South Korea's KF-21 Fighter Jet Closes In on First Export Deal With Indonesia

SEOUL — South Korea's KF-21 Boramae fighter jet is closing in on its first export deal with Indonesia, marking a significant milestone for the country's defence industry.

Indonesia was a development partner on the KF-21 program, contributing funding in exchange for technology transfer and a share of the production. The two countries have been in negotiations over final terms for a purchase agreement.

The KF-21 is a 4.5 generation fighter developed by Korea Aerospace Industries. It made its first flight in 2022 and is designed to replace aging F-4 and F-5 fighters in the Korean Air Force.

Export market entry

A deal with Indonesia would mark Korea's entry into the advanced fighter jet export market, joining a small group of nations capable of developing and selling modern combat aircraft.

South Korea has been aggressively expanding its defence exports in recent years, with significant sales of tanks, artillery and naval vessels to countries including Poland, Australia and the Middle East.

The fighter jet market is a higher tier of defence exports, with larger contracts and longer-term strategic partnerships.

Indonesia partnership

Indonesia agreed to cover 20% of the KF-21 development costs, though payment disputes have complicated the partnership. Despite the financial issues, both countries have continued the program.

For Indonesia, the KF-21 is an alternative to American and European fighters that come with more restrictive conditions on use and modification.

President Prabowo Subianto has been working to strengthen defence ties with both traditional partners and new suppliers as Indonesia seeks to modernise its military.

Regional context

The deal comes amid rising tensions in the Indo-Pacific region. President Marcos of the Philippines has directed the army to boost defence amid new threats, while Taiwan is facing increased pressure from China.

South Korea itself is navigating complex relationships with both the United States and China while dealing with the ongoing threat from North Korea.

Domestic politics

The potential export deal comes as President Yoon Suk-yeol's approval rating hit a new high since his inauguration, according to a Yonhap poll.

The ruling party has introduced a prosecution reform bill at a plenary session, triggering a filibuster from the main opposition. The political battle reflects ongoing tensions over judicial reform in South Korea.

Defence exports have been a political success story for the Yoon administration, with sales to Poland and other countries generating significant revenue and demonstrating Korean industrial capability.

Technical specifications

The KF-21 is powered by two General Electric F414 engines and can reach speeds of Mach 1.81. It has a combat radius of approximately 1,300 kilometres and can carry a range of air-to-air and air-to-ground weapons.

The aircraft is designed to be more affordable than fifth-generation fighters like the F-35, while still providing advanced capabilities. This price point makes it attractive to countries that cannot afford or do not require the most expensive options.

South Korea plans to produce 120 KF-21s for its own air force, with the first operational aircraft expected to enter service in 2026 or 2027.

Competition

The KF-21 faces competition from other 4.5 generation fighters including the Eurofighter Typhoon, Dassault Rafale and Boeing F-15EX. However, its combination of capability and cost makes it competitive for buyers seeking to modernise their air forces without the expense of stealth aircraft.

For Indonesia, the KF-21 has the added advantage of having been partially developed with Indonesian funding and participation, giving Jakarta some industrial benefits from the purchase.

A successful export to Indonesia would validate South Korea's approach to defence industrial development and potentially open doors to other markets in the region and beyond.

Other countries that have expressed interest in the KF-21 include Malaysia, the Philippines and several Middle Eastern states. The ongoing conflict in the region has increased demand for advanced military equipment.