I'll give you one.
The LCA program started in 1984. Design was finalised in 1990. First flight was in 2001. 5 years from decision to design, 10 years from design to flying prototype. If all the other elements were in place it would be ready for production within 5 more years.
Compare with Gripen - program starts in 1980, contract in 1983, prototype in 1987, first flight in 1988 (due to indigenous FBW issues), first serial production in 1994. And Sweden already had experience with modern fighters.
Tejas meant to be developed and produced domestically so importing components was contrary to the aim of the program and
India wasn't in a hurry.
Here's something that most people miss about Tejas -
the aircraft that IAF bought in the 1980s:
- 40 MiG-23MF from 1982
- 40 Mirage 2000T from 1985
- 40 MiG-29 from 1987
- replacement MiG-21s (built by HAL, total number built is over 800 since 1964)
- 160 Jaguars from 1979 (120 built by HAL)
- 95 MiG-23BN from 1981
- 210 MiG-27 from 1985 (built by HAL)
Here:
View attachment 104478
Why buy and obsolete and inefficient airframe to install western systems? The very point of Tejas was to have a modern and efficient airframe.
One of the reason why Romania modernized its MiG-21s instead of MiG-29s in the 90/00s was because there was not much difference in performance and economies of scale favored LanceR. With good ground control or AEW a MiG-21 with helmet cueing and modern combat system is not much worse. So why would India buy MiG-29 when they had Bisons?
Poland uses MiG-29 and F-16 and tested Mirage and Gripen in 1998-2002. Here's what the pilots say about the Fulcrum vs the others:
- lack of ARH missiles disqualifies it in modern BVR combat (duh)
- weak and primitive radar greatly reduces situational awareness
- IRST is limited to R-73 range so it doesn't help
- no ground attack capability
- lack of FBW and outdated control systems make flying it a chore mentally and physically.
- Luftwaffe pilots were impressed after 1991 because they could only compare it to F-4
Also if you want the tactical benefits of a two-seater aircraft you can forget about MiG-29. It's airframe is optimized for single-seater performance and the UB handles poorly and is very cramped and inefficient and also pay attention to the nose. Where is the radar?
View attachment 104482
Also there's no aerial refueling. Which is why MiG-35 had to be completely redesigned compared to MiG-29 and MiG-29K/M... to offer 1999 quality
in 2019.