LCA TEJAS MK1 & MK1A: News and Discussion

[Trololo]

Al 41 is just an improved version with a new name so that they can charge more money for license fees.

Why pay for AL 41 then better wait for the new su 57 engine IZ 30 derivative.

IZ 30 have 100+ kn dry thrust and will be suitable for next 25-30 yrs demand.

This is an interesting point. One can go for a complete revamp of the MKI's airframe and avionics in the first set of upgrades, including a GaN radar. These can be detuned for a lower power output as of now to work with the Al-31 engine. By 2025 once our economy is in much better shape we can see if the item 30 engine works for us in the MKI. If it does then it won't be a bad idea to pay for an engine upgrade. In that way the MKI upgrade can be broken into 2 phases:

1> Phase 1: Airframe overhaul, new avionics from LCA Mk2 and AMCA programs, with progressive blocks of improvements year after year.
2> Phase 2: Engine upgrade.

Note that all avionics won't be ready so soon. So if MKI upgrade starts next year, then we can at least expect for the first block (the oldest MKIs) to get their airframes overhauled, and all existing Indian tech to be fitted in, along with whatever foreign kit that needs to go. The next block can have scaled up Uttam GaAs radar and LAD, the one after that can have AMCA type GaN radar and deep sensor fusion, etc etc.

 

[Lonewolf]

This is an interesting point. One can go for a complete revamp of the MKI's airframe and avionics in the first set of upgrades, including a GaN radar. These can be detuned for a lower power output as of now to work with the Al-31 engine. By 2025 once our economy is in much better shape we can see if the item 30 engine works for us in the MKI. If it does then it won't be a bad idea to pay for an engine upgrade. In that way the MKI upgrade can be broken into 2 phases:

1> Phase 1: Airframe overhaul, new avionics from LCA Mk2 and AMCA programs, with progressive blocks of improvements year after year.
2> Phase 2: Engine upgrade.

Note that all avionics won't be ready so soon. So if MKI upgrade starts next year, then we can at least expect for the first block (the oldest MKIs) to get their airframes overhauled, and all existing Indian tech to be fitted in, along with whatever foreign kit that needs to go. The next block can have scaled up Uttam GaAs radar and LAD, the one after that can have AMCA type GaN radar and deep sensor fusion, etc etc.

First block won't be upgraded ,only hal made one will be upgraded , rest sukhoi will be retired in 2030's , also sukhoi airframe is good design but not that best to be used forever like Chinese do with j11 and j16 , we may see jn future , orca with indigenous engine , replacing sukhoi fully

 

[Vamsi]

May be its possible to use modified Afterburner version of HTFE-25 with 30 KN dry thrust and 45KN wet thrust

I always wondered why they didn't choose twin engine version while designing Tejas with two small 45KN engines instead of a large 90KN engine.

 

[Lonewolf]

I always wondered why they didn't choose twin engine version while designing Tejas with two small 45KN engines instead of a large 90KN engine.

Fuel efficiency , maintenance and a lot of hassle ,you didn't took in account , single engine fighter are backbone low maintenance jets required to do a lot of load work

 

[Vamsi]

Fuel efficiency , maintenance and a lot of hassle ,you didn't took in account , single engine fighter are backbone low maintenance jets required to do a lot of load work

What you said is true, but with two small 45KN engines, Tejas would probably flying with indigenous engines by now. What I mean is we should have gone with small engine first, instead of a large one.

 

[ketaki]

What you said is true, but with two small 45KN engines, Tejas would probably flying with indigenous engines by now. What I mean is we should have gone with small engine first, instead of a large one.

and little more independent of possible sanctions on engines by burger boys

 

[Vamsi]

 

[Vamsi]

Guys,Python was successfully test fired by Tejas yesterday

What does they mean by enhanced capability of derby? Is it I-Derby-ER then?

 

[FalconSlayers]

I see it also has a smokeless propellant as our Astra, but the Python has a yellowish colour, our has a pinkish colour.

 

[Vaibhavseafarer]

 

[Bleh]

Y'all Nibbiars..

 

[mist_consecutive]

I see it also has a smokeless propellant as our Astra, but the Python has a yellowish colour, our has a pinkish colour.
View attachment 87085View attachment 87086

ASRAAM, AIM-9X, Python all use the same type of propellant (sodium-based), hence the yellow-orange color. Astra probably uses pottasium based propellant, which gives it a pink color.

 

[FalconSlayers]

ASRAAM, AIM-9X, Python all use the same type of propellant (sodium-based), hence the yellow-orange color. Astra probably uses pottasium based propellant, which gives it a pink color.

Potassium based is a better propellant

 

[mist_consecutive]

Potassium is a better propellant

Hard to say, either can be better, or very similar in performance since both these metals have pretty similar properties.
However, it will be interesting if DRDO invented this propellant because it has more energy density.

 

[fire starter]

Yesterday only block 3 version of junk fighter was spotted with pl 10 missile many porkis started jumping and claiming that PAF is now having edge in WVR combat. Now within next day IAF has test fired world's best close combat missile python 5 from tejas lol.

 

[FalconSlayers]

Yesterday only block 3 version of junk fighter was spotted with pl 10 missile many porkis started jumping and claiming that PAF is now having edge in WVR combat. Now within next day IAF has test fired world's best close combat missile python 5 from tejas lol.
View attachment 87113

We have the world’s best Close Quarter Missile #ASRAAM
We have the world’s best Within Visual Range Missile #Python5
We have the world’s best Beyond Visual Range Missile #Meteor.

 

[Blank]

Yesterday only block 3 version of junk fighter was spotted with pl 10 missile many porkis started jumping and claiming that PAF is now having edge in WVR combat. Now within next day IAF has test fired world's best close combat missile python 5 from tejas lol.
View attachment 87113

They only had edge for less then 1 day.

 

[FalconSlayers]

 

[FalconSlayers]

Mission envelope of LCA MK1A and LCA MK-II

 

[FalconSlayers]