IRIA News

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South Korea has awarded a second production contract for KF-21 Boramae fighter jets. Korea Aerospace Industries (KAI) secured a $1.76 billion deal with the Defense Acquisition Program Administration to produce 20 additional aircraft.

The new agreement follows a former $1.41 billion contract inked in June 2024 for the first batch of 20 fighters. With both deals combined, South Korea now has 40 KF-21 jets under production, with deliveries scheduled to begin in the second half of 2026 and conclude by 2028.

The KF-21 program is a strategic joint venture between South Korea and Indonesia. It aims to create a next-generation multirole fighter aircraft to gradually replace the aging fleets of F-4 Phantom II and F-5 Tiger II aircraft in the Republic of Korea Air Force (ROKAF).

The Boramae (“Hawk” in Korean) variant of the jet represents a technological leap toward a domestically developed, cost-effective alternative to fifth-generation Western fighters, combining modern performance with ease of maintenance and affordability.

According to KAI’s statement, the contract also includes logistics components such as technical manuals, maintenance training, and other operational support systems vital for smooth deployment. The company reiterated its confidence in meeting the production and delivery timeline, with initial deployment to the ROKAF expected within the next two years.

“Securing this second batch reaffirms the government’s trust in the KF-21 platform and signals our steady progress toward enhancing our airpower capabilities with indigenous technology,” KAI said in its official release.

Testing and performance benchmarks

Since its maiden flight in July 2022, six KF-21 prototypes have been undergoing rigorous flight testing. These evaluations, closely monitored by DAPA, are critical to ensuring the aircraft’s performance parameters meet operational demands before full-scale induction into the Air Force.

The KF-21 is classified as a 4.5-generation fighter, bridging the gap between current fourth-generation aircraft and future fifth-generation stealth platforms.

It incorporates advanced radar-absorbing materials and streamlined design elements to reduce radar cross-section, although it does not offer full stealth capabilities like the American F-35. The aircraft’s avionics suite includes indigenous active electronically scanned array (AESA) radar, infrared search and track (IRST) systems, and multirole combat capabilities.

At 17 meters in length with an 11-meter wingspan, the KF-21 has an empty weight of approximately 11,800 kilograms and can carry a payload of up to 7,700 kilograms. It is powered by two General Electric F414 engines, manufactured under license in South Korea by Hanwha Aerospace, with a combined thrust output of 110,000 horsepower. This allows the aircraft to reach speeds of Mach 1.8 (roughly 2,223 kilometers per hour) and operate at altitudes up to 16,700 meters, with a maximum range of 2,778 kilometers.

Hanwha’s engine supply deal

In a separate and parallel development, Hanwha Aerospace recently secured a $460.7 million contract to supply propulsion systems for the KF-21 program. The deal includes the production of 80 F414 engines, which will be delivered by December 2028.

“With our advanced aviation engine technology, we will ensure timely delivery of KF-21 engines and continue to contribute to the development of next-generation propulsion systems for national defense,” Hanwha stated in a recent statement.

With the latest deal, total investment in KF-21 propulsion now exceeds $872.7 million, reflecting the strategic priority placed on developing critical defense components domestically.

The propulsion contract includes a robust logistics support package, sustainment partnerships, and on-site technical assistance, all of which are crucial for lifecycle management and performance reliability in combat operations.

Strategic implications and export Potential

South Korea’s commitment to the KF-21 reflects a broader strategy to build a self-reliant defense industrial base amid growing regional tensions and increased competition in the Indo-Pacific. With traditional security partners like the U.S. focusing on great power competition, Seoul is increasingly seeking to diversify its military procurement and build exportable defense platforms that can compete on the global stage.

The KF-21 has already drawn international interest, with potential buyers including Poland, Peru, and the United Arab Emirates expressing preliminary interest in acquiring the aircraft. These countries are reportedly attracted to the KF-21’s combination of modern capability, cost-effectiveness, and faster delivery timelines compared to U.S. or European fifth-generation jets.

While no foreign sales have been finalized, the potential for export markets is a critical factor in the program’s long-term viability. Export success would not only help offset development costs but also establish South Korea as a credible player in the global fighter jet market.

A Vision for the 2030s

The South Korean government has laid out a vision to deploy up to 120 KF-21 Boramae aircraft by the early 2030s, thereby reshaping the ROKAF’s tactical aviation force. The initial production phase, now firmly underway, represents a significant milestone toward achieving that goal.

As regional rivalries intensify and technology continues to redefine the battlefield, the KF-21 stands at the crossroads of ambition and necessity. Its successful rollout could elevate South Korea into the ranks of elite fighter-producing nations, joining a select group that includes the United States, Russia, China, and a few European powers.

In the coming years, the performance, reliability, and affordability of the KF-21 will be under scrutiny, not only by Seoul’s defense planners but also by potential partners across the world looking for versatile alternatives in an increasingly polarized global arms market.