HAL Tejas

Hi DD3,

Thanks for your appreciation but unfortunately your appreciation does not answer my question. If u appreciate my metaphor then u definitely know something which i don't.

LCA-Tejas has completed 754 Test Flights successfully. (03-Oct-07).

LCA has completed 754 Test Flights successfully
(TD1-223, TD2-258,PV1-142,PV2-52,PV3-68,LSP1-11).

142nd flight of Tejas PV1 occurred on 03rd Oct 07.

Source

After how many test flights will the IOC be granted to Tejas and after how many test flights will the FOC be granted.

The number of test flights completed has no meaning to me unless I know after how many test flights it will get IOC/FOC

I have few questions about HAL Tejas

1. Will the Naval version have VTOL??

2. When will the Kaveri development complete? I hope that is soon with SNECMA kicking in.

3. How is Slift different from Combat Air Trainer? Is it only that Slift is supersonic or there are other differences?? If that is the case then what is the difference between CAT and HAL AJT??

4. What is the difference between Slift and 2 seat variant of tejas??

5. When is Tejas scheduled to take weapon trials??

6. Is there any export potential of Tejas or Naval Tejas?? And if yes does HAL have enough resources to cater to Indian defence requirements and also exports??

Here is a cool pic of Tejas in IAF colors......




(mod edit to replace Very Large Picture)


[edit on 8-10-2007 by Byrd]

one thing I am sure is Tejas isn't a suitable aircraft to redesigned as a VTOL or training version.

nothing more I knew.

Originally posted by emile
one thing I am sure is Tejas isn't a suitable aircraft to redesigned as a VTOL or training version.

No, there will not be a VTOL Tejas, even if one was wanted there is no suitable engine for such a model.

However a two seat Tejas would make a very good trainer in a similar way to the T-38.

After all, that is how Hawker Siddeley ended up making money out of the Gnat.

1. Will the Naval version have VTOL??

No it will not. Its naval version will operate from carriers that will have the STOBAR system, so there is no real need for VTOL.

There is a speculation of a TVC engine on the LCA but I don't know much about that.

2. When will the Kaveri development complete? I hope that is soon with SNECMA kicking in.

Cannot be soon enough. Hopefully circa 2012.

3. How is Slift different from Combat Air Trainer? Is it only that Slift is supersonic or there are other differences?? If that is the case then what is the difference between CAT and HAL AJT??

4. What is the difference between Slift and 2 seat variant of tejas??

What is this Slift?

5. When is Tejas scheduled to take weapon trials??

Right about now if I'm not mistaken. No links on that though.

6. Is there any export potential of Tejas or Naval Tejas?? And if yes does HAL have enough resources to cater to Indian defence requirements and also exports??

IMO the export market for the Tejas is a little on the 'dry' side as of now. Not sure about the latest situation though.

Vedas, if you would do a bit of searching on the weapons the LCA can carry, you would automatically discover info that would point to its design(delta wing) characteristics. So look a little and I'm sure you'll come across the right stuff.

[edit on 8-10-2007 by Daedalus3]

Originally posted by waynos

However a two seat Tejas would make a very good trainer in a similar way to the T-38.

After all, that is how Hawker Siddeley ended up making money out of the Gnat.

Never really though about a trainer version for the Tejas. I easily overlooked that with all the problems its been navigating through!


However there haven't been many dedicated trainers with the Delta wing config right?

What is this Slift?

I took it to mean 'Supersonic Lead In Fighter Trainer', the BAe Hawk 128 is called a LIFT, as in not supersonic.

However there haven't been many dedicated trainers with the Delta wing config right?

None that I can think of apart from an Aussie design that never flew. India would be first.

Thanks for the replies DD3.

You got the SLIFT right.

But I wish to know what is the difference between SLIFT and CAT (Combat Trainer)

Info on Tejas High AoA:
csirwebistad.org...

Info on Tejas from a magazine article:
www.bharat-rakshak.com...

Lots of interesting bits pertaining to wing design and flight envelope in the 2nd link.
Even info pertaining to the emile question of the intakes being hidden under the shoulder-attached wings.
The 3rd page(magazine page 85) has specific info relating to the wing shielding of the air intakes.
It apparently reduces intake losses and flow distortions at high AoAs by evening the air flow.



[edit on 10-10-2007 by Daedalus3]

the doc you given call the maneuver done by Tejas is spin? that's very interesting. Even this spin was not done in AoA, that would be assemble to Helicopter which MiG-29OVT did. But not for sure.

Originally posted by emile
the doc you given call the maneuver done by Tejas is spin? that's very interesting. Even this spin was not done in AoA, that would be assemble to Helicopter which MiG-29OVT did. But not for sure.

Which one? The first one about High AoA testing?

Spin testing or OOCF(Out-of-Control-Flight) testing is a normal procedure which every design goes through. Obviously breaching the max permissible AoA eventually results in OOCF and spins.
Determining the no-breach AoA limit and postulating spin recovery techniques are normal studies any aircraft requires.. and I'm sure you know this emile?

So what helicopter and MiG-29OVT are you talking about?!


I thought you were worried about the position of the intakes under the shoulder-attached wings and how that would cause problems in ACM!

[edit on 11-10-2007 by Daedalus3]

Originally posted by Daedalus3
So what helicopter and MiG-29OVT are you talking about?!

I'll give a shot at that one. To my knowledge the Helicopter maneuver is one of the couple that the MiG29 OVT/MiG-35 has recently showed off (and it is possible that it invented it. The OVT has invented, I believe, 3 maneuvers so far). As far as I know it utilizes the TVC to yaw the aircraft into a fast but controlled flatspin. I don't think it's anything new, but the fact that it is very controllable may have given it reason to be an actual maneuver than a mistake.

The Tejas finally begins weaponisation..
1st milestone- dumbfiring a R-73:
www.hindu.com...

The MMR radar is meant to have Israeli component and note that FoC is a distant 2013.

Videos :

LCA Tejas fires R-73 missile >> www.youtube.com...


LCA Tejas PV-1 Test Flies with Drop Tanks >> www.youtube.com...

as long as visited to india over a month, you will get a conclusion that such a poor country should concern more on people's living standard, but not on historical revenge to china and pakistan!