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South Korea Completes KF-21 Fighter Jet Flight Tests

January 13, 2026

2 min read

Key Takeaways

South Korea completes KF-21 flight test program.
1,600 flight tests conducted over 42 months without accidents.
KF-21 system development to finish in H1 2024.
Deliveries to ROKAF to start in H2 2024.

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Strategic Implications

The completion of the KF-21 flight test program may signal a significant milestone for South Korea's indigenous defense capabilities, which could enhance its regional security posture. The successful test program suggests that the KF-21 is on track to meet its performance expectations, which may make it an attractive option for export customers, potentially altering the regional balance of power.

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What Happened

Indigenous Fighter Program Achieves Key Milestone Ahead Of Schedule

South Korea has completed the flight test program for the KF-21 Boramae jet, a key milestone for the indigenous fighter program. The test program, which included approximately 1,600 flight tests over 42 months, verified the KF-21’s flight stability and performance without a single accident. Following the completion of the flight test program, the Defense Acquisition Program Administration will move on to completing the KF-21 system development program in the first half of this year, with deliveries to the Republic of Korea Air Force expected to start in the second half of the year. The development was announced by the Defense Acquisition Program Administration in a press release, as reported by Breaking Defense.

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