Design of long-delayed KF-X still in debate

After a decade-long delay, Korea’s indigenous fighter program is about to officially hit the road with bidding by partner firms scheduled for next month.

However, which design concept to go with — a single- or twin-engine aircraft — is emerging as the biggest sticking point in the program, codenamed KF-X.

Currently, the state-run Agency for Defense Development (ADD), siding with the Air Force, claims the nation’s future fighter should be a two-engine, clean-sheet aircraft, proposing a design labeled C103.

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