South Korea’s Defense Acquisition Program Administration announced the successful completion of safety separation flight tests for its indigenously developed long-range stealthy air-to-ground missile.
The tests, conducted on Jun. 23 at the Republic of Korea Air Force’s 3rd Training Wing in Sacheon, Gyeongnam Province, involved the Sky Dragon (Cheonryong) missile separating from a modified FA-50 Golden Eagle trainer aircraft. The safety separation flight test verified that the missile could separate from the aircraft without interfering with the aircraft’s structure or external attachments, and confirmed that aircraft response characteristics during separation do not impair mission performance.
“This successful safety separation flight test represents passing a crucial gateway in long-range air-to-ground missile development,” said Jung Kyu-heon, Director of DAPA’s Future Defense Program. “Future package exports of KF-21 and missiles could enhance overseas market competitiveness.”
The test represents the culmination of extensive preparation work that began in April 2025. The modified FA-50 conducted 31 sorties over a three-month period, undergoing flight control safety assessments, load testing, avionics integration, and environmental testing before proceeding to the separation test phase. The FA-50 assumed this testing role following the retirement of the F-4 Phantom II fleet in June 2024, which had previously served as the primary platform for missile separation testing. The FA-50 was selected for initial testing due to its availability and lower operational risk compared to frontline combat aircraft. The aircraft underwent extensive modifications to accommodate the missile’s integration requirements and testing instrumentation.
The Sky Dragon missile program began in 2018 as a second-phase project following South Korea’s initial acquisition of German TAURUS missiles for its F-15K fleet. The program aims to develop an indigenous long-range precision strike capability with performance equal to or exceeding that of the TAURUS KEPD-350 system.
From 2019 to 2021, exploratory development focused on incorporating stealth design principles and precision guidance technology. The program entered full system development in 2022, with completion targeted for 2028 and production scheduled through 2031. The total program investment reaches 810 billion won, including 310 billion won in development costs and 500 billion won for production.
The Agency for Defense Development leads the program, with LIG Nex1 serving as the prime contractor and Hanwha Aerospace developing the propulsion system. The missile is designed specifically for integration with the KF-21 Boramae fighter, South Korea’s indigenous combat aircraft currently under development.
The Sky Dragon measures 4.9 meters in length and employs a turbofan engine for propulsion, achieving speeds close to Mach 1 and capable of a range greater than 800 kilometers. The missile incorporates several technological improvements over existing systems, including enhanced stealth characteristics, GPS-corrected inertial navigation, and terminal-phase infrared homing with automatic target recognition capabilities.
The weapon features a dual-warhead penetrator design intended for engaging hardened targets, including underground facilities. Unlike the TAURUS system, which requires mission-time fueling, the Sky Dragon’s fuel system allows for extended storage periods of five to ten years without degradation, reducing maintenance requirements and improving operational readiness.
The missile’s modular fuel design enables deployment from multiple platforms with varying capability levels. When deployed from the FA-50, the system’s range is approximately 350 kilometers, while integration with the larger KF-21 platform enables the full 500-kilometer operational range through increased fuel capacity.
DAPA plans to transition testing to KF-21 Boramae prototypes beginning in 2027, when the fighter program reaches sufficient maturity to support weapons integration activities. This transition will enable final verification of the missile’s operational performance in its intended combat configuration.
The program’s multi-platform approach reflects South Korea’s broader strategy of developing adaptable weapons systems that can be deployed across its fighter fleet, enhancing operational flexibility and reducing logistical complexity.
The Sky Dragon program represents a significant step in South Korea’s defense industrial development, demonstrating the country’s growing capability to develop sophisticated weapons systems independently. The program builds on technology transfer agreements associated with the original TAURUS acquisition while incorporating indigenous innovations in stealth technology and guidance systems.
Beyond its immediate military applications, the program positions South Korea as a potential exporter of advanced weapons systems. The planned integration with the KF-21 fighter creates opportunities for package deals that could appeal to countries seeking to modernize their air forces with systems not subject to traditional export restrictions from major powers.
The missile’s development also supports South Korea’s broader strategic goal of reducing dependence on foreign weapons suppliers, particularly for systems critical to the country’s defense posture. The capability to strike targets at extended ranges with precision enhances deterrence options and provides military planners with additional operational flexibility.
The Sky Dragon addresses specific operational requirements for engaging high-value targets in the early phases of potential conflicts. Its penetration capabilities make it particularly suited for neutralizing command and control facilities, including those protected by underground construction. The missile’s stealth characteristics improve survivability in contested airspace, while its precision guidance systems minimize collateral damage risks.
DAPA officials indicated that a naval variant capable of anti-ship operations may be developed as a follow-on program, further leveraging the investment in the basic missile technology. Such a variant would provide the Korean Navy with enhanced long-range strike capabilities and contribute to the country’s broader maritime defense strategy.
Following the successful separation test, DAPA will continue flight testing using the modified FA-50 platform through 2026, conducting technical flight tests and development evaluations. The program will then progress to operational test and evaluation phases before receiving provisional combat suitability certification.
The transition to KF-21-based testing in 2027 will mark the beginning of final system validation, with operational performance verification expected to continue through the program’s completion in 2028. Production activities will commence following successful completion of all testing phases, with initial operational capability targeted for the early 2030s. South Korea has procured 260 TAURUS for the F-15k and plans are underway to eventually produce 400 Sky Dragon missiles to have a total of 600 long-range air-to-ground missiles on hand.