ADA Tejas (LCA) News and Discussions

[ersakthivel]

Interesting side notes,

http://doc.assofond.it/13th_World_C.../lectures/TechnicalEngineeringLecture/T17.pdf

A very useful link to DMRL's SCB/DS & BLISK effort plucked from BR, which says that DMRL has developed SCB tech that can withstand 100 deg C more temp than the currently imported DS blades for Kaveri jet engine effort.

And it is in the process of passing on its breakthrough tech to indian private firms.

What is interesting is that the investment casting tech used world over in Single Crystal Blades originated from india , with a fine piece of Harrappan dancing girl in 3500 BC!!!

indigenous kaveri effort to deliver a more potent engine when tejas mk1 A when it comes for engine change after a decade is progressing well,

 

[ersakthivel]

HAL aren't an engine manufactuerer. GRTE (DRDO) are the apex engine makers in India and like all R&D feilds in India have been underfunded for decades, even China (whose economy is >7 times India's) hasn't built a reliable engine yet.

HAL is the engine builder,
DMRL is the Super alloy & vacuum Investment casting process for SCB tech developer,
GTRE is the engine, design, test, certification center,

HAL & GTRE are situated close to each other in bangalore,

Interesting side notes,

http://doc.assofond.it/13th_World_C.../lectures/TechnicalEngineeringLecture/T17.pdf

A very useful link to DMRL's SCB/DS & BLISK effort plucked from BR, which says that DMRL has developed SCB tech that can withstand 100 deg C more temp than the currently imported DS blades for Kaveri jet engine effort.

And it is in the process of passing on its breakthrough tech to indian private firms.

What is interesting is that the investment casting tech used world over in Single Crystal Blades originated from india , with a fine piece of Harrappan dancing girl in 3500 BC!!!

 

[ersakthivel]

During the meeting, the progress of Tejas was reviewed by Parrikar, who has now emerged as the strongest supporter for the home-grown project.

I'm sure he must have instructed IAF to find that UNKNOWN OFFICER who gave false news to NDTV

Face of Raha must have clicked during that meeting who only wants Rafael

ha, ha, There are no unknown IAF officers, entities like Rajat Pandit, Times of India,NDTV, Indian Express , pull sources up their Ass and attribute all the their crap to "unnamed IAF officers"!!!

This is the trick played by vested interests from time immemorial akin to the "world's oldest" profession.

 

[ersakthivel]

It will be lighter in weight and shall have 8% lower drag 60 kg additional fuel. If the weight is reduced by 500 kg, than this plane shall perform totally differently. simulation study of vivek ahuja has revealed this.

Even today HAL official quoted that mk1 A will have some weight savings.

if you want to read true info abt tejas then read artcles in mathrubhumi, Ananth krishna of TARMAK007 & saurav jha,

if you want tons of crap then read entities like Rajat Pandit, Times of India,NDTV, Indian Express , pull sources up their Ass and attribute all the their crap to "unnamed IAF officers"!!!

This is the trick played by vested interests from time immemorial akin to the "world's oldest" profession.

 

[garg_bharat]

ha, ha, There are no unknown IAF officers, entities like Rajat Pandit, Times of India,NDTV, Indian Express , pull sources up their Ass and attribute all the their crap to "unnamed IAF officers"!!!

This is the trick played by vested interests from time immemorial akin to the "world's oldest" profession.

Please educate @abingdonboy the engines made by HAL under license, both western and Russian, and the engine workshops that exist in HAL.

Kaveri is the Indian design. This is not the first engine built by HAL.

 

[AnantS]

Interesting side notes,

http://doc.assofond.it/13th_World_C.../lectures/TechnicalEngineeringLecture/T17.pdf

A very useful link to DMRL's SCB/DS & BLISK effort plucked from BR, which says that DMRL has developed SCB tech that can withstand 100 deg C more temp than the currently imported DS blades for Kaveri jet engine effort.

And it is in the process of passing on its breakthrough tech to indian private firms.

What is interesting is that the investment casting tech used world over in Single Crystal Blades originated from india , with a fine piece of Harrappan dancing girl in 3500 BC!!!

indigenous kaveri effort to deliver a more potent engine when tejas mk1 A when it comes for engine change after a decade is progressing well,

how does it compare with say, SCB in in AL 31 and SCB in 414?

 

[HariPrasad-1]

Even today HAL official quoted that mk1 A will have some weight savings.

if you want to read true info abt tejas then read artcles in mathrubhumi, Ananth krishna of TARMAK007 & saurav jha,

if you want tons of crap then read entities like Rajat Pandit, Times of India,NDTV, Indian Express , pull sources up their Ass and attribute all the their crap to "unnamed IAF officers"!!!

This is the trick played by vested interests from time immemorial akin to the "world's oldest" profession.

Exactly sir.

Baharine air show proved it beyond the doubt that Tejas is a contemporary plane. The simulation study by Vivek Ahuja has proved that Tejas can perform better than F 16 Any weight reduction in tejas from this stage will have a huge positive impact on the performance of the Tejas.

 

[Superdefender]

TOI, NDTV, Indian Express,etc - why are you even naming these halfbaked news agencies?! I have never seen any serious defence related program in any Indian English news channel. And we are taking advice from these fake knowledgable sources. By the way, you don't have to look into anything. Even one Chinese article admits that Tejas is the fighter of future! Need more?

 

[kstriya]

HAL is the engine builder,
DMRL is the Super alloy & vacuum Investment casting process for SCB tech developer,
GTRE is the engine, design, test, certification center,

HAL & GTRE are situated close to each other in bangalore,

Interesting side notes,

http://doc.assofond.it/13th_World_C.../lectures/TechnicalEngineeringLecture/T17.pdf

A very useful link to DMRL's SCB/DS & BLISK effort plucked from BR, which says that DMRL has developed SCB tech that can withstand 100 deg C more temp than the currently imported DS blades for Kaveri jet engine effort.

And it is in the process of passing on its breakthrough tech to indian private firms.

What is interesting is that the investment casting tech used world over in Single Crystal Blades originated from india , with a fine piece of Harrappan dancing girl in 3500 BC!!!

For Tejas MK1A we need 100 GE404, which is not yet ordered and as per my reading GE has discontinued its production. Either we have another engine in making I believe Kaveri variant will be the one with all the latest developments. With reduced weight a lesser thrust engine should do and its indigenous locally made.

 

[Superdefender]

For Tejas MK1A we need 100 GE404, which is not yet ordered and as per my reading GE has discontinued its production. Either we have another engine in making I believe Kaveri variant will be the one with all the latest developments. With reduced weight a lesser thrust engine should do and its indigenous locally made.

A fighter requires 3-4 engines replacement in its lifetime. Considering that, we require minimum 300 GE-404.

 

[garg_bharat]

I have seen such argument before that ge has discontued 404. How is that possible?

GE404 series is used in so many aircrafts. Replacement engines are needed even if plane is old. People assume HAL is crazy to accept the order of 100 units without knowing where engine will come from.

Such fears are unfounded.

 

[PARIKRAMA]

Credit to SAI SREEKAR FROM IFR 2016

L&T contribution to LCA

 

[Srinivas_K]

Credit to SAI SREEKAR FROM IFR 2016

L&T contribution to LCA
View attachment 8096

welcome to DFI !



................................

 

[tharun]

Credit to SAI SREEKAR FROM IFR 2016

L&T contribution to LCA
View attachment 8096

What is that OBOGS?...................

 

[Prashant12]

What is that OBOGS?...................

Onboard Oxygen Generating System (OBOGS)
The OBOGS produces oxygen enriched breathing gas from compressed air made available from Engine bleed air and High Power Water Extractor (HPWE). Its oxygen concentration is continuously analysed by an oxygen sensor (OS) and in-turn, monitored by ECU. The breathing gas is supplied through BGMS, QDC, DOR to the pilot at the required flow & pressure. The ECU controls, monitors and coordinates the activities related to the OBOGS, BOS, OS, BGMS, DOR and also maintains a feedback with the ECFMEU of the aircraft. The BOS provides 100% oxygen during OBOGS failure or when selected by pilot and the EOS provides oxygen during ejection. The AGV pressurizes the anti-G suit during high-g manoeuvres. The PEC interfaces the ILSS with aircrew equipment namely oxygen mask, anti-G suit and the R/T cord. QDC helps in carrying the gas supply to DOR & AGV and facilitates ejection. An overview of the integration schematic of the ILSS is shown below. All LRUs of the ILSS are under advanced stage of qualification.
http://www.drdo.gov.in/drdo/labs/DEBEL/English/index.jsp?pg=products1.jsp

 

[Prashant12]

LCA Tejas with centerline drop tank

 

[Neeraj Mathur]

is there any plan of cft on tejas

 

[tejas warrior]

I was just thinking if they can make a private assembly line for Tejas.. there is huge difference in quality..

See foe example HAL assembly line vs TATA Advance System's assembly line for Helicopters :

 

[Superdefender]

I was just thinking if they can make a private assembly line for Tejas.. there is huge difference in quality..

See foe example HAL assembly line vs TATA Advance System's assembly line for Helicopters :
View attachment 8156 View attachment 8157

Modular approach would be much more fruitful. Several private players will produce different components and HAL will integrate them under one roof.

 

[abingdonboy]

Modular approach would be much more fruitful. Several private players will produce different components and HAL will integrate them under one roof.

See above, this is what is happening.