South Korean shipbuilder SK Oceanplant has successfully launched the second ship of the Chungnam-class (FFX Batch-III) for the ROK Navy, ROKS Gyeongbuk, at its Goseong shipyard.
DAPA Press Release translated by Naval News
On June 20, the Republic of Korea Navy and the Defense Acquisition Program Administration (DAPA) held a launching ceremony for ROKS Gyeongbuk (FFG-829), the second vessel of the FFX Batch-III program (Chungnam-class) at SK Oceanplant’s shipyard in Goseong.
ROKS Gyeongbuk is the second ship of the FFX Batch-III (Ulsan-class Batch-III) program (the first being ROKS Chungnam), built to replace the aging frigates (FF) and patrol combat corvettes (PCC) currently in service with the Republic of Korea Navy.
Designed and constructed domestically, ROKS Gyeongbuk was contracted in 2021, followed by keel-laying in 2023 and hull assembly in 2024, before being launched at today’s ceremony.
Commemorative photo during the launch ceremony (SK Oceanplant Photo)
Over 140 participants, including Chief of Naval Operations, Admiral Yong-mo Yang, Head of Current Capabilities Program Agency at DAPA, Geuk-cheol Bang, and SK Oceanplant CEO, Seung-chul Lee, attended the event, which included a progress report, naming, congratulatory remarks, and a traditional launching ceremony.
In keeping with naval tradition, Mrs. Hye-kyung Choi, the spouse of Chief of Naval Operations Admiral Yong-mo Yang, cut the ceremonial line attached to the ship. This act symbolizes cutting the umbilical cord of a newborn, signifying the vessel being given life. Following this, Admiral Yang and his spouse, along with other distinguished guests, took part in a safety blessing ceremony by cutting a multicolored ribbon and breaking a bottle of champagne against the hull.
The newly launched ROKS Gyeongbuk is a warship that embodies the Republic of Korea’s outstanding shipbuilding and defense technologies. Equipped with state-of-the-art combat systems, precision sensors, and powerful weaponry, all developed with our own hands, it will flawlessly carry out its mission of protecting our national interests and the lives of our people at sea. I look forward to Gyeongbuk fulfilling its role with confidence as a core asset of our regional fleet, safeguarding the waters of the Republic of Korea.
Admiral Yong-mo Yang, Chief of Naval Operations
ROKS Gyeongbuk, the Navy’s second 3,600-ton-class frigate, measures 129 meters in length, 14.8 meters in beam, and 38.9 meters in height. It is armed with a 5-inch naval gun, the Korean Vertical Launching System (KVLS), anti-ship missile defense interceptors (SAAM-400K, K-SAAM), ship-to-ship missiles (SSM-700K, C-Star), tactical land-attack missiles (SSM-750K, Sea Dragon ), and long-range anti-submarine torpedoes (K745A1, Red Shark K-ASROC).
ROKS Gyeongbuk is a warship that showcases the Republic of Korea’s advanced defense industry capabilities, as it is equipped entirely with domestically developed systems, including its combat management system, which serves as the ship’s “brain,” as well as its primary sensors and weapons.
Notably, ROKS Gyeongbuk is equipped with a domestically developed Multifunction Phased Array Radar (MFR). This four-sided fixed radar system enables 360-degree detection and tracking of both aerial and surface targets, and can simultaneously engage multiple air threats, similar to the Aegis destroyer’s fixed AN/SPY-1 radar. In contrast, previous Batch-I (Incheon-class) and Batch-II (Daegu-class) frigates use separate rotating search radars and tracking radars.
In addition, ROKS Gyeongbuk features an Integrated Sensor Mast (ISM) that incorporates advanced scientific and technological elements. The ISM houses a four-sided fixed multifunction phased array radar and an infrared search and track (IRST) system, all within a stealth-designed structure.
ROKS Gyeongbuk adopts the same hybrid propulsion system used in the Batch-II (Daegu-class) frigates, which minimizes underwater radiated noise. It is also equipped with a hull-mounted sonar (HMS) and a towed array sonar system (TASS), both developed with domestic technology, providing the ship with excellent anti-submarine warfare (ASW) capabilities.
In line with the Navy’s naming convention of using the names of metropolitan cities and provinces for frigates, a naming committee was convened in November 2024, officially designating the second ship of the Ulsan-class Batch-III as ROKS Gyeongbuk.
The name Gyeongbuk was first used for PG-85, a patrol gunboat originally acquired from the U.S. Navy and commissioned into the ROK Navy in 1967. The second ship to carry the name was FF-956, a domestically built frigate commissioned in 1986. This second ROKS Gyeongbuk (FF-956) served as a key combat vessel of the Republic of Korea Navy for 34 years before being honorably decommissioned in 2019. Notably, during a 1988 training cruise, ROKS Gyeongbuk (FF-956) and ROKS Masan (FF-955) became the first domestically built Korean frigates to cross the Pacific Ocean, marking a milestone in the Navy’s blue-water operational capability.
ROKS Gyeongbuk is a state-of-the-art frigate equipped with a domestically developed multifunction phased array radar based on cutting-edge Korean technology. Its successful construction at a new shipyard marks a significant step in advancing both the nation’s shipbuilding capabilities and the foundation of its defense industry.
Geuk-cheol Bang, Head of Current Capabilities Program Agency at DAPA
ROKS Gyeongbuk will undergo a period of testing and evaluation before being delivered to the Navy in June 2026, after which it will go through a force integration process and be deployed for operational service.