South Korea’s Air Force has taken delivery of its first production KF-21 Boramae, a Block I aircraft assigned to the reactivated 156th Fighter Squadron at Yecheon Air Base. According to GlobalData, an intelligence and productivity platform, the delivery is more than a self-reliance milestone: it marks the moment an export proposition became credible, since the sensors Washington declined to share with Seoul a decade ago are now Korean-owned, giving the country authority over how the fighter is configured, upgraded and offered abroad. In April 2015, the United States declined to transfer four core technologies for the programme: an AESA radar, an infrared search-and-track sensor, an electro-optical targeting pod and a radio-frequency jammer; South Korea developed all four domestically, and the aircraft’s domestic content now stands at around 65%.

GlobalData’s report, “The Global Military Fixed Wing Aircraft Market 2026-2036,” projects South Korea will spend approximately $12 billion on combat aircraft procurement over the next decade, close to 5% of the $247.4 billion forecast for the Asia-Pacific region as a whole. “The US refusal to release the KF-21’s technologies has become the aircraft’s strongest selling point. With those systems now being Korean, Seoul can modify, upgrade and clear the KF-21’s mission systems for foreign buyers without seeking another government’s approval,” said Udayini Aakunoor, Aerospace and Defense Analyst at GlobalData. “Export customers value that control because a fighter’s combat relevance over decades of service depends on who decides its upgrades. The GE-designed F414 engine is now the principal remaining external dependency, which is why Hanwha Aerospace’s indigenous engine program for the Block III variant carries strategic weight beyond propulsion.”

The Block I aircraft enters service armed with MBDA’s Meteor beyond-visual-range missile and Diehl’s IRIS-T short-range missile, with initial operational capability expected in the second half of 2027. “Pairing a Korean radar with European missiles gives the Republic of Korea Air Force an air-to-air kill chain integrated by Seoul and its European partners, not tied to US software baselines. The Meteor’s throttleable ramjet conserves energy for the endgame, giving it a no-escape zone of more than 60km that allows KF-21 pilots to maintain a large engagement radius against escorting fighters,” Aakunoor said.

Korea Aerospace Industries’ existing light combat aircraft customers form a ready pipeline: the Philippines ordered 12 additional FA-50 Block 70 aircraft in June 2025, and informal discussions on the KF-21 are reported to be under way with Manila. “If Korea Aerospace Industries can convert its FA-50 export partnerships already established with the Philippines, Poland, Malaysia, and others into orders for KF-21s, Seoul will join the select group of nations that not only build combat aircraft but also control their own full mission system architecture. This would enhance South Korea’s status as both a sophisticated multirole fighter jet exporter and a sovereign defence technology provider, positioning it alongside the leading worldwide players,” Aakunoor said.