Korea Aerospace Industries (KAI) has told Jane's at ADEX 2017 that it is in the process of refining the final configuration of its Korean Fighter Experimental (KFX) aircraft ahead of a number of milestones that are due in the coming months and years. 

The company revealed the baseline twin-jet configuration has already been chosen, the final refinements are now taking place ahead of a planned preliminary design review (PDR)  in June 2018. This PDR would be followed by a critical design review (CDR) in September 2019; a rollout of the first prototype in 2022; and an entry into service in 2026.