India has developed important rocket technology but has not yet developed a robust fighter jet engine.
Some claim that this is the case because cryogenic rocket technology is simpler and jet engine technology is more difficult, however, this is not true at all.
Both items present unique difficulties and issues.
In reality, the same fundamental physics concept governs both jet engines and rockets. They both release fuel out the rear.
The development of cutting-edge fighter jet engines has reached its apex in nations like the United States, Russia, and France.
None of the engine suppliers in the world is reluctant to supply aviation engines to India. They don't care about safeguarding technology, because An aero-engine is extremely challenging to reverse engineer. Precision engineering and high-temperature composites and alloys are two essential technologies in this industry that are very difficult to duplicate. Even China, which has years of copying experience, has not been able to reverse engineer a high-performance aircraft engine.
India is on track to create its own 5th generation AMCA multi-role fighter aircraft.
The fighter is probably a multipurpose combat aircraft built for air superiority, ground assault, bombing, intercepting, strike, and other sorts of missions.
Supercruise, stealth, AESA radar, maneuverability, and cutting-edge avionics are all combined in it.
The engine, which must be able to provide the performance required for a sophisticated aircraft, is the fundamental obstacle to the development of a Fifth Generation fighter.
India has been working on the Kaveri engine project for a long time, and the LCA Tejas was originally going to use this engine.
In order to help India reach its goal of being self-sufficient in military hardware, the ministry of defence has given its representatives till the earliest possible date to wrap up discussions with France to co-develop a new fighter jet engine.
For the next class of advanced medium combat aircraft (AMCA), India needs a new 110 kilonewton-powered engine. India has been in talks with France to use part of the offsets resulting from the Rafale fighter jet agreement to fund the project.