You have misunderstood my post. I do not suggest that we should develop multiple large turbofan engines. My inquiry is the opposite of that. I'm simply asking if it's possible to convert(further develop) an engine like F110 to a 5th gen engine without requiring a clean-sheet design.If you have the money, TEI could produce a variable-cycle engine for you if needed. However, the Turkish engine industry simply doesn’t have the capacity to develop multiple high-performance jet engines simultaneously. For example, TEI has stated that they currently lack the resources to develop a local engine for the Hürjet.
And, there is no such thing as 4.5th gen Kaan.
As limited as my engine knowledge, I think variable-cycle engine is a few leagues above TEI's current know-how.
how do you designate Block 10 KAAN when the higher-ups at TAI themselves define it as a 4.5th gen plane?