Event Brief
South Korea says KF-21 development complete after 1,600 sorties
By The BriefBrief · Sources (3)
Filed: Sep 14, 2026 at 3:00 PM ET
Summary: South Korea flew six KF-21 Boramae Block I prototypes on nearly 1,600 sorties over 42 months and declared the development complete in July 2026. The program covers 40 Block I aircraft contracted for delivery by 2028, with 80 Block II aircraft to follow, and Block II adds ground and maritime strike.
WHO: South Korea
WHAT: South Korea declared KF-21 development complete after nearly 1,600 sorties by six prototypes over 42 months.
WHEN: Jul 1, 2026
WHERE: South Korea
WHY: Cause not yet established.
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