LCA TEJAS MK1 & MK1A: News and Discussion

Tejbrahmastra

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1704889990659.png
 

Ugra Bhairav

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View attachment 235812
Chalo Accha hua!!!

Now go for MMRCA or Kaveri.

Lets see what bait India will take.

Dont think even France with join India in engine development, arm twisted by Amrika.
 

shade

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Chalo Accha hua!!!

Now go for MMRCA or Kaveri.

Lets see what bait India will take.

Dont think even France with join India in engine development, arm twisted by Amrika.
Nobody will share their "crown jewels", especially with authoritation, non-free, communal, "fake democracy" country like India. :bplease:

Our best bet to get engine tech was from the randikhana that was RusFed right after the collapse of the USSR in the 90's, in those days before KGB James Bund took over, everything was for sale.

Now that door is also closed
 

Ugra Bhairav

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Babu I've worked with these Americans on an Industrial turbine maintenance program.

These people were not even willing to share the know-how of how to replace the blade of a compressor stage, let alone transfer the tech to us.
I wonder how our Baboos placed such faith in them for a project as critical as the Tejas program.

@angryIndian

India will have to swallow bitter pill, there is no other way out then your own engine. It is only drama and will intensify with each passing year.

You dont help your budding rival. Massage is loud and clear.
 
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Ugra Bhairav

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Nobody will share their "crown jewels", especially with authoritation, non-free, communal, "fake democracy" country like India. :bplease:

Our best bet to get engine tech was from the randikhana that was RusFed right after the collapse of the USSR in the 90's, in those days before KGB James Bund took over, everything was for sale.

Now that door is also closed
Forget Technology (Its a farce it is never more then SREWDRIVER) you are now facing problems in even getting PLANE VANILLA ENGINES.

India dont need Russian Engines. Go and check Turbine temperature of AL-31 & Kaveri.

You will see that proven in next 5 years. Mark my words.
 
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Blademaster

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Forget Technology (Its a farce it is never more then SREWDRIVER) you are now facing problems in even getting PLANE VANILLA ENGINES.

India dont need Russian Engines. Go and check Turbine temperature of AL-31 & Kaveri.

You will see that proven in next 5 years. Mark my words.
It is not just temperature but maintaining constant high rotation without vibrating at high operating temperature which is something that AL-31 can but Kaveri cannot.
 

Satish Sharma

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It is not just temperature but maintaining constant high rotation without vibrating at high operating temperature which is something that AL-31 can but Kaveri cannot.
The vibration problem and high sound at full throttle were solved with the help of snecma (now Safran) the fact that its dry thrust of kaveri is 52kn itself is a big achievement and wet thrust of 81kn.
Kaveri has 6 HP stages whereas Ge f414 &404 has 7 HP stages....
All thanks to single crystal blades.this is another big achievement... What sucks right now is metallurgy , f404 variants used makes around 54kn dry &90kn wet and kaveri's time to sustain afterburner seems less. Kaveri was designed for 12 ton mtow the increase in mtow in the middle of project has hampered both the projects.. kaveri can power with less payload..
Tessy Thomas in a interview has already said that kaveri is fully capable for lca tejas already...
 
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SilentlAssassin265

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Tessy Thomas in a interview has already said that kaveri is fully capable for lca tejas already... She also said weight of kaveri is going to be further reduced as some components metallurgy can be replaced by light weight alloys... Some say kaveri weight around 1180kg. And f404 1040kg.
Will it last for 40 years as f404 does?
Russia has 80 years of experience in making jet engines, still thier engines are shitty
 

BON PLAN

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Will it last for 40 years as f404 does?
Russia has 80 years of experience in making jet engines, still thier engines are shitty
Russia has another logic than west one : they want rustic and affordable weapons, so they assume not to have world top standards.
The price of a russian fighter << a west one.
So is MBT price, Kalash price....

They want quantity over quality. Quantity is a quality in itself....
 

NutCracker

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Tessy Thomas in a interview has already said that kaveri is fully capable for lca tejas already... She also said weight of kaveri is going to be further reduced as some components metallurgy can be replaced by light weight alloys... Some say kaveri weight around 1180kg. And f404 1040kg.
Strap it to a fukcin Mig29 already...
PMO should literally take direct control over the DRDO. It's getting annoying now.
 

Satish Sharma

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Will it last for 40 years as f404 does?
Russia has 80 years of experience in making jet engines, still thier engines are shitty
Well life is not calculated on years its on hours.
F404 had 3000-4000 hrs back then in 2010s.
Now some say f404 variant we using has a life of 6000-7000hrs..and overhaul time of 4000hrs. Gtre has not opened up what is life of kaveri. Nobody knows 😑
The life of engine largely depends on how capable SINGLE CRYSTAL BLADES we have made....gtre has done alot of work on it it seems that kaveri will not have engine life less than a rd33. As r33 does not use SCB still it has life of 4000hrs (some might say It's 2200hrs because it's of rd93 variant of rd33 ,reduced life to compensate thrust for jf17)..
Both rd33 & kaveri are quite similar engines in terms of thrust rd33. But as it does t have strong SCB it has to use 4 LP stages & 9 HP stages..

Russia has another logic than west one : they want rustic and affordable weapons, so they assume not to have world top standards.
The price of a russian fighter << a west one.
So is MBT price, Kalash price....

They want quantity over quality. Quantity is a quality in itself....
Russian equipment is cheaper to buy but very expensive in long term. Simply there spares do t last that much compared to western counterparts the overhaul time of engines is very low compared to western counterparts..
Strap it to a fukcin Mig29 already...
PMO should literally take direct control over the DRDO. It's getting annoying now.
Our babus will not let this happen.
Testing it on mig29 is not going to be easy it will not fit on that. Engines are modular to fit on any aircraft. Both have different dimensions kaveri is smaller in diameter & length it will require alot of changes in mig 29. If it is done it's worth rather than testing on single engine aircraft as even if kaveri fails we won't loose the aircraft
 

NutCracker

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Well life is not calculated on years its on hours.
F404 had 3000-4000 hrs back then in 2010s.
Now some say f404 variant we using has a life of 6000-7000hrs..and overhaul time of 4000hrs. Gtre has not opened up what is life of kaveri. Nobody knows 😑
The life of engine largely depends on how capable SINGLE CRYSTAL BLADES we have made....gtre has done alot of work on it it seems that kaveri will not have engine life less than a rd33. As r33 does not use SCB still it has life of 4000hrs (some might say It's 2200hrs because it's of rd93 variant of rd33 ,reduced life to compensate thrust for jf17)..
Both rd33 & kaveri are quite similar engines in terms of thrust rd33. But as it does t have strong SCB it has to use 4 LP stages & 9 HP stages..



Russian equipment is cheaper to buy but very expensive in long term. Simply there spares do t last that much compared to western counterparts the overhaul time of engines is very low compared to western counterparts..

Our babus will not let this happen.
Testing it on mig29 is not going to be easy it will not fit on that. Engines are modular to fit on any aircraft. Both have different dimensions kaveri is smaller in diameter & length it will require alot of changes in mig 29. If it is done it's worth rather than testing on single engine aircraft as even if kaveri fails we won't loose the aircraft
Length might be some issue, but diameter is no biggy, I bet at some point even French would've tested their m88 on Rafales while having one ge404 in the parallel.
 

Ugra Bhairav

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Nobody will share their "crown jewels", especially with authoritation, non-free, communal, "fake democracy" country like India. :bplease:

Our best bet to get engine tech was from the randikhana that was RusFed right after the collapse of the USSR in the 90's, in those days before KGB James Bund took over, everything was for sale.

Now that door is also closed


 

Satish Sharma

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He is just giving the 52/81kn number which gtre published at some Exhibition.. m88-2 makes 85-90kn ,m88-3 makes 96-105kn..
Kaveri does not surpass any of engine he said even rd33 makes 81kn..
The 73kn number is quite old it might be possible that in this period gtre have improved it. To 81kn.
I remember a video of defence Decode some years ago he asked the gtre officials they said kaveri thrust is 52/81kn but it does not sustain wet thrust for that longer durations..
However there could be alot of things which are not public..

Screenshot_2024-01-11-19-53-21-25_40deb401b9ffe8e1df2f1cc5ba480b12.jpg
 

BON PLAN

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Russian equipment is cheaper to buy but very expensive in long term. Simply there spares do t last that much compared to western counterparts the overhaul time of engines is very low compared to western counterparts..
It is something we often forget when we want to purchase a car, a washing machine, etc... THE PRICE OF SPARE PARTS.
Maybe it was also the case here.
 

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