Profile
- Origin
- South Korea
- Built by
- Korea Aerospace Industries
- Type
- Fighter aircraft
- Service note
- 2020s-present
- Produced
- 2024-present
- Developed from
- KF-X program
Also Known As
- KF-21
- KF-21 Boramae
- KF-X
The KAI KF-21 Boramae is a South Korean fighter aircraft developed by Korea Aerospace Industries for the Republic of Korea Air Force. KAI's program history records the first prototype rollout, maiden flight in July 2022, supersonic flight in February 2023, and first serial-production rollout in March 2026.
Prototype and early production fighter held in the Various Conflicts bucket.
Timeline
KAI's program history notes the indigenous fighter development push and approval of the KF-X basic strategy in 2015.
Sources: KF-21 | KAI
KAI records the start of final assembly and the first prototype roll-out in the development timeline.
Sources: KF-21 | KAI
KAI says the KF-21 completed its first flight on 19 July 2022.
Sources: KF-21 | KAI
KAI's timeline records the first supersonic flight, followed by weapons separation tests with Meteor and AIM-2000.
Sources: KF-21 | KAI
Aviation Week reported that KAI rolled out the first KF-21 Blk. 1 production aircraft at Sacheon, with ROKAF delivery scheduled for September 2026.
Sources: KAI Rolls Out First KF-21 Blk. 1 Production Aircraft





