They are developing 125 Kn Engine with France that can provide the desired performance ........it will take few years to develop that Engine .
but for Initial testing they can use American GE 414 .......just like Russia is using older
AL-41F1 engines for testing but they will replace it with new Izdeliye 30 Engines in the final product .
French will not give engine just like that. India will have to invest heavily. I don't understand what kind of logic India is using in Kaveri engine development. Why not invest heavily by a rapid construction of testing facility and hiring heavily to split up work and hence build experience much more quickly? If Modi doesn't do it who else will?
Even if Supercruise is needed, Rafale can supercruise with 19ton (fuel 4 ton + weapons 4 ton + aircraft 11ton) weight using 50kN dry and 75kN wet thrust engine. Why can't AMCA supercruise with 53/85kN twin engines? If we are speaking of unstealthy one with external weapons hardpoints and fuel pod, then 60/90kN should be enough. Supercruise means speed of 1225kmph at sea level at room temperature. But as height increases the speed of sound decreases. At 30000ft, 1mach is 1090kmph. So, a plane that can go at a speed of 1100kmph at high altitude is said to be supercruising.
This supercruise can't be used for bombing missions as that would require maneuverability and careful targeting. I don't really see a need to have 1.5mach or 2mach cruise speeds. AFAIK, cruise speed of 1.1 mach is more than enough. So, asking for 120kN engines etc is meaningless. Moreover, it is the dry thrust that is responsible for supercruise,which is generally 2/3rd of maximum wet thrust. 80kN dry thrust is really not needed. It is only a good to have. 60-65kN dry thrust would be enough for even the non stealth AMCA supercruise
