Daegu-class (FFX-II / FFG-II)

The Daegu-class guided missile frigate, designated as the FFX-II or FFG-II, represents an evolution of the preceding Incheon-class design. Developed as part of a broader modernization effort to field a fleet of approximately 20 to 22 frigates for the Republic of Korea Navy, this class serves as a direct successor to the Batch I vessels. The program transitioned into active service in 2018, bridging the operational gap between earlier coastal defense platforms and the subsequent Chungnam-class.

This platform is a multi-role combatant with a primary emphasis on enhanced anti-submarine warfare and land-attack capabilities. The hull design utilizes the Incheon-class foundation but incorporates a modified superstructure to accommodate a 16-cell Korean Vertical Launching System (K-VLS). This system enables the deployment of surface-to-air missiles, anti-submarine rockets, and tactical land-attack cruise missiles. For surface engagements, the vessel is equipped with a 5-inch naval gun and dedicated anti-ship missile launchers, while point defense is managed by a close-in weapon system and torpedo acoustic countermeasures. The propulsion architecture marks a shift to a combined diesel-electric or gas (CODLOG) configuration, utilizing a single gas turbine alongside diesel generators and electric motors. The class features significant improvements in detection, employing both hull-mounted and towed array sonar systems, alongside 3D air search radar and infrared search and track systems. Aviation facilities include an enlarged hangar and stern flight deck capable of operating medium-lift helicopters.

The Republic of Korea Navy currently operates a full complement of eight commissioned vessels within this class. These ships are integrated into active naval operations, providing a persistent presence in regional waters. Beyond domestic use, the design has been selected for export; a contract signed in 2024 facilitates the construction of a variant for the Peruvian Navy. These export units are slated for production at a local shipyard with a projected delivery date in 2030.