAMNAGAR.........

LCA is being tested in Jamnagar for weapons.

LiveFist - The Best of Indian Defence: FIRST IMAGES: LCA Tejas Weapon Trials At Jamnagar

:goodstuff:
 

nitesh

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from: LiveFist - The Best of Indian Defence: FIRST IMAGES: LCA Tejas Weapon Trials At Jamnagar





In its path towards Initial Operational Capability (IOC), a pair of LCA Tejas fighters -- Prototype Vehicle-3 (PV3) and Limited Series Production-2 (LSP-2) -- were recently deployed to Jamnagar for a period of five weeks for testing by the South Western Air Command (SWAC). The trials entailed flight envelope expansion in various stores configurations, as well as air-to-ground weapon delivery trials in different modes of weapon delivery. According to a DRDO statement, "The aircraft has successfully demonstrated its ability to tackle targets which are designated visually by the pilot. After this phase, the Tejas will be able to take on targets whose parameters in terms of location and altitude are fed to the on-board navigation and attack computer. The target does not even have to be visible to the pilot at the point of delivery."

The flight trials were conducted by the flight test crew of the National Flight Test Centre (NFTC), who deployed test pilots, flight test engineers and instrumentation specialists for the task. This is the first time that the Tejas aircraft have operated away from home base for so long. The support provided by the personnel of Hindustan Aeronautics Limited (HAL) the manufacturers of the aircraft, ensured that this indigenous fighter aircraft was able to take to the skies regularly. The Tejas team included specialist groups from Aeronautical Development Agency (ADA), Aeronautical Development Establishment (ADE), National Aerospace Laboratories (NAL), Central for Military Air Worthiness and Certification (CEMILAC) and DG-AQA.

The Indian Air Force teams working at ADA and the Air Force base where the trials were conducted have contributed significantly for the success of the trial. The excellent weather conditions prevailing in the Saurashtra sector and the enthusiastic support of the Indian Air Force ensured the successful completion of the current phase of flight trials. With this milestone achieved, the entire Tejas team is upbeat and the Tejas is one step closer to induction into the Indian Air Force.
 

khatarnak

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Most of the test pilot workforce are doing the MMRCA trials thus there is shortage of test pilots. The new batch hasnt arrived yet things will start off as soon as the Radar integration and the Two seater aircraft finishes ground tests.
Nope..... you are wrong mate.

LCAs were tested thoroughly at Jamnagar. Find my previous post.
 

NSG_Blackcats

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IAF conducts multi-disciplinary trial of LCA​

New Delhi: Moving closer to achieving Initial Operational Capability configuration for the Light Combat Aircraft (LCA) by end of 2010, the Air Force conducted five-week multi-disciplinary trials of a pair of indigenous fighters at its Jamnagar air base. "The trials entailed flight envelope expansion in various stores configurations, as well as air-to-ground weapon delivery trials in different modes of weapon delivery," a DRDO official said here today.

The LCA successfully demonstrated its ability to tackle targets designated visually by the pilot, officials added. After this phase, officials said that the LCA will be enabled by its on-board navigation and attack computers to take on targets, which are not visible to the pilot. The five-week trials were conducted by the flight test crew of the National Flight Test Centre (NFTC) including their test pilots, flight test engineers and instrumentation specialists. "This was the first time that the Tejas aircraft have operated away from home base for so long," officials said.

Link
 

A chauhan

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Gripen cannot supercruise with full combat load. Their first try was simply a fluke. Does not mean they can make it work at full load.

The LCA CANNOT supercruise without design changes.
What changes should be made to provide it Supercruising ability ?
 

bengalraider

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What is SuperCruise, does it mean cruising at high speed. Sorry for my ignorance.
Supercruise as defined by Wikipedia is
Supercruise is sustained supersonic flight of an aircraft with a useful cargo, passenger, or weapons load performed efficiently and without the use of afterburners.
 

Rahul Singh

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LCA-Tejas has completed 1210 Test Flights successfully. (13-Oct-09).

* LCA has completed 1210 Test Flights successfully
(TD1-233,TD2-305,PV1-222,PV2-128,PV3-171,LSP1-54,LSP2-97).
* 170th & 171st flight of Tejas PV3 carried out at Jamnagar on 12th Oct 09.
* 97th flight of Tejas LSP2 occurred on 12th Oct 09.
 
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