What's new

HAL Tejas | Updates, News & Discussions

Status
Not open for further replies.
LCA-Tejas has completed 1057 Test Flights successfully. (28-Feb-09).


LCA has completed 1057 Test Flights successfully
(TD1-233, TD2-304,PV1-185,PV2-113,PV3-129,LSP1-41,LSP2-52).
113th flight of Tejas PV2 occurred on 27th Feb 09.
129th flight of Tejas PV3 occurred on 27th Feb 09.
 
.
What went wrong with LCA, Arjun Tank, Akash missile

New Delhi: Poor planning, over-optimistic timelines and a lack of coordination with the Armed Forces led to cost and time overruns of major defence projects taken up by the Defence Research and Development Organisation (DRDO), says the first external review of the research body.

The P Rama Rao committee, which was formed to revamp the organisation, has said that the major cause for delays and failures of indigenous defence products is DRDO’s tendency to over-estimate its capabilities. The inability of the research body to involve the Armed Forces in developmental projects

from the start has been identified as a major area of concern.

In all of the major projects reviewed by the committee — the Light Combat Aircraft, the Arjun Tank, Kaveri engine and the Akash Surface to Air Missile — it cracked down on the DRDO for the same problems of “over-optimism” and poor planning.

The LCA project has come under a lot of flak from the committee, which says the delays resulted in a “substantive” setback to the Air Force and reduced its war-fighting potential. Even now, when 48 of the fighters are set to be inducted into the Air Force, five major problems areas remain unresolved, reducing the capability of the fighter, the review reveals.


Similarly, DRDO scientists’ “over-enthusiasm” about the capability of the organisation has been identified as the main reason behind delays in the Arjun Tank project. While the committee has said that the tank be inducted in the present form, it has directed DRDO to immediately work on a new more acceptable version of the tank.

The committee has now recommended to the Government that DRDO should undertake all projects in the future on a joint developmental basis and involve foreign partners to imbibe global standards. DRDO’s tendency of overstretching itself to reinvent the wheel has also been noted and the committee has said that foreign help should be taken “without any reservations” in future projects.

The committee has taken a look at some major projects and has recommended the road ahead on each one of them.

Light Combat Aircraft (LCA)

StatuS: The fighter may even miss the revised deadline of December 2010 by “one-two years” as DRDO has not been able to generate enough test flights. The present fighter fails to meet requirements set by the Air Force in 1985. Some major requirements that will not be met even after induction include mismatch of aircraft weight to power available from its engines, inadequate turn rates, low supersonic acceleration and achieving maximum angle of attack. The Kaveri engine being developed is nowhere near completion. LCA’s weight has increased 900 kg over the original 9 ton.


Way Ahead

•Accepting LCA in its “sub-optimal performance” as LCA Mk I, IAF to induct 48 of these underpowered fighters.

•However, new teams to be formed immediately to develop a Mk II version that will meet the original requirements identified in 1985.

•The laboratory behind the project — the Aeronautic Development Agency (ADA) — be merged with Hindustan Aeronautics Limited (HAL).

•Take up any future military aerospace programme as a joint venture with foreign aircraft design organisations.

•Kaveri engine project to be taken up as a co-design programme with foreign collaborator.


Arjun Main Battle Tank

StatuS: The original requirements were drawn up by the Army in 1972. The Army has placed orders for 124 tanks but these are still undergoing trials. The committee says while two changes in requirements by the Army in 1982 and 1985 contributed to the delay, the main reason was “over-optimism” of “inexperienced” developers who under-estimated the time needed for making weapon systems.


Pulling up the DRDO for the inordinate delay, the committee says:

•Too much time and effort spent in developing engine for tank without meeting success.

•DRDO looked at outsourcing turret control systems only in mid-’80s after failing to develop it in-house.

•DRDO did not hand over blueprints and specifications to the manufacturing facility on time.

•Tank suffered from poor product quality and sub-optimal performance during development, testing and production stage.


Way Ahead

•DRDO should immediately start work on a Mk II version of the tank to meet the Army’s requirements.

•Advanced version to be built on a joint development model and foreign collaborators should be roped in to gain expertise.

•DRDO needs to work on indigenisation of engine, turret and sight and fire control system that it has completely failed to develop.


Akash Medium Range Surface-to-Air Missile

StatuS: The work started in 1983, but the system failed to meet all deadlines set for development. While the Air Force will be inducting the system shortly, it is yet to meet the Army’s requirements. The missile system has failed mobility tests in the deserts, where it was too heavy and got stuck in the sand during trials. Cannot negotiate steep sand dunes. Developers over-estimated own capabilities, set unrealistic targets and did not involve the Armed Forces during the development, says the committee.

•Should immediately start work on a new Mk II version of the missile.

•DRDO has to make all out effort to involve the Army and Air Force in the development of the new system to meet all their requirements.

•DRDO to take up a joint development approach with foreign collaborator.


What went wrong with LCA, Arjun Tank, Akash missile
 
.
Way Ahead

•Accepting LCA in its “sub-optimal performance” as LCA Mk I, IAF to induct 48 of these underpowered fighters.

•However, new teams to be formed immediately to develop a Mk II version that will meet the original requirements identified in 1985.

•The laboratory behind the project — the Aeronautic Development Agency (ADA) — be merged with Hindustan Aeronautics Limited (HAL).

•Take up any future military aerospace programme as a joint venture with foreign aircraft design organisations.

•Kaveri engine project to be taken up as a co-design programme with foreign collaborator.
-In exactly which role sub optimal LCA would fit in Indian airforce?
-Which version french would be working on block1 or block2? Which block naval version belongs to?
-As far we know LCA is already a coproduction of HAL and ADA?
-If india can develop an indigenous fighter jet which is ranked #2 in world than would it be wise to do joint venture?
-Rumors suggest Kaveri is already in service, now you talk about its design?

Way Ahead

•DRDO should immediately start work on a Mk II version of the tank to meet the Army’s requirements.

•Advanced version to be built on a joint development model and foreign collaborators should be roped in to gain expertise.

•DRDO needs to work on indigenisation of engine, turret and sight and fire control system that it has completely failed to develop.

- How many MarkI will be built?
- Again, what would be the benefit for india in joint venture, as the rumors suggest arjun is ranked #1 in its present form?
- Rumors were that turret and fire control performed better than T-90 but you suggest it completely failed?
 
.
-In exactly which role sub optimal LCA would fit in Indian airforce?
A2A role

-Which version french would be working on block1 or block2? Which block naval version belongs to?
Kaveri is not related to LCA any more so Block 1 will be powered by IN20 engines and Block II will be with EJ/GE414 enigne. But expect a surprise here.

-As far we know LCA is already a coproduction of HAL and ADA?
HAL is production agency ADA is development agency.

-If india can develop an indigenous fighter jet which is ranked #2 in world than would it be wise to do joint venture?
Can you please elaborate the question, sorry not able to understand.

-Rumors suggest Kaveri is already in service, now you talk about its design?
No kaveri is not under service it's fighter plane version is goind for thest this month in moscow and f it passes the test then there are plans to further test it with LCA. marine version has passed the test for 12MW now undergoing testing for 15MW. If it passes that then it will be considered for destroyers (Kolkata class)

- How many MarkI will be built?
According to latest vayu edition (I have hard copy of that sorry no soft copy) by 2010-2011 total of 51.

- Again, what would be the benefit for india in joint venture, as the rumors suggest arjun is ranked #1 in its present form?
The JV is in nascent stage as of now for FMBT. No info available as of now.

- Rumors were that turret and fire control performed better than T-90 but you suggest it completely failed?
previous reports suggest the same no idea why this is written.
 
.
Light Combat Aircraft (LCA)

StatuS: The fighter may even miss the revised deadline of December 2010 by “one-two years” as DRDO has not been able to generate enough test flights. The present fighter fails to meet requirements set by the Air Force in 1985. Some major requirements that will not be met even after induction include mismatch of aircraft weight to power available from its engines, inadequate turn rates, low supersonic acceleration and achieving maximum angle of attack. The Kaveri engine being developed is nowhere near completion. LCA’s weight has increased 900 kg over the original 9 ton.


Way Ahead

•Accepting LCA in its “sub-optimal performance” as LCA Mk I, IAF to induct 48 of these underpowered fighters.

•However, new teams to be formed immediately to develop a Mk II version that will meet the original requirements identified in 1985.

•The laboratory behind the project — the Aeronautic Development Agency (ADA) — be merged with Hindustan Aeronautics Limited (HAL).

•Take up any future military aerospace programme as a joint venture with foreign aircraft design organisations.

•Kaveri engine project to be taken up as a co-design programme with foreign collaborator.

What a mess of the things. LCA original weight supposed to be empty as 5500 KG. It is now at 6500KG. There was no ASR placed in 1985. The project cam out of PDP phase after 1987. The ASR was changed in 2004 to have the total weapon payload of 4.5 tons. I really don't know what these guys are actually up to.
 
Last edited:
.
What a mess of the things. LCA original weight supposed to be empty as 5500 KG. There was no ASR placed in 1985. The project cam out of PDP phase after 1987. The ASR was changed in 2004 to have the total weapon payload of 4.5 tons. I really don't know what these guys are actually up to.

I think that was DDM at his best.
 
.
What a mess of the things. LCA original weight supposed to be empty as 5500 KG. It is now at 6500KG. There was no ASR placed in 1985. The project cam out of PDP phase after 1987. The ASR was changed in 2004 to have the total weapon payload of 4.5 tons. I really don't know what these guys are actually up to.

Why don't you people hire all these gurus and benefit from their expertise. The final product shall be interesting to see :lol:
 
.
HAL Tejas: DRDO Conducting Two Week Long Weaponization Tests
Dated 4/3/2009


India's premier defence agency DRDO is carrying out a two-week second phase weapon testing trials of the Light Combat Aircraft (LCA) at an Air Force base in the north-western sector.

"The focus of the current phase of testing is safe separation and accuracy of weapon delivery. The results from the tests would validate aerodynamic interference data as well as complex weapon release algorithms in different modes of release," DRDO officials said.

A composite test team comprising specialists from Aeronautical Development Agency, IAF, HAL and other aerospace agencies is based at the trial location to evaluate the performance of the indigenous combat aircraft. DRDO has directly linked the trial location with the base telemetry station at Bangalore via enabling designers and other specialists to monitor the activities in real time. ISRO's GPS Radiosonde is used for gathering accurate upper air data at the trial location.

DRDO is expected to hand over the first squadron of the LCA in December 2010 to the IAF in the initial operational clearance (IOC) configuration. A total of seven LCA squadrons will be inducted in the IAF. The first two squadrons of the IAF will be in the IOC configuration whereas the rest five will be the LCA Mark II, which will be an upgraded version of the aircraft.

HAL Tejas: DRDO Conducting Two Week Long Weaponization Tests | India Defence
 
.
Broadsword: Photos from an LCA bombing run

3207202d80e4fbbe292d4f4bdb26bba3.jpg
 
.
Why don't you people hire all these gurus and benefit from their expertise. The final product shall be interesting to see :lol:

are yaar chod na time and again some DDM writes it's fantasies and the whole things goes in to mess.
 
. .
India's Tejas could get Israeli radar
By Arie Egozi


The Indian air force could equip its Aeronautical Development Agency Tejas light combat aircraft with an off-the-shelf Israeli-made radar until a local version is manufactured.

Israel Aerospace Industries' subsidiary Elta Systems last year began talks with Indian companies that are involved in an effort to develop an indigenous radar for the Tejas, with the discussions linked to Elta's active electronically scanned array EL/M-2052.

India's defence ministry has appointed Hindustan Aeronautics to co-ordinate the effort, as the company has a wider co-operation agreement in place with IAI.

New Delhi's indigenous multimode radar programme has run into difficulties because of the technologies linked to it.

lta is completing the development of its EL/M-2052 system with a prototype being test flown using an IAI-owned Boeing 737 testbed. Elta claims that the long-range AESA fire control system is capable of detecting 64 targets, and of simultaneously engaging "several" using radar-guided missiles.

For ground surveillance, the design is capable of generating high-resolution synthetic aperture radar imagery and of detecting moving surface targets, and can also be used to support maritime surveillance tasks, says Elta.
 
.
when is the production for IAF starting at HAL ... any news

:cheers:
 
Last edited:
.
Deccan Herald - Indigenous LCA engine ready for maiden trial

Indigenous LCA engine ready for maiden trial

DH News Service, New Delhi:



After two decades of copious criticism from every quarter, the indigenous Kaveri engine is ready for its maiden flight trial in 2010.



“We have completed all ground testing for the full engine and individual components. The first flight (in a light combat aircraft) is expected in early 2010,” T Mohana Rao, director of the Gas Turbine Research Establishment (GTRE), Bangalore, which is developing the engine, told Deccan Herald.

Way back in 1986, the Defence Ministry wanted to develop an indigenous gas turbine engine for the indigenous fighter, Light Combat Aircraft (LCA), which just got off from the drawing board.

The decision led to the Kaveri programme, which was sanctioned in 1989 with an initial funding support of Rs 382.81 crore.


Clueless scientists

But over the years, Kaveri exemplified everything that is wrong with Indian defence research.

There was serious time and cost overrun and the programme was unable to meet many of its stated objectives. Many government and Parliamentary committees blamed the GTRE and the DRDO for India’s failure to have an indigenous engine for the fighter planes in time despite promises.

On the eve of the flight trial, Rao said when they were assigned the critical task they had no clue about the difficulties and were literally groping in the dark.

“We were thoroughly mistaken about the time. No one guided us. We were in dark along with our countrymen,” the GTRE chief admitted.

Rao confessed that there were flaws in the planning process when the project was conceived.

“We were over-optimistic that in six to eight years time, we will be able to make a gas turbine engine from scratch. But it was a myth,” he said.

Almost for the first seventeen years, GTRE scientists had to work in isolation as there was hardly any outside consultation with other engine manufacturers. “We just had some hunch. Consultation started since the last three years,” he said.

There was no test facility in India because of which the engine had to be sent abroad every time for test, further increasing the development time. The centre has so far sanctioned Rs 2080 crore for Kaveri. This, according to Rao, is one-fifth of what other nations have spent on developing similar gas turbine engines.

When the Kaveri programme was sanctioned in 1989, technical specifications were drawn out on the basis of a theoretical concept of the LCA. With the evolution of the LCA design, changes in the engine specifications were necessitated. Till date, GTRE made eight full engines and four core engines which do not have the low-pressure components and some other machinery.

Three cores and one full engine underwent testing in simulated conditions. In the next couple of months, full altitude testing in simulated conditions would be carried out to ensure that the engine can fire between 0-8 km altitudes.

This will be followed by the flight trial in another few months.
 
. .
Status
Not open for further replies.

Pakistan Defence Latest Posts

Back
Top Bottom