HAL Tejas | Updates, News & Discussions-[Thread 2]

[Abingdonboy]

Tejas starts after overnight soak in extreme cold

New Delhi, Jan 28 (IANS): In another landmark for indigenous Light Combat Aircraft (LCA) Tejas, the aircraft was successfully started thrice after an overnight soak in the extreme cold of Ladakh, where the temperature dropped to minus 15 degrees Celsius.

"With three consecutive start-ups of its engine after overnight soak in extreme cold conditions of the Ladakh winter, that too without any external assistance, Tejas, the Indian LCA has achieved yet another and a rare distinction," a defence ministry statement said here Wednesday.

"Starting the fighter aircraft under such extreme condition without any external assistance or heating is a technology challenge. The requirements become further stringent when the starting is to be done three times consecutively with a partially charged battery," the statement said.

Defence Minister Manohar Parrikar earlier this month handed over the first Tejas to Indian Air Force (IAF) chief Air Chief Marshal Arup Raha.
As a single-engine multi-role supersonic fighter, Tejas, which is 60 percent indigenous, is set to replace the IAF's ageing Russia-made MiG-21 fleet when inducted in six squadrons after defence regulator Centre for Military Airworthiness and Certification (Cemilac) certifies it for Final Operational Clearance (FOC) later this year.

It has been developed by Hindustan Aeronautics Limited (HAL) and the Defence Research and Development Organisation (DRDO).

The engine starter has been developed indigenously by HAL Aero Engine Research and Design Centre (AERDC) in Bengaluru.

Prior to aircraft tests, the Jet Fuel Starter (JFS) was extensively tested to meet starting conditions across the operating altitudes including Leh (10,700 feet) and Khardungla (18,300 feet).


Tejas starts after overnight soak in extreme cold

 

[Supply&Demand]

Can you please tell me, if u know, what r these white patches on the wings? they r ugly!

 

[A2Z]

Blaming would help no one, its high time and HAL should decide whether they would be able to make LCA or not if not then there is no point in wasting money on this project.

 

[chalHat]

Blaming would help no one, its high time and HAL should decide whether they would be able to make LCA or not if not then there is no point in wasting money on this project.

This can take some more time ,, but not even a .1% that this project is going to fail. Sooner or Later ,,, this is going to happen.We wil have Tejas no matter how

 

[Iggy]

Tejas starts after overnight soak in extreme cold

New Delhi, Jan 28 (IANS): In another landmark for indigenous Light Combat Aircraft (LCA) Tejas, the aircraft was successfully started thrice after an overnight soak in the extreme cold of Ladakh, where the temperature dropped to minus 15 degrees Celsius.

"With three consecutive start-ups of its engine after overnight soak in extreme cold conditions of the Ladakh winter, that too without any external assistance, Tejas, the Indian LCA has achieved yet another and a rare distinction," a defence ministry statement said here Wednesday.

"Starting the fighter aircraft under such extreme condition without any external assistance or heating is a technology challenge. The requirements become further stringent when the starting is to be done three times consecutively with a partially charged battery," the statement said.

Defence Minister Manohar Parrikar earlier this month handed over the first Tejas to Indian Air Force (IAF) chief Air Chief Marshal Arup Raha.
As a single-engine multi-role supersonic fighter, Tejas, which is 60 percent indigenous, is set to replace the IAF's ageing Russia-made MiG-21 fleet when inducted in six squadrons after defence regulator Centre for Military Airworthiness and Certification (Cemilac) certifies it for Final Operational Clearance (FOC) later this year.

It has been developed by Hindustan Aeronautics Limited (HAL) and the Defence Research and Development Organisation (DRDO).

The engine starter has been developed indigenously by HAL Aero Engine Research and Design Centre (AERDC) in Bengaluru.

Prior to aircraft tests, the Jet Fuel Starter (JFS) was extensively tested to meet starting conditions across the operating altitudes including Leh (10,700 feet) and Khardungla (18,300 feet).


Tejas starts after overnight soak in extreme cold

I dobt understand, isnt it the same engine used in F 18s ? Then how come it failed in Leh test and the engine in Thejas worked?Is bcoz of the weight difference?

 

[Krate M]

Can you please tell me, if u know, what r these white patches on the wings? they r ugly!

Peeled off paint. Tapes are used to stick tufts of threads to do inflight airflow analysis. Peel them off and paint peels with them.
Smoke and Tuft Flow Visualization

This can take some more time ,, but not even a .1% that this project is going to fail. Sooner or Later ,,, this is going to happen.We wil have Tejas no matter how

Correction: We have Tejas. Already inducted.

 

[r101]

what will be kaveri gtre future??

 

[sancho]

I dobt understand, isnt it the same engine used in F 18s ? Then how come it failed in Leh test and the engine in Thejas worked?Is bcoz of the weight difference?

=>

February 5, 2013...

...Talking to reporters, the IAF chief said the indigenous aircraft will have to be modified further for operating in high-altitude areas as recently during trials in Leh, its engine "did not work"...
...Browne said delays do take place in a development project such as the LCA. "Recently we went for high-altitude trials. The engine (of LCA) did not work at that altitude because it is a different cup of tea. Even the Su-30, when it was taken to Leh, it had to be modified. So, the LCA will have to be modified. It has to do the retrials," he said...

'LCA Tejas likely to be ready for operational service by 2015' | Business Standard News

Just as the fighters in the MMRCA trials needed modifications of the engine to finally do the trials, the same is needed for the LCA, not that much of a deal.

 

[Badbadman]

Just like scooters, They would have put a chok in the engine.
Too cold, pull the chok and wallah.

 

[A2Z]

but not even a .1% that this project is going to fail. Sooner or Later ,,, this is going to happen.We wil have Tejas no matter how

Now this is the sort of confidence IAF should show in Tejas put aside the Rafales and sukhois and show interest in LCA.
This sort of attitude will be a confidence booster for HAL and soon you'll see Tejas in skies and I mean in large numbers.

 

[MehrotraPrince]

 

[Etilla]

Now this is the sort of confidence IAF should show in Tejas put aside the Rafales and sukhois and show interest in LCA.
This sort of attitude will be a confidence booster for HAL and soon you'll see Tejas in skies and I mean in large numbers.

Will be a confidence booster for PAF and PLAAF not IAF

 

[Stephen Cohen]

Will be a confidence booster for PAF and PLAAF not IAF

LCA mk 1 after FOC will be capable aircraft

Definitely better than Mig 21 and Mig 27

Do you mean to say that RIGHT NOW PAF and PLAAF
are very confident against IAF because we have planes like Mig 21 and Mig 27

 

[Etilla]

LCA mk 1 after FOC will be capable aircraft

Definitely better than Mig 21 and Mig 27

Do you mean to say that RIGHT NOW PAF and PLAAF
are very confident against IAF because we have planes like Mig 21 and Mig 27

Tejas mk1 after FOC will lack the interception capability of Mig-21 and bombing capability (range-payload) of Mig-27

So it will be a confidence booster for PAF and PLAAF

 

[Krate M]

Hey @Etilla show me a reference to range with payload of mig27.

Due to lack of radar and need to use pods for laser target designator and external radar, the payload capacity of mig27 drops to less than LCA. Plus mig27 engine is a known problem case worldwide.
And mig27 cannot fire r73, it can only fire r60, which has lesser range.

And after FOC it will have the interception capabilities of mig21, that is bvr missile and gun firing. Because it is a part of the FOC capabilities.