It is now abundently clear Tejas alone will not solve the IAF's current righter shortage. The most OPTIMISTIC outcome in Tejas production is 1 new fighter squadron a year and that is giving HAL a hell of a lot of credit and assuming they revolutionise production in the next year or so, but lets run with it.
Second production line is already operational since 2021.
And third production line is coming online in Nashik.
This year and next year you will retire 2 MIG-21 sqds, and maybe add one MK1A sqd (as flight testing not completed and production not started yet), so you are minus one combat sqd in 2025 already.
2026 you make one more Tejas sqd and make up the minus one deficit, so you are pretty much where you are right now (in 2024) in terms of sqd numbers.
Firstly, when inducting 4.5 gen aircrafts, and replacing a 3rd gen fighters. You dont need 1:1 replacement. And Tejas Mk1A is 4.5 gen aircraft with AESA radar + BNET SDR +ODL D/L+ASPJ.
By 2026 however you will have 6 sqds of Jaguars that will be around 50 years old, they will need replacing, so 6 sqds will take another six years (assuming you phase out one sqd per year and add 1 Tejas sqd), that takes you up to 2032, and by then of course 3 Mirage 2000 and 3 MIG-29 sqds will need replacing, so another 6 sqds over 6 years taking you up to 2038.
Starting from 2028, not 2026, Jaguar starts retriring, thats correct. Thats why more 97 Tejas Mk1A is on cards.
Sp by 2038 IAF will essentially have replaced all MIG-21/29 and Jag sqds with Tejas and remain the same size in sqd size as it is now. See the issue?
By 2038, you will have 11 Squadrons of Tejas Mk1A, and if Tejas Mk1 upgraded to Mk1A, then around 15. And 3-4 squadrons of Tejas Mk2, and hopefully 1 squadron of AMCA mk1. Also we should remember CATS starts to come online by then.
Furthur, as have I explained, you dont need 1:1 replacement.
You can pretty much discount TejasMK2 and AMACA till around 2040.
Why? Now you are just daydreaming. There are risk associated with AMCA because of certain technologies, but not with Tejas Mk2. Even they are so confident, that first prototype of Tejas Mk2 would be production variant.
By then PAF and PLAAF will pretty much be entirely 4.5th/5th gen going by PAF current induction rates and PLAAF induction rates.
Even USAF is not going to be fully 5th gen, even by 2050. Leave alone PLAAF or PAF.
USAF always depend on force-mix, same case with IAF.
The only answer to this for India is to make a very large order of a foreign fighter and assemble it in India. Issue is
F-21 = V upgrade very good, but feel IAF psychologically will not accept an F-16
F-15 = Very expensive and usefulness against stealth debatable
F-18E/F = Production ended/ending
Gripen = Good option, but very similar to Tejas but can give numbers quickly
F-35 = Not on table
SU-57 = Hard for Russia to commit to any mega deal right now I imagine
Looks like you need to bit the bullet and just order 120 Rafales or KF-21 (uses F414 engine so that can be handy)
Now you must be joking. We not going to buy any of this aircrafts, rather MKI UPG and Rafale in limited numbers, which is already happening.
And if you know, we are already indigenizing DFCC for MKI. Now you can connects the dots.