TEJAS and the Kaveri Engine

The LCA Tejas program included the developement of the Kaveri engines. The effort ultimately failed but the Kaveri engine is the centerpiece of different initiatives that may lead to a very large diffusion.
This is the story of its development.
#Kaveri #Tejas
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[@Millennium7HistoryTech]

Support me on Subscribestar www.subscribestar.com/millennium-7-history-technology Support me on Patreon www.patreon.com/Millennium7 ---------------------------- Ask me anything! Take part to the community Q&A clicking the link below! tinyurl.com/y4g528lt

[@vinodkaka5225]

If possible please make a video on long range strategic & tactical Bombers aircraft of Russian & US origin

[@ajaykaushik6081]

please do a mirage 2000 vs tejas in terms of maneuverability

[@ravideals9456]

What is the background music around 7:30,@millenium7historytech

[@andrewlambert7246]

Its fantasic that India has gotten so far with developing an engine with highly respectable specifications. Hats off to India and its scientest.

[@cannonfodder4376]

A discussion video on Jet Engines in general would be a good video. Given how invaluable and misunderstood they are to many. Another good video on te topic.

[@Millennium7HistoryTech]

Great point!

[@KarthikSoun]

I had a long conversation with a Scientist in AeroIndia in 2009 at Gtre stall. They even had a single crystal blades ready, he sounded positive and sounded upset with IAF asking too much. Its sad it didn't take off.

[@ViceCoin]

Single crystal require advanced manufacturing. Also add corruption and mismanagent.

[@mrrolandlawrence]

If only there was a double bell icon ;) Great video as ever!

[@leoarc1061]

Just dont click on it twice ;)

[@veerendrapratapsingh8719]

Kaveri based dry engine for 60kN class has been sanctioned for the UCAV.

[@AnindyaMitraDigitalStoryteller]

In development, work needs to be done until it's ready. Another 5 years or so

[@naveenarora6467]

@@AnindyaMitraDigitalStoryteller dude not 5 years XD Kaveri already has a dry engine. They will be adding newly developed technologies to it and that is it. I would be surprised if it takes more than 2 to 3 years

[@veerendrapratapsingh8719]

@@AnindyaMitraDigitalStoryteller gov has sanctioned 1000 cr for that dry variant for UCAV while the whole Kaveri program cost around 2700 cr,the technology involved in the new project will be way advance than what Kaveri has,and it will employ various new technologies like the new fan blade,3 gen single crystal blades and vanes,and new annular combustion chamber...it might take more 5 years to certify that and use on ghatak UCAV ...

[@AnindyaMitraDigitalStoryteller]

@@naveenarora6467 It takes around 3-5 years of test flights and optimisation before an engine can be certified as flight worthy. The Kaveri has not been tested beyond brief periods like an hour or two

[@AnindyaMitraDigitalStoryteller]

@@veerendrapratapsingh8719 The dry variant still has issues which haven't been fully ironed out. Without an indegeneous test-bed the engine development will take much longer than 5 years. It remains to be seen how the recent 450 crores funding for testing infrastructure is utilised

[@MSav1988]

Who’s this guy? He’s awesome. Is he an aerospace engineer himself?

[@blackpigeon4743]

He has master in aerospace engineering and he was a fighter pilot in Italian air force.

[@oxcart4172]

@@blackpigeon4743 Has he done a video about himself? How do u know?

[@kingrobert3260]

@@oxcart4172 Yeah same question ^^

[@kingrobert3260]

@@blackpigeon4743 where do you get this kind of informations pls ? Wanna check if reliable trusted sources. Thanks.

[@blackpigeon4743]

@@kingrobert3260 He told this in one of his video. Though I don't remember which video it was but I m 100% sure he said this.

[@vigneshanand3348]

Though it's a shame the Kaveri program failed , it's not real suprise , the program received only a fraction of the funding required , had no test beds or facilities and had no know how in materials , flame control and gas turbine design required . Also original program goals was 80 Kn wet and in the end the engine did achieve that number in test but not with the reliability required , the DRDO did actually end up fabricating decent Single Crystal Blades . And recently a higher performance fan was designed but core is plagued and badly designed . After the Rafale buy there was a deal for safran involvement , no work actually got done with safran and the GTRE quietly worked on with no real funding . Till date a lot of technologies like materials , combustion control and fadec other technologies have been developed but I don't see the Kaveri going anywhere with a flawed core . With all the technologies and infrastructure developed if the DRDO started on clean sheet design with technical consultancy from an early stage I'm confident that the program will do much better but a lot funding, infrastructure and technology challenges remain. For now the airforce is happy with the performance and reliability of the GE F404 which will continue to serve on the Tejas.

[@Amar-fd7cg]

GTRE received all the funding they asked for and more. Initial request was for INR 3.83 billion. By 2004, INR 13 billion had already been spent, with the program still a long way to go. While nobody expects GTRE to get things right on the first try, it is deplorable that after 30 years of development, GTRE hasn't met requirements on weight and thrust (not even looking into finer things like engine life, serviceability and reliability, which are orders of magnitude much tougher than achieving performance). The only success that GTRE has to show is the small turbofan engine used on the Nirbhay cruise missile, but this was reverse engineered from a Russian engine (not to take away the work that went into reverse engineering it, which is not an easy task). People need to realise that the work culture at GTRE needs a complete overhaul if things are going to change.

[@indianmilitary]

vignesh anand Don't use the word failed since Kaveri can be improved upon.

[@pravinmeher2036]

​@@indianmilitaryvery true. Even WS-15 is/was under development for decades. Even though Chinese are best in reverse engineering and stealing western technologies.

[@sagagarwal]

Thanks for the video!!! Keep it onn! Eagerly waiting for more videos from you

[@moveaxebx]

Amazing content my friend!

[@sagargupta8115]

Nice video. Only one little correction, K10 isn't for AMCA but the final production standard of Kaveri engine for Tejas (LCA). AMCA engine is a totally different program (yet to be named) with 75 KN dry and 110 KN wet thrust targets.

[@amitchodankar1989]

Very informative video on Kaveri engine. 👍👌

[@leoarc1061]

Thank you for another great video.

[@arkadeepkundu4729]

*We're going to build a modern jet engine comparable to any Western or Russian contemporary, from scratch in less time than it takes for established manufacturers like GE, PW or Rolls-Royce without any test bed, no testing labs, inadequate simulation capability & no domestic high altitude test aircraft.* This is pretty much standard for all Indian projects. Govt says build be something better than everyone else with 10% the budget & no R&D infrastructure. And then they refuse to even pay the alloted money saying they are short on cash. Meanwhile the military imports whatever it wants anyway & the next government reduces R&D budget even further saying they already bought what they wanted from abroad so no point developing it again. I remember when ISRO first started they had to carry rocket parts to & from the test range to their lab on bicycles & ox carts.

[@daylightsagacious4929]

Bloody hypocrites, I know right?

[@IonorReasSpamGenerator]

*Arkadeep Kundu:* When India starts production of F-16 and its engines, Indians likely copy manufacturing techniques required to produce high resistant alloys for hot engine core from experience with F-16 engine production, by that time however early prototypes of 6th gen Western fighters with variable cycle engine (first tested on ATF prototypes in 80ties which resulted in the eventual production of F/A-22) may appear... But, India competing with China and Pakistan, not Europe or the US, and as long as China did not get hands on new Western tech, India should be fine for two decades at least with advanced turbofan engine considering China still not finalized even 5th gen turbofan engine...

[@IonorReasSpamGenerator]

@@death_parade Having licensed Cold War Soviet manufacturing technology for Flanker engines is pretty useless as Soviet metallurgy was behind Western engine metallurgy tech in 80ties which is among reasons why Soviet/early Russian engines did not last as long, so unless you want to produce short lifespan 80ties engine tech, licensed Soviet/early Russian engine manufacturing knowledge did not help you that much. Why would Russians even bother to interfere with India's attempt to produce a smaller engine for Tejas using licensed Cold War manufacturing knowledge if the result will be even worse than bought GE engines as far as lifespan concerned? Late 80ties Western metallurgy on the production-ready level was still not achieved in India because otherwise, India would not need to buy GE engine tech developed in the West during the 80ties for Hornet and modified in early 90ties. India may get closer to that manufacturing knowledge with mass production of engines for the F-21, having something working out in lab most of the time (not like Kavery even managed to match nowadays quite aged GE engines in power or reliability even with by your argument next-gen Indian metallurgy) is as much useful as having a new super battery you hearing about all the time that you can't successfully mass produce in the required quantity & quality for whatever reason. If you really believe India's problem is a lack of jet engine simulation to match what West designed and produced during the late Cold War with computers that did not match even your smartphone even when India can utilize the newest computing hardware and simulation software available I would not take your illusions away with common sense likely anyway, so I would not bother.. India is buying F-21 for a reason and that reason is that they cannot match even Westen 80ties engine technology on the production level, if they managed that, they just build constantly upgraded Tejas planes like there is no tomorrow, not like multirole F-21 has something that India cannot codevelop with other countries like Israel (which can and already producing missiles AESA radars & targeting pods for many countries) apart from the engine which mass production experience will be the single most important value of F-21 deal for India... Hell, the fact that engine tech is what is most valuable for India quite obviously hinting even Lockheed itself in his F-21 for India video presentation: kzbin.info/www/bejne/jH-sqImundx_hq8 Did you notice? ;) Don't worry I won't be responding again..

[@IonorReasSpamGenerator]

@@death_parade why you just trying to pretend to not be a troll, just admit it, I wanted to end this pissing contest, sincerely, but someone may take your comments seriously.. You: You talk about "Western 80's technology" and you call GE-414 "just updated Western 80's technology". Classic case of someone who knows nothing about the actual technology that goes into a jet engine. Me: cool story bro but I never talked about GE F414 because as far as I know Tejas using modernized GE F404 with stronger afterburner (compared to F/A-18 or Gripen C afterburner), not 414 which was developed in early 90ties and which modernized version won a contract for the next variant Tejas II that is not yet in service, current Tejas using GE F404 because India can't match even that... You: No country will give you their crown jewel i.e. jet engine technology. Also you: India has been making Al-31 engines for a while now. Me: Well, apart from you contradicting yourself, Sweden license produces engines from foreign countries like the UK or the US for decades, in fact, engines license-produced for Gripens C/E could work also for Tejas I/II. Now back to your cave, and find a job if learning isn't your thing, perhaps Russians hiring professional trolls or whatever, and yes I am making fun of you because your contradicting comments make zero sense other than waste others people time by spreading misinformation and pretending that you know what you talking about. If you are used to be made fun by people of India/Pakistan, they in your specific case likely have their reasons, never been in India nor Pakistan, and certainly don't care about comment wars of internet keyboard warriors of these nations. I hope that India will have better relationships with Pakistan in the future when people of both countries were once able to live together just fine under oppressive rule, yet unable to live in peace together once they got freedom. It's kinda sad actually when both countries have a lot of catching up and instead for decades spending an excessive amount of money just to deter each other, this makes nowadays a bit more sense with the rise of China in the last decades but still...

[@bernardotorres2532]

Very good and serious videos, they do not engage in sensationalism and are dense in content, very substantial in their content.

[@karthikeyanak9460]

Thanks I need more news on this program, especially if there is corruption in the defense sector. It's our hard earned money.

[@parshantpanwar]

public sector and corruption go hand in hand

[@prashantsharmastunning]

How the hell did corruption come into this... U stupid or what..

[@sagagarwal]

Dont spread hatered here please dont spoil countrie's image all over here!

[@praveenm6204]

Sorry to disappoint, but this is not the Congress government 😊

[@munmunhazarika5247]

Chowkidar choor hai.... Rafale are over prices.... Private sector mostly BJP favoured firms will get orders sub contract and commission would be deposited in BJP account plus political donation is secret in India... Lol

[@arupendradas1688]

Liked the update. Can you elucidate how a 'safran' backed kaveri engine will be different from GE 404 in terms of propulsion?

[@straydwag]

I remeber that cartoon made my NYT : An Indian scientist with cow outside the International space agency. Now ISRO brock many records and showed there USP of efficiency. Today Kaveri is being trolled. You can guess the future....😈

[@peterweller8583]

I respect Indian manufacturing I have many types of metrology instruments to measure with and the Baker drop indicator is my favorite.

[@patrickchase5614]

It's crazy to think that India jumped into Kaveri with a turbine inlet temperature goal that's almost the same as the (notoriously hot-running) P&W F135. The M88 only runs at ~1600C and the F404 around the same IIRC.

[@dnranjit]

Very informative...with lovely accent.

[@DefenseNewsX]

Sir always bring interesting topics from around the world ....

[@ajaychawla1000]

Quick update, kaveri dry verient completed its trials and produced maximum thrust of 48KN. Core is stable, vibration problem sorted out. Dry varient looks good but there is no news or update of any afterburner version.

[@desertscorpion8081]

Only way to deliver new engine for AMCA on time is find a reliable partner as soon as possible, the experience on Kaveri will definitely benefit

[@kingrobert3260]

What partner do you want ? India started to R&D and built their Kaveri engine alone, but they suddenly understood they will failed if they keep going alone. So this is why India already made a contract with SNECMA for technical assistance, but the problem is simple, It is very difficult for any jet engines makers to jump suddenly in a project which has been started by other people before them. SNECMA is now part of SAFRAN, and they proposed a new contract for India to finish the Kaveri engine. It will be much more difficult to find a new partner now than ever, It would be so much work to understand It all again for another team.

[@oxcart4172]

Can anyone explain to me why it's do damned important for people to show off that they're first or second (or whatever!) To comment on the bloody vìdeos??😠😠😠

[@PPSRHD]

I feel you man. It's a bit weird. I think it's begging for likes or recognition.

[@yosup125]

It’s usually done by naive kids. As long as there is no malicious intent I don’t see a problem with it. Once they grow a little older they will realize it is dumb and stop.

[@harsh9558]

Kids, ignore them 😉

[@mohan02]

Probably, juvenile delinquents incabale of making any worthwhile comment.

[@jayasuriyas2604]

It's wierd

[@NaveenKumar-co9yn]

Excellent research work.. Thumbs up from India 🇮🇳

[@asi2765]

A dry version of Kaveri is being developed for the upcoming UCAV project. 2025, Hopefully.

[@stupidburp]

A dry version of M88 would be more suitable for a drone. Smaller and lighter overall and better thrust to weight ratio.

[@asi2765]

@@stupidburp Doesn't matter. GTRE wants to continue the Kaveri project. They are attaching it with the UCAV project for funding.

[@fredferd965]

If I understand it correctly, the Russians typically have short performance lives on their jet engines. Instead of overhauling a Mig 21 engine, they just put a new one in and throw the old one away. The Time Between Overhaul on their engines is short. Having them help you design a jet engine turbine might be a bad idea, because it might not last long.

[@burlatsdemontaigne6147]

They don't throw them away. They are stripped down and rebuilt and put back in to service. It is part of their engineering philosophy. They have an abundant and technically trained workforce so it is really designed to exploit that resource.

[@benithisraelm]

Thats a good video. I wish you could have explained the flat-rating concept too.

[@whiskeyandice7236]

I just came to hear u talk..love the accent

[@amitgondekar595]

Nice analysis of indegenious program

[@marioshadjikyriacou3381]

You are amazing!!

[@asitsen2174]

At first DRDO should be make all the testing facility available in India to build turbofan or Kaveri engine . such as high altitude flying test.

[@Pro-lp6uj]

Make a video on Astra air to air missile made by India and compare with other missiles.

[@supratiksaha2001]

DRDO and ISRO is working together for making a new engine for AMCA.

[@debayanbasu8964]

No, it's fake news

[@jagdeepsingh6742]

Isro does can not work for defence. As per US-India 2009 civil nuclear deal

[@lovesinghania398]

Then how they do project Surya faku

[@lovesinghania398]

U r wrong jagdeep surya

[@harishkiran3663]

Please do a video on the Naval capabilities/version of Tejas as demonstrated by carrier landing and take off.

[@BennyCFD]

Can do you a video on the engineering thought about why some fighters go with a single engines and others go with two. The are smaller fighters like the F-5 is pretty small has two engines, and very large fighters like the F-8 Crusader, or the F-105 had one engine.

[@krishnakaanth7881]

Sir pls check the audio.. Sometimes it is louder sometimes it is not audible, when we keep it in the same amount of sound .. pls make it clear sir.. thank u for the great vedio..

[@naanuunkownu]

Hope KAVERI comes alive and bring smiles of crores of indians. Jai hind

[@rishisharma5860]

Good video

[@saiecorp5646]

Very nice and informative video. 😎

[@nitul4591]

Sir....what do you think of Tejas mk2.....plz give a detailed video.....

[@neo3804]

Good work bro , then you must be knowing where kaweri engine is going to work . 🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳🇮🇳

[@user-dj6pk4ts6l]

Ever heard of JF17 😎. Intergalactic Warship.

[@peekaboopeekaboo1165]

JF-17 got Russian engine.

[@user-dj6pk4ts6l]

@@peekaboopeekaboo1165 JF= Junk Fighter 🤷🏻‍♂️

[@peekaboopeekaboo1165]

@@user-dj6pk4ts6l Ar Junk

[@kamran945]

Thanks for giving us a deeper insights of difficulties faced by GTRE to develop Kaveri Engine and mind this all was done without stealing technology from West like some rogue nations do. And you can apply Aloe Vera gel to get rid off dark eye circle.

[@naveenarora6467]

Actually west was the one that stole tech from each other and Mainly germany hence such developed tech now. And we all know where the Nazis learnt this tech from cough cough(stolen sanskrit texts)

[@yosup125]

Hey never put down other countries. We can do our best without insulting others. And also never give beauty advice unless the person asks for it. It is considered disrespectful.

[@imaysin97]

@@naveenarora6467 "stolen Sanskrit texts".....😂😂 Amazing what ignorance does to people.

[@Amar-fd7cg]

@@imaysin97 I think he was being sarcastic lol... But I totally get what you're saying OTOH

[@imaysin97]

@@fortune4302 😂😂😂 well so what you're saying is that It actually took some foreigners to find the "knowledge" present in our own sacred texts that we had for the past few thousand years. Well kudos to them for this great effort.

[@Ashish-of1go]

Awesome vidoe .. great insights...will you please make a video on the Avro Arrow?

[@harkamelrandhawa7125]

Wow very insightful. The tejas seems to try to fill the mig 21s role with iaf. A low cost fighter used mainly for training and operations that are not in a war scenario. So its a maritime low cost fighter. But I think the tejas is a little outdated and the Indians need to rethink the concept. The american company Northop made the f20 in the 80s. It lost to the f16. Could the Indians make a similar f16 aircraft but at a lower cost. I. Think the Israelis use the f16 for training so it's not super expensive per flight hour. I think if Indians could rid itself of curruption they could make an equivalent f16 with much lower cost per flight hour or atleast a mirage 2000 sized aircraft with a better engine. I think 120kn minimum thrust

[@unclejoeoakland]

Seems to me that India is having trouble developing something really up-to-date because she simply doesn't have a very old and widespread aerospace sector. Of course the only solution to that in the long term is to start building one. The Tejas looks like what you describe- not cutting edge but competent and useful for teething.

[@harkamelrandhawa7125]

I think India may throw the lca tejas into combat with Pakistan as it did with the old mig 21 early last year with Pakistan. That inevitably resulted in the loss of that aircraft. But then again they may not as it will embarrass them. Its hard to make out what really happened due to lies on both sides last year with the mig 21 lost but I think it's clear. To be an effective fighter you need to be able to change altitude quickly so climb rate is important. Need to get high to fire a missile to enable the missile to go far then drop altitude so enemy missile looses its efficacy and gets confused with ground clutter. I don't mean to offend the Indians I too am one but I think it would be wise to do away with the tejas and aim for something like the Chinese j10 as the single engine light fighter. And for medium combat the rafale and typhoon. Both are incredible. I think the su27 family fighters have the size to carry many missiles and fuel large radar to be effective. But I also think there still is a place for the mig 31 or the mirage mach 3 fighter concept. Its kinematics enable the launch of the kinzhal missile which can go further and will be difficult. To intercept because of speed. Something like the mig 31 can threaten awacs systems and other platforms in hit and run tactics. The iraqi air force downed an f18 with a mig 25. But Fielding such a machine is expensive and fuel intensive. I guess maybe I expect too much for the Indian airforce but I don't see the tejas to be any more than the new tx trainer for the US airforce. Maybe marginally better.

[@harkamelrandhawa7125]

I see your point. The tejas is in the same class as the gripen c. And no doubt there is a place for low cost fighters in this world for close airsupport and to put up against early f16s and jf17. I been watching the tejas perform. I have doubt they have the GE 414 engine i think they may be using the f404 engine that is of an earlier generation and is much less capable. I was simply thinking an aircraft which has a top speed of mach 1.6 at altitude in clean configuration when equipped with weapons and drop tanks even though they are jettisonanble could such a fighter achieve supersonic flight whilst climbing and diving in modern air to air engagements with all that added drag. I remember the Chinese helped develop the jf17 thunder but found no place for it in their airforce. But in counter insurgency or low intensity war the jf17 and tejas are perfect low cost options. And cost effective maritime operations between the two counties as no one wants war. A bit off topic was I think a redesign of the tejas in the form of the x31 nasa's research plane with the GE414 engine will b free a potent fighter. On KZbin there's some rc versions that are brilliant and the wrong design is better in that it seems to have a bit more better wing loading on the cranked delta than the original x31. I think those x31 rc jets are a better platform than the tejas.

[@thesidd19]

Good joking kid

[@supratiksaha2001]

At first gather some real practical knowledge about fighter jets then bark.

[@Olive_Chap]

Even though Kaveri was not enough for Tejas but it should have been salvaged into marine engine... once read article about CNS keen on getting it done but don't know where this naval project lost

[@amartyamishra9802]

thanks for the video. if possible, please add English subtitles to your videos.

[@nikkixeus]

Informative video 💯

[@paracommando2612]

very nice analysis.

[@sonuchauhan-ne3cj]

Videos on the history of other engines please.

[@bikaskumarthakur2719]

Why did you not make a video of Tejas mk1 that is the currently induced in Indian air Force and compare sab gripen fighter jet

[@chronus4421]

Wow, your camera was most unkind to you during the filming. I always enjoy your content though!

[@publicwale1102]

Hey India wants to know about Tejas MK2 please make a detailed analysis...Thanks🇮🇳

[@JokerJoker-xc7xb]

Its hasnot been Produced and Inducted on IAF... Even it hasnot takeoff its 1st Flight for Testing Purpose,so how he can give a Practical Detail anaylsis???? apply some Logic Bro

[@gokulkannan1845]

There is no need for technical assistance because the Al- 31 fp engine used by the su 30 mki are being made in Nashik facility from scratch.Those engines are more powerful and perform better.so,the GTRE or Indian govt could send it's Engineers to that facilities and could derive the technology for the Kaveri engine.But they won't do it because they won't get any commission doing it but they could get commission with foreign collaboration.Thats the reason for the delays and technical assistance. Crores and crores of Indian tax payers money is being wasted in the name of development and collaboration.

[@Amar-fd7cg]

AL-31FP isn't completely made in India. The hot section is still imported directly from Russia, even maintenance work on the turbine section is sent to Russia. No country out there will ever sell single crystal blade technology to anybody else. It is like the technology used to make a nuclear bomb, only thing is that more countries know how to make a nuclear bomb than cast single crystal blades. India is starting from scratch while GE and Rolls-Royce are in their 5th/6th generation SC blades. The uploader talks about the design turbine entry temperature is 1700K. Current commercial airline engines have a TET of 2000C (2273K). GTRE isn't going to catch up anytime soon.

[@shouvikk1]

@@Amar-fd7cg Both are completely different class of engines. Al31 is way bigger and heavier and not suitable for current airframe design India is planning. Actually Kaveri has higher TET than AL31 and HAL is making SCB for Al31 from raw materials supplied by Russia.

[@Amar-fd7cg]

@@shouvikk1 Every time I went to the GTRE booth at Aero India, I've only seen them talk about directionally solidified blades. If what you say is true, then HAL has the know-how, while GTRE is struggling, and is willing to pay top dollar to Safran or Rolls-Royce for this technology. Both HAL and GTRE fall under the defence ministry. Nothing prevents them from sharing information with each other unlike ISRO and DRDO (where India maintains the stance that it does not use tech developed for the space program in the missile program, which is why other space agencies can trust ISRO while collaborating on multitude of programs). More damning than performance issues, are engine life, reliability and serviceability track record for any aero-engine. As a guy who works on actual commercial aero-engines, I know that the processes that bake in sound engineering were developed over 50 years of iterative experience. This is something that I've noticed lacking in the bulk of Indian industries that work on engineering. HAL and GTRE are horrible when it comes to appreciation of holistic systems engineering. And yes, I'm aware that the AL-31 and the Kaveri are entirely different thrust classes. I don't understand why you would assume that I was suggesting that both were inter-changeable.

[@stupidburp]

Part of the reason for seeking another source for fighters is to mitigate the low availability rates of Russian fighter designs. Another important reason is to have portions of the total force dependent on completely separate sources of supply to mitigate the risk of potential logistical disruptions. Combining multiple foreign sources such as with Tejas defeats the point of an indegenous design. It is more effective to go with multiple licensed designs from different sources until a 100% domestically sourced aircraft is feasible. Partnering with Dassault and Safran with Rafale and M88 for near term needs is one way forward to reach that goal in some future aircraft such as AMCA.

[@sabertornado786]

Sir, can you do the video on the feasibility of Turkish fifth-gen fighter TAI TFX? Please

[@Sir_Godz]

when does the shelf give way?

[@kramsnarayanan2098]

DRDO successfully developed the Single crystal blades for the engine, recently. Indian Government changed the plans and is going to develop a 110KN engine which is going to be a joint venture.

[@Tadesan]

Has it passed the dung ingestion test as mandated by the Indian government?

[@shounakkatke435]

Thank you for the video. Please also make a review video of jf17.

[@joeblowme5427]

it sucks

[@csabascs5913]

JOE BLOW ME But still much better than Tejas.

[@csabascs5913]

shounak katke Yes, please do! It’s a similar plane and a direct competitor/adversary of Tejas, but it has a very different concept and development history! It’d make a very good contrast. Also it’d show that your channel is neutral and balanced, and has no pro-indian bias.

[@thesidd19]

@@csabascs5913 a so called 4th gen chinese jet which doesn't even have quad axis fbw And u say its better 😆

[@csabascs5913]

@@thesidd19 Yes, I consider it better than a 3rd gen indian jet that's been retrofitted with 4axis fbw at the end of a 30 year development period in the false hope of saving its relevancy. ;) Well, actually I think that they are quite close with JF-17 being somewhat better. In some areas (e.g. aerodynamics, onboard systems, ew, bvr missiles) the JF-17 has the edge, in some others (e.g. engine, fbw, maybe radar) The Tejas. The main problem of the Tejas imho is its way outdated aerodynamics due to the extremely long development cycle caused by lots of delays, concept changes, etc. Even the indian air force itself is quite disappointed with its aerodynamic performance. Sure, fbw helps somewhat, but it cannot make wonders. You can't create lift out of 0's and 1's, so it's gonna remain a huge limiting factor throughout the Tejas' service life. Because of this, its upgrade potential is very limited too. The JF-17 has much more upgrade potential, imho, due to better aerodynamics. In addition, JF-17 development started in 1999 and it's fully operational since 2010, while Tejas development started in 1985 and it's expected to be fully operational in 2023 only. So the JF-17 is not only a better aircraft but a much more successful project too.

[@PrivateEyeYiYi]

If a plane requires adequate aerodynamics, structure, and propulsion to succeed, does that leave the SU57 coming up short in one area, specifically propulsion?

[@harkamelrandhawa7125]

I think India should drop the tejas concept as it lacks capably and try to make something similar in size and capability to the j10. A simple low cost but good kinematic performance and an ability to carry and deliver weapons.

[@wellbeing6198]

Even Chinese who can reverse engineer are not capable enough in engine tech of fighter aircraft. India should continue its efforts. But DRDO is a lazy org which has produced shabby and inefficient products till date. What irks me is the fact even with licensed production DRDO could not even try to come up with similar form of engine from sukhois. It's shame. Chinese learn a lot while licensing and producing similar products

[@hiteshadhikari]

Drdo does license manufacturing? Leave this, do you even know what DRDO is?

[@FinnisJaeger]

Kaveri is Finnish and means friend

[@user-kj9cs8ok9n]

It's a river in India

[@tomorrowland2684]

I am not sure why we are over optimistic with the delivery of engines. We may have experienced how to develop jet engines but material science is where we are behind as they require time and research. So right now we use F414 and F404 engines and gradually may be in 10 years we may have a reliable engine. It takes time, talent and money. US, Europe attracts a lot of talent and we rely only on local resources and thus take time. We don't even have testing site for engines and relying on Russia. So go slow on the optimism of an indigenous engine in 3 to 5 years.

[@nishant115me]

indian govt is working will sign a deal with rolls royce for co development of a new engine for its all future fighter jet programs.

[@GreatComparisons]

Please make a video on Russian Jet engines

[@vvgame]

“India defense is constantly boiling” Le DRDO, GTRE , ADA - Yeah Baby !! 😂

[@DB-MH11]

Interesting Puzzle for you guys... if my kid is of same age today as I was when I first read about Kaveri engine... how old my grandchild will be when Kaveri engine finally flies?

[@annalisajohn]

Hope modi government means the answer is negative 20

[@Xdddd422]

Make a video on AMCA please..

[@therisingleadershivam1297]

🖱😍😍😍😍😍😍😍🥰🥰🥰🥰nice dude

[@diwakarsingh8464]

Nice name bro

[@brucewayne1636]

@@diwakarsingh8464 haha

[@stupidburp]

Tejas was useful as a research project but is underwhelming as an operational modern fighter. With the numerous foreign produced parts the whole point of an indegeously produced fighter is also largely undermined compared to licensed production of foreign designs which could potentially even allow a higher percentage of domestically produced parts. Kaveri engine development has reached a dead end without technical assistance. Safran has offered such assistance for Kaveri as part of a deal to produce M88 engines in India if Rafale are acquired in large numbers.

[@supratiksaha2001]

75% components are Indian and LCA program also exposed the technological sectors where more investment and research is needed so basically it gave us a lot of experience which will be so much useful in future.

[@stupidburp]

@@supratiksaha2001 Rafale could be licensed for domestic production with 90% of parts made in India immediately. Also, the foreign parts are all from a single country which is preferrable in this case. Tejas has parts from multiple other countries and a supply disruption from any one of those countries could ground Tejas because the parts are specialized to each source. Having 10% of parts vulnerable to disruption from a single country is less risky than 25% of parts from several countries. In the future 95-100% of Rafale parts could potentially be made in India. Tejas will never reach 100% - it took 30 years just to get to 75%. The research part of the program was absolutely useful though, I agree. It could also serve as a temporary low end replacement for MiG-21 and later serve as a combat capable capstone trainer and aggressor aircraft. It just isn't ever going to be a high end fighter, even with the expected avionics upgrades and was not intended to be. It was intended to fill the low end light fighter niche, which it does to some extent but light fighters are rapidly becoming dinosaurs because of developments in modern missiles. It would have been an adequate replacement for MiG-21 back in 1995 but is late now and never met all targets, which were probably too ambitious. India could continue to throw time and money at it but the primary research benefits have been realized and it is better to move on to AMCA. Back in the 1980s India should have acquired many more Mirage 2000 and MiG-29 to replace all Jaguar and MiG-21but the government at the time wasn't willing to pay for them and the expected delivery date and capabilities of a new indigenous fighter were unrealistic. Just imagine if India had a force today with these newer fighters in large numbers on the low end (instead of just small numbers in the middle) to complement SU-30MKI and Rafale on the high end. The pressure to replace them would be much less urgent than the current needs to replace MiG-21 and Jaguar. Bear in mind others did just that, replacing Jaguar with Mirage 2000 and MiG-21 with MiG-29 and some are still in service.

[@devendersuhag6968]

Sir please meke video on Bramos , fastest supersonic cruise missile🙂🙂🙂🙂🙂🙂🌍🌍🌍🌍🌍

[@erenyaeger9407]

Bheek maangana band kar

[@chandankumar-yi3ml]

Can figter Jet made from ramjet engine.

[@andrewlambert7246]

Yes it can. Like the SR 77.

[@babinbabi87]

Tejas❤❤❤❤❤❤❤first comment and like

[@yosup125]

Hey man stop the first comment and like thing. It isn’t popular anymore. Cheers.

[@joeblowme5427]

Who cares if you were first or second or third ?? why do Indians always say that shit ??? only Indians do it

[@yosup125]

@@joeblowme5427 it’s aight dude. As long as it’s not malicious or hurting anyone it’s okay. The behavior will change slowly.

[@omgoyal3270]

can you kindly share what is the percentage of Indian views on your videos? it can be seen from your youtube stats page, only you can view it.

[@csabascs5913]

OM GOYAL I suppose it’s getting closer and closer to 100% with each Tejas video... :D

[@hansmeyer7225]

Pavan Kumar Not many and most people on yt are no military analysts

[@roygupte3480]

When we have an 110-120 kva engine made in India with help from anybody will be one of the best in the world.

[@erenyaeger9407]

Pagle yah to banale bhai

[@adityatimes2454]

♥️♥️

[@sujitsk]

M Natarajan former Head of DRDO who refused design assistance from Pratt & Whitney now sits comfortably on a fat pension while the rest country sucks its thumb!

[@तरबुज_खाने_वाला_राक्षस]

Jail m bhejo gaddar ko.

[@SZEEONiX]

Found it

[@chandrachurniyogi8394]

the Kaveri is trying to realise a dream without having an aim to fulfill that dream!!! rumor is that after 28 yrs of failures the Kaveri project will be scrapped & new turbo fan engines will be sourced either from Pratt & Whitney or IAE!!!

[@8ooo8ie]

Why the quality of video looks like it's from 90's???

[@hiteshk8758]

How about a video on Chinese hypersonic missiles

[@user-pw4ls9qf6v]

158 likes and 0 dislike...

[@dvoray]

Hi can u make a video on HAL' other aircraft and helicopters... Also if possible difference between core technology of Indian and other engine manufacturers...

[@csabascs5913]

Debabrata Ray Please don’t if you don’t want to lose all your non-indian subscribers! We want a broader spectrum of content, not just HAL, Tejas, and indian technology.

[@csabascs5913]

@Sumit Barik No, it's really interesting, it's just getting too much, and it's inviting too many annoying fanboy comments, heated debates, and hateful remarks. I have no problem with returning to it later, but there are so many other interesting subjects to discuss! I don't want this channel to become a battleground of indian and pakistani fanboys, or the ultimate 'champion' of either side...

[@user-fx2oo3bi9c]

Kaveri program Today : yes we can do it Tomorrow : we can't Day after : we sure can . Day after : money wasting ditch Day after : we sure can Day after : not suitable Day after: we can make better Day after ; no improvement ditch

[@harsh9558]

Day after: now we will start with new version as old version failed.

[@harsh9558]

i.e. never give up

[@user-fx2oo3bi9c]

@@harsh9558 Loading..... Day after : we never change .

[@basavarajubr9355]

Corrupt official (both in civil & airforce) lobby is sabotaging the indiginous development of "KAVERI" engine.

[@supratiksaha2001]

Why don't you make a jet engine if you have more knowledge than those engineers?

[@sambasivarao98]

Any new inventions shall requires whose amounts.our leaders want new inventions and leader ship in innovations.they wants power and money by brokerage.

[@mallred4347]

Why not do a video comparing the F35 to the tejas engine(goliath vs david)????

[@तरबुज_खाने_वाला_राक्षस]

Tejas will be fighting Chinese jets not f35.

[@AvroBellow]

Actually, there are 4 factors: You forgot armament. A plane can have great propulsion, aerodynamics and structure but if uses substandard weapons, it will be a a serious disadvantage.

[@Millennium7HistoryTech]

Broadly speaking, you can add and update weapons and systems without re-designing the aircraft, you can't with propulsion, structure and aerodynamics.

[@AvroBellow]

@@Millennium7HistoryTech That's a very valid point. I say armament because it's one of the things that makes the Gripen so potent besides it's incredible EW suite.

[@AvroBellow]

@@death_parade That would be foolish of me since I have no idea what armament the Tejas has. India has a very healthy tendency to get weapons from wherever they get the best deal. I wouldn't expect them to use anything but American or Russian weapons which are both quite good.

[@bullseye6969]

@@AvroBellow largely Russian, American weapon and armaments are very expensive for just few % incriment in quality. I would say India should develop that indigenously too

[@sagardyenchilwar8762]

I will not call kaveri a failure Its dry varient is going to power ucav ghatak/Aura though it doesn't reached the mark that we hoped Its not a total failure Moreover its delays were quite long But the main reason was lack of testbed here in india We cant blame are engineers Now its facing major problem with trust issues Though we acheived a lot in the journey

[@nishantshrivastava9674]

U r very balanced with ur choice of words 😜 and have successfully dodged all the hyper nationalist, anti colonists type viewers 😂😂😂

[@varun2250]

What's wrong with anti Colonialism? If you favor it, explain why.

[@nishantshrivastava9674]

@@varun2250 I was jst implying "a single rude word" from admin and comment section would have been flooded with.. U white europeans are jealous, u never want to see us grow and bla bla. I used the word anti colonists because that group from India see every white man as a colonist😝😝😝 Admin would have been abused as if he is a colonist even he is from Italy Or sweden. And i don't think any of those countries colonized india.

[@rupammedhi9943]

Sir, this time give u enlightenment on china's WS engines..

[@darveshzamindar]

DRDO MEANS DEFENCE RESOURCES DRAINING ORGANISATION. It wastes lot of money.

[@luisalizondo4973]

Jas 39 forever

[@gopaljee1467]

If india has to stay relevant it should buy engine technology Other wise it will make a engine of 2nd generation in 2035

[@bullseye6969]

Or they can increase its funding and expand its R & D team.

[@mangeshchalan8786]

We had the wrong governments so we didn't succeed

[@dranzergigs8333]

🤣 it doesn't matter which govt is in power. The entire system is the problem.

[@jai598]

Yeah of course bjp is a God White clean government, and Congress is the reincarnation of evil, that's what you're saying

[@तरबुज_खाने_वाला_राक्षस]

@@jai598 bhakt hai sala.

[@richardyoung377]

replace them with elephants

[@praveen5085]

Hi corona Chinese

[@ScoobyDoo-zp1sq]

So 30 years later and millions of dollar of foreign assistance… they still don’t have a deployed engine 😅

[@anitathakur9340]

No u wrong

[@guru8104]

He said it himself designing an engine from scratch is not an easy job. And they have deployed the engine.

[@theunbeatable1755]

Millions is very less investment china invested billions and still hasn't made a engine for j-20

[@manassurya2019]

I've lost hope on the Kaveri Engine. There's a reason only 4 countries in the world can make reliable turbofan engines. It's far more complicated that a rocket engine and a closely guarded secret. I think the best route is for India to contract Engines to France, in the 98 KN class for Tejas MK2. It would be a better option than buying f414 engines from the Americans, who are not as politically reliable for India.