ADA Tejas (LCA) News and Discussions

[sgarg]

@shiphone, if they reduced the intake for F404, it means that margin is already there in the design. This is not a redesign.

 

[karn]

Bharat Rakshak "¢ View topic - Aero India 2013

Aero 2013...Kartik from BR forum..

Mao Sir scoffed at the suggestion that the engine was choking at higher alpha. He said there is no such thing, but rather because it was designed initially for the Kaveri's airflow and had to redesign it for the F-404. They have already tried various intakes on the LCA, with/without spring mounted doors on the intakes

Please read your own source.

 

[shiphone]

???

the current LCA mk1's intake is (Re)designed for fitting F404, and the New LCA MK2 would have another proper air intake for F414 ...

forget Kaveri...it's delinked, and it was never tested with so called initially designed air intake on LCA mk1...current intake is optimized for F404 engine.

you should understand ,every design should be tested in real, or the design is just a theory and calculation only...even the on-ground wind tunnel tests can't guarantee the validity of the 'design' . the matching rate between the engine and air-intake or even the whole plane should be tested under all condition (speed, altitude ,temperature etc... ) in real test flights...it will take loads of time, fund, and risk for test pilots to achieve the final result...the test might prove the design is valid and highly effective. but it might prove some mismatching under some conditions , then the design team should try to figure out the problem and fix it ,and be tested again...this is how the flight test work was done.

 

[Kunal Biswas]

If you can understand English then, Tejas design is around Kaveri design specs since late 80s ..

Their are no major change in intake design since then, The intake was always sufficient for +80kn engine which includes GE-414 Which fall in same league of Kaveri in both dimension, Power and weight ..

This should be abundantly clear, The topic is not new here either been discussed before ..

=============

We do not appreciate personal wild theories ..

???

the current LCA mk1's intake is (Re)designed for fitting F404, and the New LCA MK2 would have another proper air intake for F414 ...

forget Kaveri...it's delinked, and it was never tested with so called initially designed air intake on LCA mk1...current intake is optimized for F404 engine.

 

[karn]

???

the current LCA mk1's intake is (Re)designed for fitting F404, and the New LCA MK2 would have another proper air intake for F414 ...

forget Kaveri...it's delinked, and it was never tested with so called initially designed air intake on LCA mk1...current intake is optimized for F404 engine.

you should understand ,every design should be tested in real, or the design is just a theory and calculation only...even the on-ground wind tunnel tests can't guarantee the validity of the 'design' . the matching rate between the engine and air-intake or even the whole plane should be tested under all condition (speed, altitude ,temperature etc... ) in real test flights...it will take loads of time, fund, and risk for test pilots to achieve the final result...the test might prove the design is valid and highly effective. but it might prove some mismatching under some conditions , then the design team should try to figure out the problem and fix it ,and be tested again...this is how the flight test work was done.

Or I could listen to what the project head had to say on the matter rather than wasting time on ifs and buts.
Kaveri was meant for a lighter aircraft . When the 1995 requirements raised the weight and payload the kaveri was obviously insufficient . The post 1995 LCA was then designed with a modified more powerful kaveri in mind . The modified kaveri failed to meet the new requirements so ADA fell back to the 404 . The 414IN was found to have the requirements needed . Test bed airflow trials were done years ago . Indeed there were trials between the F 414 and the EJ2000 where the f414 won.
I never said that that there would be no need for real test flights . Dr Tamilmani , not me says that the intake for the tejas 2 is ready.

Dr Tamilmani says that the Tejas Mk-II does not require an intake re-design

The end .

 

[shiphone]

LOL.....and misuse the privilege...

so would you tell me what does this mean in post #4144 ...is it another One liner ?...

Mao Sir scoffed at the suggestion that the engine was choking at higher alpha. He said there is no such thing, but rather because it was designed initially for the Kaveri's airflow and had to redesign it for the F-404. They have already tried various intakes on the LCA, with/without spring mounted doors on the intakes

 

[karn]

LOL.....and misuse the privilege...

so would you tell me what does this mean in post #4144 ...is it another One liner ?...

Dr Tamilmani says that the Tejas Mk-II does not require an intake re-design

LOL
I too can use red text

 

[shiphone]

it's not a reply to you....LOL...easy...
---------------------
never mind, Another Aero India is coming ... I'm sure some experienced Enthusiasts would try to dig more interesting information about any development of these projects...

 

[Kunal Biswas]

Get some time off ..

so would you tell me what does this mean in post #4144 ...is it another One liner ?...

 

[karn]

Aero India ... For those who want to see the display from a better vantage point . Go to the village (unsmanhalli) further down the highway and watch it from the quarry there . The aircraft appear directly above you instead of at the horizon . It is worth it .

 

[sgarg]

My contention wrt F414 engine is that the parameters of F414 are known to ADA and have been known for a long time. The Mark II project has already started and some aspects of Mark 2 have been firmed up already.

Whatever changes are needed for F414 are KNOWN and will not be reason for a delay.

I think the bigger issues are radar, EW systems and weapons which will get attention in Mark 2.

 

[Kunal Biswas]

MK2 will be getting same EW suit as MK1, I did not hear any-changes ..

Radar will be uttam which is on his way, Same weapon suit as MK1 ..

 

[karn]

My contention wrt F414 engine is that the parameters of F414 are known to ADA and have been known for a long time. The Mark II project has already started and some aspects of Mark 2 have been firmed up already.

Whatever changes are needed for F414 are KNOWN and will not be reason for a delay.

I think the bigger issues are radar, EW systems and weapons which will get attention in Mark 2.

There are changes to the materials used as well as the internal piping .
Beyond this significant modifications to allow easier manufacturing . These will take more time than anything else .

 

[tejas warrior]

DRDO & HAL just needs FULL support of IAF.. MKII should not be a delayed project.

Current Defense minister is quite proactive and supportive of this project.

 

[Kunal Biswas]

Dash 3 HMDS ..

 

[lcafanboy]

Great News guys. Lca Tejas NP2 naval variant was airborne today at 12.28pm. LSP 2 chase plane.:cool2:

 

[Lions Of Punjab]

https://www.facebook.com/Livefist/posts/837112319660726

BREAKING: LCA Navy NP2 successfully completes its first flight. All systems check. This was a single-seat carrier fighter type.

 

[saik]

What ever nice projection they bought in on the top just before the rudder (Is it Aux Air Intake?), they could easily tuck it under the skin like here:
homebuiltairplanes. com /forums/attachments/firewall-forward-props-fuel-system/14625d1321560381-air-intake-options-ar-6primerfrontcua .jpg

 

[akshay m]

by the way,
got this from livefist.
what the heck is wrong with DRDO, what on earth is that F15 Doing on that poster

 

[saik]

They are reusing firang marketing brochure pics. It is definitely a shame!