ADA Tejas (LCA) News and Discussions

[Decklander]

I do not get it, Sir. You had said in the same post:



So, Tailless Delta designs are optimum for high subsonic cruise regimes or not optimum ?

Yes, the tailless Delta design and Delta design are best for high speed cruise. They are most optimum for high speed.

 

[Kunal Biswas]

Back in DFI, Ah .. No pics of Tejas

 

[Kunal Biswas]

Regarding EW suit, Tejas always had internal EW ..

I assume this EW suit is upgraded ..

LSP-7

 

[Defcon 1]

Why are my posts on this thread are deleted?

 

[ersakthivel]

t

Why are my posts on this thread are deleted?

Your posts along with some of mine are here in,

http://defenceforumindia.com/forum/military-aviation/47398-combat-aircraft-technology-evolution.html


as they pertain to comparison of fighters,

 

[ersakthivel]

And few interesting points in debate between Mihir Shaa and Abhiman in the link below, busts many a misconceived myths as tejas being light fighter.

Livefist: Why isn't the HAL Tejas part of the MRCA push?

It has almost same empty weight , same weapon load and same range figures as Grippen(mk-1 equivalent to Grippen C/D and tejas mk-2 equivalent to Grippen NG).

Both use the same engines Ge-404 and Ge-414 for two versions and tejas mk-1 is almost in the same weight class as that of grippen C/D . So it will have the same range as that of grippen, more so considering the INS 20 GE-404 version was a better model giving more thrust than the engine on grippen C/D

SO the argument that the Tejas's empty weight of 6.2 ton does not match with GE-404's optimum SFC and that is the reason for lesser range of Tejas is not correct I suppose, Because Grippen C/D with an empty weight of 6.5 tons was designed to match the best SFC of Ge-404 right from the design start phase.So 6.2 ton empty weight of tejas will also match the optimum SFC of GE-404. The reason for lesser range quoted for tejas may be due to the fact that in hot and arid indian climate condition the range of all fighters will decrease dramatically for ALL Fighters,

So when Grippen NG can be called as MMRCA why is Tejas repeatedly being called a light rthat can only replace Mig-21.

true the LCA project was discussed in the 1970s with the aim of it being Light fighter in the class of Ajeeth, or Mig-21,

But subsequent spec revisions make it equivalent to two MMRCA contenders F-16 and Grippen,

below are the specs of tejas listed by HAL products website, members can give opinion whether it is correct or wrong,

Tejas is a single engined, light weight, highly agile, multi-role supersonic fighter. ... The aircraft with delta wing is designed for 'air combat' and 'offensive air support' ... Agency is the designated project manager for the development of LCA. ... of 750 km/h, max. range of 1500 km, max. endurance of 2 hrs. with internal fuel.

 

[Kunal Biswas]

Interesting Photo of Twin seater Tejas MK-1 >>

Not just fuel tanks, But GSH-23 mm also displayed ..

 

[Kunal Biswas]

Some More Pics >>

 

[rugved]

Some More Pics >>

Screw those watermarks! I wanted to save them as wallpapers on my computer.

 

[sasi]

Tejas has been flown successfully in extreme conditions in the rarefied heights of Leh at −28° C. Yesterday at 4:20am
Leaving Facebook... | Facebook

 

[ersakthivel]

Tejas has been flown successfully in extreme conditions in the rarefied heights of Leh at −28° C. Yesterday at 4:20am
Leaving Facebook... | Facebook

four of six the famed MMRCA contenders could not do that in LEH.

In high altitude low wing loading deltas are more suited to take off with higher weapon load.

it confirms that tejas mk-1 is entering IAf fleet at much higher level of readiness than any other IAF plane.

because most of the IAF planes could not operate in LEH without being modified for LEH environ, means they were not ready to do duty in LEH when they were bought.

 

[CuriousBen]

four of six the famed MMRCA contenders could not do that in LEH.

In high altitude low wing loading deltas are more suited to take off with higher weapon load.

it confirms that tejas mk-1 is entering IAf fleet at much higher level of readiness than any other IAF plane.

because most of the IAF planes could not operate in LEH without being modified for LEH environ, means they were not ready to do duty in LEH when they were bought.

In Jan or Feb 2013, the LCA tejas did fly from the rarefied airfields of LEH / LADAKH, so its nothing new.
What is the significane of this flight compared to the earlier flight ?

 

[ersakthivel]

In Jan or Feb 2013, the LCA tejas did fly from the rarefied airfields of LEH / LADAKH, so its nothing new.
What is the significane of this flight compared to the earlier flight ?

It did finish its LEH trials successfully once before.

After that a fuel leakage was found out and fuel lines were reldesigned .

And it failed to clear the LEh trials with new fuel lines .Due to that modifications were carried out again.

The Tejas that has now flown from LEH is the final design freeze version with all modifications specified by IAF finally done.

That is the significance of this news.

 

[rugved]

Does that explain the time it is taking to get commissioned into the IAF?

 

[ersakthivel]

Does that explain the time it is taking to get commissioned into the IAF?

It comes in as a non crashing complete finished product opposed to other not designed to indian condition IAF planes.

That is the point.

 

[Sridhar]

Flight Test News


LCA-Tejas has completed 2375 Test Flights Successfully. (29-Oct-2013).


(TD1-233,TD2-305,PV1-242,PV2-222,PV3-376,LSP1-74,LSP2-286,PV5-36,LSP3-168,LSP4-94,LSP5-225,LSP7-66,NP1-4,LSP8-44)

from

LCA-Tejas has completed 2348 Test Flights Successfully. (08-Oct-2013).


(TD1-233,TD2-305,PV1-242,PV2-222,PV3-375,LSP1-74,LSP2-286,PV5-36,LSP3-161,LSP4-94,LSP5-220,LSP7-65,NP1-4,LSP8-31)

 

[sasi]

four of six the famed MMRCA contenders could not do that in LEH.

In high altitude low wing loading deltas are more suited to take off with higher weapon load.

it confirms that tejas mk-1 is entering IAf fleet at much higher level of readiness than any other IAF plane.

because most of the IAF planes could not operate in LEH without being modified for LEH environ, means they were not ready to do duty in LEH when they were bought.

lca too modified. Some fine tune-ing ignition starter!

 

[rugved]

It comes in as a non crashing complete finished product opposed to other not designed to indian condition IAF planes.

That is the point.

If that is the case, then the trials will never end and the Tejas should never get inducted into the IAF.

 

[p2prada]

lca too modified. Some fine tune-ing ignition starter!

Yeah, even LCA failed high altitude tests in Leh the first time. The engines had to be modified and there was a retrial.

 

[ersakthivel]

If that is the case, then the trials will never end and the Tejas should never get inducted into the IAF.

can you name a few IAF fighter types that can operate in Leh right from the moment they were inducted?

Answer-none ,

Only tejas will be capable of operating right from the moment it is introduced in IAF.

DO you know 40 old Su-30 type (way inferior to Su-30 MKI standards) were shoved down IAF throat and spent ten years in IAF without even proper weaponization specified by IAF?

After wasting Indian tax payers money for decades in operating costs they were returned to russians by IAF and were sold as second hand Su-30 to algeria.

The SU-30 MKI never existed before IAF specified the specs. IAF paid advance money for the project , paid and put up with 40 below par Su-30 and bore the operating cost of maintaining them for decades with little practical use till the fully developed SU-30 MKI was ready.

Still the IAF su-30 MKIs have many niggling engine shaft issues , fly by wire bugs that caused crashes of two Su-30 MKIs that are being rectified by now and very poor availability rate.

In the recently held Iorn Fist exercise the two Su-30 MKIs which were to come and perform their missions of simple ground bombing in ideal test conditions failed to show up because of troubles.

But the yet to be inducted Tejas came fired off BVR missiles , did the ground bombing all without even getting IOC-2,

Even in the red Flad exercise in Nellis base many foreign pilots were surprised at how minutely IAf pilots inspected the runway before every sortie of Su-30 MKI and wondered why they did it every time? it was on many forums.

When such fighters can be inducted by IAF by giving advance payments to russians what is wrong in inducting Tejas which can land and take off in LEH at 4.20 AM right from day one of induction with full weaponization?

Compare that to the readiness level at which tejas comes into IAF.

Does that make Su-30 MKI a fighter unfit to be inducted in IAf? A big No is the answer . All fighters have niggling issues and are inducted and perfected into operation by a loyal corruption free home air forces to achieve a level of operational capability.

Without any IOCs a squadron of F-35s are already operating with restricted Fly by wire software severely limiting their operation , No one complains. Recently pilots refused to fly f-22 raptor due to some problems with OBORG on
board,there wer cracks found on fuselage of many F-18 Hornets supplied to US navy and are being rectified.

The RAF TYPHOONS hundreds of them are all operating at 80 percent of their capacity due to unresolved vibration issues till now.

Russians are saying they will induct PAKFA next year , when its specified engine is yet to be tested !!!! and it is still flying with various hatch potch fixtures to perform even pared down dead slow maneuvers in recent air show.

Grippen NG is already competing in many competitions nothing other than a single developemental prototype. Where is the IOC and FOC for it? if at all it would have won the MMRCA competition UAF would have gleefully paid up the money for its development cost!!!!

But it won't do for tejas mk-1 and MK-2!!!!!!

Why?

Tejas mk-2 will shut the door on RAFALE in IAF , Thats the real reason IAF is sending request upon request in the form Request for Action from 2006 to delay the induction of Tejas mk-1.

Can you imagine a sweedish airforce delaying it's own NG fighter development with niggling request at the same time plumping for french RAFALEs? It will never happen.

The entire Sweedish media will cry hoarse that since grippen NG and RAFALE or so close to each other we should develop local industry and should not go for RAFALEs.

Here already knives are out on Tejas mk-2 with pages long criticism from IAf saying it can't have 30 minutes engine change like grippen NG so it is inferior, What I am asking is how many fighters in IAf have 30 minute engine change specs?

Is IAF going to ground all fighters in its 700 strong fleets that don't have 30 minutes engine change specs?

In that case we should practically shut down the entire IAF.

Tejas mk-2 has the same RAFALE sized radar and same long range BVR missiles and will have a good range as well along with 5 ton weapon load capacity with way lower unit costs and maintenance costs.

If it was sweedish airforce right now they will be pumping their billions into faster Grippen NG development in place of pouring them in to RAFALE. But it is exactly opposite here.

When IAf is getting all new 5th gen stealth FGFAs starting from 2020(if they don't insist on so many modfication they can start getting them from a 2016 itself!!! ) why is in wants to import 4.5th gen RAFALE which offers very little over locally developed Tejas mk-2 ?