HAL Tejas | Updates, News & Discussions

[Tejas-MkII]

It certainly wasn't the PV5. It could have been PV1, PV3 or LSP2. Those were the only three that flew on Dec-7.

(08-Dec-09)Tejas-LCA

Also, notice that the frequency of test flights has increased dramatically in the past few days.

Yes,test Flights are increased very rapidly and most probably we see LSP-3 after this 2 week of testing..

And we are getting 4 LCA in 2011,8 in 2012 and 8 in 2013...
it is slow but LCA is here to Stay..

Also,as you can see it is 2 week test so PV-5 may fly,hopefully,because i have heard naval LCA and Trainer will have lot of similarity...

 

[Screaming Skull]

what ? are you seriously kidding me? This is the fastest speed it has achieved? Sukhoi mki itself has a top speed of 2.3 mach ( around 2800km/h.)

A real disgrace if this information is true. Nothing to feel proud of at all.

Ok here is another report which clearly mentions-

Light combat aircraft (LCA) Tejas notched a speed of over 1,350 km per hour — the fastest by an indigenously-made fighter aircraft — during its sea level flight trials off Goa

Mach 1.1 at sea level is a bloody good performance by any standards of imagination. It makes it all the more commendable when a fighter that is still more than a year away from achieving its IOC pulls off such a feat!

Don't you think?

Indian-made fighter plane Tejas clocks fastest speed

Added Later- Tejas-MkII beat me to posting that article with altitude info

 

[Tejas-MkII]

Added Later- Tejas-MkII beat me to posting that article with altitude info

Lets hope Real Tejas-MkII beat every body ....

 

[Hulk]

Lets hope Real Tejas-MkII beat every body ....

I am happy my gut feeling says this will be highly successful. Additionally wanted to add one thing, have you guys realized how things look different when government increases focus on its defense. The reason for these frequent test flight seems because of this focus on armed forces development. We will be a different force in next 3 to 5 years.

 

[Tejas-MkII]

we should not forget other things ,except speed ...

there are other things which are tested .... flutter clearenc,weapon firing,performance, stability and avionics validation..

And according to the article it is being done ...

so next will be LSP-3 with MMR as new gift to us by DRDO/ADA/HAL ...

with best wishes to have lot of Boom-2,weapon firing,with radar.

 

[gogbot]

self delete

 

[sudhir007]

India can manufacture only 8 Light Combat Aircraft a year

Despite a pending order from the Indian Air Force (IAF) for 20 light combat aircraft (LCA), India can manufacture only eight such aircraft annually, a senior Aeronautical Development Agency (ADA) official has said.N. Shyama Rao, project director at the ADA, said Tuesday that while only eight LCA could be manufactured annually, Hindustan Aeronautics Limited (HAL), a public sector undertaking unit involved in the manufacture of the LCA, would undertake a massive recruitment drive in order to expand the scope of production of the fighter planes.
‘Currently we can manufacture 8 aircraft per annum, which is extendable up to 12,’ Rao said at a press conference at the INS Hansa, a naval base in Goa 30 km from here.

He also said that HAL in the near future could recruit nearly 500 officers to meet the challenge.

While the IAF has already ordered 20 LCA to be delivered by 2013, they are expected to order 20 more of the fighter craft which was christened Tejas by former prime minister Atal Bihari Vajpayee.

The LCA will replace the IAF’s ageing Mig 21-fleet, while the naval version of the LCA will replace the maritime force’s fleet of Sea Harriers.

‘Even the Indian Navy will be ordering the LCA once the ski jump trials are validated,’ Air Vice Marshal Shankar Mani told reporters, adding that the naval version was still in the prototype phase.

The ski jump trials, which are compulsory for the naval version of the LCA, will enable the fighter craft to land and take off from the deck of aircraft carriers. ‘After spending some initial years on shore bases, the LCAs will also be posted onboard the Gorshkov, once it joins the Indian fleet,’ Mani said.

He said addition of the LCA to the IAF fleet would help close the gap between the subsonic Kiran aircraft and the supersonic Mig 21.

Armed with air to air, air to ground missiles and a bomb carrying a 1,000 pound payload, the LCA, which clocked in excess of 1,350 kmph during a trial off Goa Tuesday, is expected to cost Rs.150 crore per aircraft.

P.N. Subramanium, project director at the ADA, said the LCA represented fourth generation technology. ‘The LCA is contemporary in every sense, whether it is in terms of sensors, electronic systems, technology, weaponry, etc,’ he said.

The indigenously made fighter plane which has been flown by more than a dozen test pilots so far will be ready for induction into the IAF by 2010.

‘India can manufacture only 8 Light Combat Aircraft a year’ IDRW.ORG

 

[ssheppard]

Tejas aircraft trials end successfully

VASCO: The trials of Tejas, the light combat aircraft (LCA), which lasted for two weeks have successfully ended. The Aeronautical Development Agency (ADA) had introduced three aircraft in Goa for conducting various sea-level flight tests. P S Subramanyam, programme director of LCA, on Tuesday morning, while speaking at a press conference in INS Hansa, Dabolim, said, "LCA is on its way for induction into the IAF after achieving the initial operational clearance in December 2010."

The LCA is the first supersonic fighter being manufactured indigenously by Hindustan Aeronautics Limited. When 20 such LCA will be manufactured it will be given to the Air force and the other 20 to the Navy, it is a package of 40 LCA.

Tejas aircraft trials end successfully - Goa - City - The Times of India

 

[sudhir007]

LCA-Tejas has completed 1260 Test Flights successfully. (09-Dec-09).

* LCA has completed 1260 Test Flights successfully
(TD1-233,TD2-305,PV1-235,PV2-128,PV3-188,LSP1-54,LSP2-116,PV5-1).
* 235th flight of Tejas PV1 occurred on 08th Dec 09.
* 188th flight of Tejas PV3 occurred on 08th Dec 09.
* 116th flight of Tejas LSP2 occurred on 08th Dec 09.

(09-Dec-09)Tejas-LCA

 

[sudhir007]

A contract for procurement of 20 Tejas Light Combat Aircraft (LCA) in Initial Operation Clearance (IOC) configuration, along with associated role equipment, reserve engines, engine support package, engine test bed and computer based training (CBT) package from Hindustan Aeronautics Limited (HAL) was signed in March 2006. The total contract cost is Rs. 2701.70 crores. The specifications of the aircraft are as per the Air Service Requirements framed by the Indian Air Force. Delivery of the aircraft is expected to commence after IOC is achieved.

This information was given by Defence Minister Shri AK Antony in a written reply to Shri Pradeep Majhi in Lok Sabha today.
PIB Press Release

 

[sudhir007]

http://www.aero.iisc.ernet.in/kartik/INCAST_sudha5.pdf

 

[Spitfighter]

India can manufacture only 8 Light Combat Aircraft a year

Despite a pending order from the Indian Air Force (IAF) for 20 light combat aircraft (LCA), India can manufacture only eight such aircraft annually, a senior Aeronautical Development Agency (ADA) official has said.N. Shyama Rao, project director at the ADA, said Tuesday that while only eight LCA could be manufactured annually, Hindustan Aeronautics Limited (HAL), a public sector undertaking unit involved in the manufacture of the LCA, would undertake a massive recruitment drive in order to expand the scope of production of the fighter planes.
‘Currently we can manufacture 8 aircraft per annum, which is extendable up to 12,’ Rao said at a press conference at the INS Hansa, a naval base in Goa 30 km from here.

He also said that HAL in the near future could recruit nearly 500 officers to meet the challenge.

While the IAF has already ordered 20 LCA to be delivered by 2013, they are expected to order 20 more of the fighter craft which was christened Tejas by former prime minister Atal Bihari Vajpayee.

The LCA will replace the IAF’s ageing Mig 21-fleet, while the naval version of the LCA will replace the maritime force’s fleet of Sea Harriers.

‘Even the Indian Navy will be ordering the LCA once the ski jump trials are validated,’ Air Vice Marshal Shankar Mani told reporters, adding that the naval version was still in the prototype phase.

The ski jump trials, which are compulsory for the naval version of the LCA, will enable the fighter craft to land and take off from the deck of aircraft carriers. ‘After spending some initial years on shore bases, the LCAs will also be posted onboard the Gorshkov, once it joins the Indian fleet,’ Mani said.

He said addition of the LCA to the IAF fleet would help close the gap between the subsonic Kiran aircraft and the supersonic Mig 21.

Armed with air to air, air to ground missiles and a bomb carrying a 1,000 pound payload, the LCA, which clocked in excess of 1,350 kmph during a trial off Goa Tuesday, is expected to cost Rs.150 crore per aircraft.

P.N. Subramanium, project director at the ADA, said the LCA represented fourth generation technology. ‘The LCA is contemporary in every sense, whether it is in terms of sensors, electronic systems, technology, weaponry, etc,’ he said.

The indigenously made fighter plane which has been flown by more than a dozen test pilots so far will be ready for induction into the IAF by 2010.

‘India can manufacture only 8 Light Combat Aircraft a year’ IDRW.ORG

Not bad, India is still in the process of developing its industrial capacity. We can expect this number to go up significantly in the coming years. If we can maintain this momentum, India's war fighting capacity will increase exponentially in the coming years.

We have a multitude of projects in the pipeline and if all goes as planned by 2020 India will be a true military power.

 

[Screaming Skull]

http://www.aero.iisc.ernet.in/kartik/INCAST_sudha5.pdf

Great find sudhir007!

An interesting graph from the presentation-

Observe the lower most curve in the graph. That is the Calibrated Airspeed (CAS) curve. It suggests that the LCA has been designed for a max CAS of 1354 kmph which the dunderhead reporters mistook for the max speed of the LCA. CAS has nothing to do with the max speed of an air craft and it is impossible to estimate the max speed of an aircraft from its max design CAS.

So what is CAS?

Calibrated airspeed (CAS) is the speed shown by a conventional airspeed indicator after correction for instrument error and position error. Most EFIS displays also show CAS. At high speeds and altitudes, calibrated airspeed is further corrected for compressibility errors and becomes equivalent airspeed (EAS).
When flying at sea level under International Standard Atmosphere conditions (15°C, 1013 hPa, 0% humidity) calibrated airspeed is the same as equivalent airspeed and true airspeed (TAS). If there is no wind it is also the same as ground speed (GS). Under any other conditions, CAS may differ from the aircraft's TAS and GS.
Calibrated airspeed in knots is usually abbreviated as KCAS, while indicated airspeed is abbreviated as KIAS.

Practical applications of CAS

CAS has two primary applications in aviation:

• for navigation, CAS is traditionally calculated as one of the steps between indicated airspeed and true airspeed;

• for aircraft control, CAS (and EAS) are the primary reference points, since they describe the dynamic pressure acting on aircraft surfaces regardless of density altitude, wind, and other conditions. EAS is used as a reference by aircraft designers, but EAS cannot be displayed correctly at varying altitudes by a simple (single capsule) airspeed indicator. CAS is therefore a standard for calibrating the airspeed indicator such that CAS equals EAS at sea level pressure and approximates EAS at higher altitudes.

Calibrated airspeed - Wikipedia, the free encyclopedia

In short what it basically means is - a conventional airspeed indicator in the LCA will show a true airspeed under International Standard Atmosphere conditions (15°C, 1013 hPa, 0% humidity) upto a speed of 1354 kmph. Beyond this speed the CAS and TAS for the LCA will start diverging at ISA conditions.

The graph also proves that the LCA has already been tested at Mach 1.4 at an altitude of 1000 m. Further, it can be noted that the LCA is capable of achieving Mach 1.6 at altitudes of about 7000 m at CAS. For some reason the curves in the graph have been truncated after Mach 1.6. But if one extrapolates the CAS curve, it can be observed that the LCA will touch speeds of upto Mach 2 at altitudes approaching 10000 m. The MKI can achieve a top speed of about Mach 2.3 at an altitude of 11000 m.

However, what is interesting to note is that the MKI has a max ground level speed of only 1350 kmph. The LCA on the other hand has achieved that speed at sea level that too in Goa. The location is significant because the weather conditions in Goa vary drastically from ISA conditions of 15°C, 1013 hPa and 0% humidity. The density of air in Goa at sea level will be higher than the density of air at ISA conditions at ground level. Therefore, it can be concluded that the LCA will have a top speed more than that of MKI at ground level in ISA conditions. That is precisely the reason why the Navy is interested in the Navalized version of the LCA!

All this with a ‘supposedly’ under powered GE-F404 engine! I have no doubt in my mind that the Mk-2 with a much more powerful engine will easily have the among the highest T/W ratio and the largest flight envelope amongst all 4+ gen fighters in the world.

 

[ssheppard]

I would really appreciate some one explaining Flutter clearance

Thanks in advance.

 

[Tejas-MkII]

This one is from BRF:
Bharat Rakshak • View topic - LCA news and discussion

here are speeds of fighters at sea-levels

JAS-39 A/B Gripen
Maximum Speed at Sea Level - 1,225 km/h

EuroFighter Typhoon
# At sea level: Mach 1.2[173] (1470 km/h / 913.2 mph) [174]

Su30MKI
(a 1350 km/h ground-level speed)

F-22
at sea level: 920 mph (1,480 km/h), Mach 1.2

Rafale
at sea level: 864 mph (1,390 km/h), Mach 1.135

Mig29K
at sea level: 670 knots (771 mph; 1240 km/h) - sea level.

F-18SH
at sea level: 835 mph (1,350 km/h), Mach 1.1

J-10
915 mph (1,470 km.h), Mach 1.2

Mig-21
at sea level: 800 mph (1,275 km/h), Mach 1.05


And our LCA has Mach 1.1 at sea level..

Taht is also with GE-404 , it will beat many in the the list with 414 or EJ-200