HAL Tejas | Updates, News & Discussions

[sancho]

Jeez and then we wonder why the LCA program is so delayed!

The sad thing about this is, that IN officials stated the same during a presentation at AERO INDIA 2009 and precisely even mentioned the gear. So when ADA still haven't changed it, what does it tell us about the cooperation between them and IN in the last nearly 3 years? And doesn't it confirm what the article sudhir007 posted earlier, about DRDOs and ADAs ego trips and overstimations about this LCA development?

 

[sameer soz]

this discussion has no relevance if done with bias, if the discussion is for LCA, then talking high about JF 17 has no relevance, since we all know & agree that JF 17 has lots of deficiencies & on top of that this plane is going to be main fighter aircraft for another 15-20 years. So that is the reason for the high nos. On top of that Pakistan as we all know cannot afford a superior plane so has to do with cheap technology provided by china, by the way China still has to develop engine themselves till that time they too are dependent on Russia. ??????? (On top of that even they are not using this plane for their AF).

1 JF 17 = 10-15 Million USD. (One of the cheapest plane)

So, we may talk or brag whatever it's a poor man's plane with lots of deficiencies & as for LCA for which we are discussing, we all know that the main aircraft for next 15-20 years will be Su-30 Mki, Dassault Rafael, Upgraded Mig 29, PAK FGFA (5th Generation fighter) & all these planes are costing upward of 35 Million USD. So, one has to live with once deficiencies as Pakistan cannot afford superior technology on account of economic woes. So there China steps in & provides technology which is easy & cheap for use

 

[sudhir007]

Flight test update
LCA-Tejas has completed 1821 Test Flights successfully. (09-April-2012).
(TD1-233,TD2-305,PV1-242,PV2-219,PV3-336,LSP1-71,LSP2-205,PV5-36,LSP3-47,LSP4-48,LSP5-77,LSP7-2)

from

LCA-Tejas has completed 1818 Test Flights successfully. (03-April-2012).
(TD1-233,TD2-305,PV1-242,PV2-219,PV3-336,LSP1-71,LSP2-205,PV5-36,LSP3-47,LSP4-47,LSP5-75,LSP7-2)

 

[sudhir007]

Flight test update

LCA-Tejas has completed 1824 Test Flights successfully. (11-April-2012).
(TD1-233,TD2-305,PV1-242,PV2-220,PV3-336,LSP1-71,LSP2-205,PV5-36,LSP3-47,LSP4-49,LSP5-78,LSP7-2)

from

LCA-Tejas has completed 1822 Test Flights successfully. (10-April-2012).
(TD1-233,TD2-305,PV1-242,PV2-219,PV3-336,LSP1-71,LSP2-205,PV5-36,LSP3-47,LSP4-48,LSP5-78,LSP7-2)

 

[Sergi]

Any news of Navel prototype ???

 

[rockstarIN]

AN APPROACH TO HIGH AoA TESTING OF THE TEJAS LCA

1.
Introduction.
Modern fighter aircraft are a complex combination ofaerodynamic designs, flight control systems, and engines. These modern designsdemand modern test methods to evaluate their Out-Of-Control Flight (OOCF) and HighAngle-of-Attack (HAoA) characteristics. Testing has traditionally progressed fromapproach to stall maneuvers through full stall series to spins and stalls with aggravatedinputs. This approach to testing has evolved significantly with the introduction of highlyaugmented flight control systems in increasingly maneuverable aircraft throughdecreased stability. Advances in control system technology and to a lesser extent,aerodynamic design, have led to a shift of emphasis from investigating post stallbehavior and recovery to prevention of departure in modern combat ac. The fly-by-wireflight control laws resident in the Tejas LCA, in addition to providing the basic commandand stability augmentation functions, will also include departure prevention throughboundary limiting / carefree maneuvering features to enable the pilots to fully exploit thecapabilities of the airframe. The departure resistance features in the control laws alsomaximizes the useful angle of attack range of the aircraft while maintaining adequatelevels of stability. Provision of a boundary limiting function in the control laws in theinitial phase of flight testing does not guarantee that the aircraft will not depart duringlarge amplitude maneuvering since the aerodynamic data used for control laws designare based on wind tunnel data which can exhibit different characteristics in flightespecially at higher angles of attack where the data is highly nonlinea

Full text at
Approach to High Angle of Attack Testing of Light Combat Aircraft [LCA] Tejas

 

[eddie01]

why LCA resemble with mirage 2000 so much?

very simple both are fighter planes and can drop bombs and missiles...

 

[anathema]

Tarmak007 -- A bold blog on Indian defence: Tejas on campaign mode to complete IOC-2 missions

Tejas sorties have seen an all-time increase in the last one month. Currently the PV-2, PV-3, LSPs 1, 2, 3, 4, 5 & 7 are flying. All the platforms have come out of the delay and the fuel tank concerns have been addressed. The re-arranging of the butting of fuel and hydraulic pipes is perfect now. We have clocked up to 30 sorties in March and hope to up it further,” HAL sources said.

Sources say that the Tejas would head for another round of weapon trials in May and June as part of the IOC-2 schedule. “These trials would be spread across Goa, Pokhran, Jaisalmer, Chitradurga among others. K A Muthanna, the head of National Flight Test Centre – the nodal centre for Tejas test-flying – flew the Tejas last week. This was his first flight on Tejas,” sources said.

 

[sudhir007]

HAL Gears up and starts Aggressive campaign mode to complete Tejas IOC-2 schedule | idrw.org

India’s Light Combat Aircraft (LCA) Tejas has entered into an aggressive campaign mode to catch-up with the lost time, post Initial Operational Clearance (IOC-1) phase. Sources with Hindustan Aeronautics Ltd (HAL) tell Express that currently eight platforms of Tejas are racing towards completing the parameters of IOC-2.
“Tejas sorties have seen an all-time increase in the last one month. Currently the PV-2, PV-3, LSPs 1, 2, 3, 4, 5 & 7 are flying. All the platforms have come out of the delay and the fuel tank concerns have been addressed. The re-arranging of the butting of fuel and hydraulic pipes is perfect now. We have clocked up to 30 sorties in March and hope to up it further,” HAL sources said.
Team Tejas has lost over six months of crucial time in the flight programme during the last one year, leave alone the overall delay in the programme. The 13th and last aircraft from the Tejas development-phase flight-line (LSP-8) is scheduled to fly in June, while the 12th one flew recently.
Sources say that the Tejas would head for another round of weapon trials in May and June as part of the IOC-2 schedule. “These trials would be spread across Goa, Pokhran, Jaisalmer, Chitradurga among others. K A Muthanna, the head of National Flight Test Centre – the nodal centre for Tejas test-flying – flew the Tejas last week. This was his first flight on Tejas,” sources said.
The Indian Air Force (IAF) too is warming up to raise the Tejas Squadron (Flying Daggers). Express had earlier reported that the IAF wanted HAL-Aeronautical Development Agency (ADA) combine to complete the closure of development phase at the end of IOC-2.
Plane photo politics? Sources in HAL say that the company officials have put restrictions on releasing Tejas photos and videos to media and even to Tejas work partners, including ADA. If this bit turns out to be true, then one can expect some ‘photo-finish’ moments in the days ahead.

 

[rockstarIN]

DRDO to test indigenous scram jet engine next year
NEW DELHI Defence Research and Development Organisation (DRDO) will test the indigenously developed scram jet engine next year, according to DRDO chief VK Saraswat.

“We have demonstrated the performance of a scram jet engine operating at Mach six speed (six times the speed of sound),” he said in an interview given to Doordarshan.

Theoretical projections place the top speed of a scramjet between Mach 12 (15,000 kmph) and Mach 24 (29,000 kmph), according to Wikipedia.

The fastest air-breathing aircraft is a SCRAM jet design, the NASA X-43A, which reached Mach 9.8. For comparison, the second fastest air-breathing aircraft, the manned SR-71 Blackbird, has a cruising speed of Mach 3.2.

After the successful launch of Agni-5 Inter-Continental Ballistic Missile (ICBM), India is all set to develop reusable rockets which will combine the technologies of both ballistic and cruise missiles.

On the range of Agni-5 missile, which was successfully test-fired recently off Odisha coast, he said with moderate modifications, “it can be extended to any range which is of our interest.”

On the technological capability available with the agency, he said: “DRDO has built the necessary technologies, production infrastructure and design capability for developing a booster or a sustainer.

“We have the capability to develop a re-entry nose cone which can withstand higher temperature and velocity.”

Reacting to reports that India does not possess sufficient indigenous technology for missile guidance systems, Saraswat said Agni-5 has used a completely indigenous and high precision missile guidance system with “0.001 degrees of per hour accuracy.”

On criticism that DRDO sometimes does not live up to expectations, he said the agency was as good as its counterparts in advanced countries.

“The Light Combat Aircraft (LCA), F-18 and Eurofighter took similar number of years and cost wise they were three times more than what we have put in our LCA,” he said.

On the development of the Kaveri engine, Saraswat said it has performed well and was, “flown on an IL-76 aircraft in Russia for 55 hours of successful flight. We are going to upgrade it so that it can be used in India’s LCA Mark-II and future systems.”

 

[Sergi]

HAL Gears up and starts Aggressive campaign mode to complete Tejas IOC-2 schedule | idrw.org

India’s Light Combat Aircraft (LCA) Tejas has entered into an aggressive campaign mode to catch-up with the lost time, post Initial Operational Clearance (IOC-1) phase. Sources with Hindustan Aeronautics Ltd (HAL) tell Express that currently eight platforms of Tejas are racing towards completing the parameters of IOC-2.
“Tejas sorties have seen an all-time increase in the last one month. Currently the PV-2, PV-3, LSPs 1, 2, 3, 4, 5 & 7 are flying. All the platforms have come out of the delay and the fuel tank concerns have been addressed. The re-arranging of the butting of fuel and hydraulic pipes is perfect now. We have clocked up to 30 sorties in March and hope to up it further,” HAL sources said.
Team Tejas has lost over six months of crucial time in the flight programme during the last one year, leave alone the overall delay in the programme. The 13th and last aircraft from the Tejas development-phase flight-line (LSP-8) is scheduled to fly in June, while the 12th one flew recently.
Sources say that the Tejas would head for another round of weapon trials in May and June as part of the IOC-2 schedule. “These trials would be spread across Goa, Pokhran, Jaisalmer, Chitradurga among others. K A Muthanna, the head of National Flight Test Centre – the nodal centre for Tejas test-flying – flew the Tejas last week. This was his first flight on Tejas,” sources said.
The Indian Air Force (IAF) too is warming up to raise the Tejas Squadron (Flying Daggers). Express had earlier reported that the IAF wanted HAL-Aeronautical Development Agency (ADA) combine to complete the closure of development phase at the end of IOC-2.
Plane photo politics? Sources in HAL say that the company officials have put restrictions on releasing Tejas photos and videos to media and even to Tejas work partners, including ADA. If this bit turns out to be true, then one can expect some ‘photo-finish’ moments in the days ahead.

Can anyone guess what's this "some ‘photo-finish’ moment" would be ???

 

[sangsharma]

Can anyone tell when LSP6 and 8 will be flying?

 

[sancho]

On the development of the Kaveri engine, Saraswat said it has performed well and was, “flown on an IL-76 aircraft in Russia for 55 hours of successful flight. We are going to upgrade it so that it can be used in India’s LCA Mark-II and future systems.”

Great, so it's useful to power IAF IL 76, oh no wait, the Russian PS 90 engines offers nearly three times the power in drythrust. So all this flight has shown was, that it is working in general, not that it is useful for "any" aircraft we have or develop currently for IAF.
Also the part that he left out is, that it will a co-developed K10 will be the upgraded version to power LCA MK2s and future systems (AMCA) not DRDO's own developed engine.

So to put it in the right words, DRDO has developed an engine that is useless and is not able to further develop it alone, to make it useful!

 

[sudhir007]

Can anyone tell when LSP6 and 8 will be flying?

LSP-6 is converted into NP-1 (naval version) which is not properly fly next weekend and about LSP-8 it will fly on Aug-sept later yr.

 

[sancho]

LSP-6 is converted into NP-1 (naval version) which is not properly fly next weekend and about LSP-8 it will fly on Aug-sept later yr.

But wasn't LSP-6 meant to do the high angle of attack tests with the new flight controls system? Also NP-1 must have the LEVCONS as well, while LSP-6 is a version of the airforce LSP-7 version right?