South Korean Air Force Receives Second Production KF-21B In October 2026, the Republic of Korea Air Force received the second serial KF-21B fighter with tail number 26-002 - a two-seat modification of the multi-role KF-21 Burma. The vehicle was delivered to the 16th Fighter Wing at Yecheon Air Base (Gyeongsangbuk-do Province), where the 156th Fighter Squadron - the first unit to control the KF-21 - is stationed. The first production aircraft 26-001 was delivered to the Air Force on September 22, 2026. By 2028, the Air Force plans to receive 40 Block I aircraft designed for air superiority. In the future, it is planned to order 80 Block II vehicles with extended capabilities for hitting ground targets, and the total KF-21 fleet of all modifications should be about 120 units. On October 23, 2026, a KF-21B (26-002) participated for the first time in a joint flight with American and South Korean aircraft as part of Exercise Freedom Flag 26-2.