ADA Tejas (LCA) News and Discussions

[Kunal Biswas]

Don't repeat the same questions which are answered before, Read the thread you will have your answer..

All the links are provided with details..

 

[tony4562]

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[tony4562]

Don't repeat the same questions which are answered before, Read the thread you will have your answer..

All the links are provided with details..

All those details are non-sense because they are only specs thus don't reflect the ground reality. the problem is the you as an outsider don't have a clue about the ground reality.

 

[Kunal Biswas]

I think i have very much idea about the ' ground situation ' i ( Outsider ? ) and others here prefer to stick with facts not assumptions based simply personal opinions particularly if one have no actual experience of that which one speak about.

 

[Kunal Biswas]

 

[Kunal Biswas]

Re: ADA Tejas (LCA) - III

 

[Kunal Biswas]

 

[Tolaha]

^^ @tony4562

 

[tony4562]

Are those devices made in India? If yes, are the components that sit inside those things, made in India? Do you have any evidence that an assembly line has been set up and is ready for serial production of LCA?

 

[Kunal Biswas]

 

[Kunal Biswas]

 

[Kunal Biswas]

 

[Kunal Biswas]

 

[Kunal Biswas]

 

[Kunal Biswas]

 

[ersakthivel]

Are those devices made in India? If yes, are the components that sit inside those things, made in India? Do you have any evidence that an assembly line has been set up and is ready for serial production of LCA?

HAL will set up the assembly line.radars are finished by LRDE, The GE engine will be assembled here under TOT.In the first engine change it will be replaced by k-10 GTRE-snecma JV.

Entire airframe is made of composite tech entirely in india, by the time Tejas reaches derial production more than 70 percent of the LRUs will be produced here.The ones imported will be purely on the basis of cost ,if they are available at lower price in international market,not for want of tech.

You would have known production facilities will be set up only after large orders are received , in any major progam.
ADA will have a steady stream of projects running.No one will set up production facilities at the start of the design phase and sit idle for 20 years.

AND AMCA will be finished quickly with world classs standards. AND PAKFA will be the last major indian fighter purchase.India too will become an exporter of cost effective fighters .

 

[ersakthivel]

Most of the opinion on the written page of pro PROF.PRODYUT DAS seems to be not that of a qualified expert kunal , for example

1.The lower fuselage length will lead to more drag is a bullshit , because grippen too has almost the same fuselage length and there are no problem.

2.PRODYUT DAS contention that we need to rebore tejas for a new engine is .........well......dumb is the least stern expression I use, because the K-10 that will be built have the same form fit as ge-404 in mk-1 and mk-2 will be developed with longer dimension keeping in mind the ge-414 engine from the outset.

Even if we change it with improved version of k-10 in future there will in fact be space saving only and there is NO NEED OF REBORING.
Prodyut das seems to think of engine change like the reboring of old ashoklayland lorry engines to fit new pistons in place of old pistons with engine liners.

WAS HE A LORRY MECHANIC?.Well it is an astounding comment to make!!!! reboring tejas?????????????

3.Back of the envelpope lift drag calculations ? The autor is writing like a bike mechanic.

The lift draqg is 20 percent poorer than mig-21????????????Lift drag curve is indicator of fighter charecteristics.The tejas has 90 kn engine mk-1 and 100 kn in mk-2 and has the best lift in IAF with lowest wingloading ..What does the author meant by 20 percent poorer lift drag?????????????????

4.Engine sit idle means????????Wing has to crank itself to make lift??????Then what does the author expect ?Does he expect tail to generate lift?????In all airplanes only wings generate lift.How come he came to the conclusion that it will have lower acceleration and climb?

Please check the date of the article AND VERACITY OF THE CLAIMS,KUNAL.

The AUTHOR PRODYUT DAS seems to be the most original budhead , KUNAL please check the date and refer it to any experts for clarification.
Tejas has TWR greater than 1 . And it had gone past 1.2 at goa from where he plucked the claim 1.14?????It achieved it in dive from 4 km according to ADA.The reason is it had only 70 plus kn engine power on the GE 404 it carries.HE CLUMSILY ASKS FOR THE DISTANCE TRAVELLED BEFORE IT REACHED THE SPEED.
But production models have 90 kn GE-404 -IN engine.

If an aviation article writing guy doens't even know these basic truth means either PRODYUT DAS seems to be on crack or he has motivated interests to push like REBUILDING OF RUSSIAN JUNKS LIKE MIG-21BISONs.

The authors claim that FOC will come in 2018 and the program is 35 years old finally gives the game away.A lot of guys like these are commisioned by foreign forces who have a vested interests in stalling indian programs and keep upgrading russian junks forever to keep the gravy train running..

Drive it into the wooden head of PRODYUT DAS that 40 sukhois we initially bought holidayed here for decade without weaponisation in the guise of fine tuning tactics???????????And F-16 was inducted within 3 years of it's first flight.
Once the 90 kn engine arrives for Serial production aircrafts the FOC will be a formality.

And his contention that higher powered engine requires more power is even bizare . All high powered modern engines are produced with both aims higer power and better fuel economy for the power spit out.

His article has the same motivation behind it like the 2009 flight global article on tejas by a piece of shit called AUSTIN.All his arguments run exactly on the same line as the flight global article, which I have ripped apart in this thread point by point.

Basic aim is to frighten the gullible public by reeling of some technical stuff and push for foriegn arms import in the name of "NATION'S SECURITY IS THREATENED BY INTRODUCING TEJAS.STRANGE.

And to fool the public that IAF is being made a scapegoat by accepting compromised tejas , and ADA and DRDO and GTRE are fools.

 

[p2prada]

with only one back-burner engine ( or is there some backup mechanism ) isnt there a safety hazard if the one and only engine fails ? some jetfighters have multiple if one fails backup measures can be taken albeit with great difficulty ? ? sorry for such a naieve question .....im asking purely out of interest - and declare that ive no knowledge on this topic ( my areas are in org and strategic not aerotech ) but would like to know some ...thanks in advance for your info

One engine has always equated to greater risks in aviation.

The F-16 and Mirage-2000 have the same problem. But this is really a question of cost vs capability. This Soviet Union did not take such a risk and instead went ahead with the two engine Mig-29.

Two engines reduce the risk of crashing due to engine failure, but at the same time, the maintenance on two engines will be more expensive than if we built an aircraft on one engine. So, an air force would want something affordable as long as the crash rate is acceptable.

F-35 followed suit with a single engine primarily because of the requirement for vertical landing, where two engines don't benefit the design.

This is not a naive question at all.

 

[Kunal Biswas]

Vayu have flaws in reporting regarding National defense Projects, earlier same was repeated in Arjun report..

Anyways Still a great insight of past and its relation with present and future evolution for LCA ..

 

[ersakthivel]

There is no excess weight and no terrible drag.

PRODYUT DAS says single engine fighters are less reliabe .OK. Then WHY US is planning for atleast 1000 single engined F-35s?

PRODYUT DAS doesnot even know the cross section of the fuselage is as per the IAF's bigger radar dia requirement.
If you build smaller cross section fuselage will prodyut das fly along with a bigger radar on his head?

PRODYUT DAS once again expose his ignorance by comparing the wing of tejas to GNAT's ONE PIECE WING!!!!!!!!!!
He does not have the head to understand the composite tech used on the LCA wing !!!!!!!!!!!!

PRODYUT DAS's weght comparison with grippen is even more hilarious , He cleverly hides the fact that the larger wing of tejas has a purpose to give it lowest possible wing loading to carry more loads more efficiently on the high himalayan frontiers and climb quickly.
Bigger wings means higher weight.

Also by weight the grippen has 30 percent composites and LCA has 40 percent composites. But he once again confuses the reader by giving the surface composite percentage of 65 percent (actually it is close to 90 percent.)

There are lot of bull shit authors who do yellow journalism in india