License manufacturing is a different thing indians also licenese manufacture Russian Al-31FP engines of Su30MKI in huge numbers and they’re doing it for last 20 years but it’s entirely different from their Kaveri turbofan engine which they developed on their own from scratch and it took them 40 years to develop this 81kN Turbofan engine it’s design is inspired by western engines because Russian engines are fuel guzzlers and produce a lot of heat signature though they’re better than western engines in terms of strength of the materials used , components of Russian engines don’t break easilyTurkey isn't starting from scratch, it been developing turbofans and components for several different projects.
- General Electric T700 (T700-TEI-701D variant) for the T-70, a local variant of the S-70 Black Hawk
- General Electric F110 engines
- LHTEC T800 turboshaft engines for rotary wing applications such as the T-129 Atak[better source needed]
Parts and modules
Heat signauture and high maintenance cost on Russian engines is the reason why India is not using Russian engines in their indigenously developed jets and since Kaveri engine failed to produce 90kN thrust they have started developing a new 6th generation engine of 120kN thrust but it’s not from scratch like Kaveri they will utilize all the technologies they developed in last 40 years of continuous and extensive research this time they’re likely to collaborate with a French or British engine manufacturer.
It’s important to note that these western engine manufacturers will transfer technology to India once they have realized that india is close to develop it’s own hot core section of the turbofan engine indigenously which i think India can do atleast for a 91kN engine