The Republic of Korea Navy has accepted a new Chamsuri-II-class vessel as part of the Batch-II cluster under Seoul’s Geomdoksuri Patrol Killer Experimental-B program.
The Republic of Korea Navy has accepted a new Chamsuri-II-class vessel as part of the Batch-II cluster under Seoul’s Geomdoksuri Patrol Killer Experimental-B (PKX-B) program.
The milestone supports the long-term initiative, also called the “Golden Eagle,” which is designed to replace the military’s older Chamsuri-class patrol boats introduced in the 1970s.
Following its handover, the craft will undergo operational integration before deployment to defend the Northern Limit Line, the de facto maritime border with North Korea in the Yellow Sea.
"The first Golden Eagle-B Batch-II vessel is equipped with overwhelming on-site response capabilities that would prevent the enemy from daring to provoke," said Choi Sang-deok, head of the Naval Ship Program Department at the Defense Acquisition Program Administration (DAPA).
“Based on proven domestic technology, we will complete the construction and delivery of subsequent vessels without any setbacks to establish an ironclad coastal readiness posture in the waters of the Northern Limit Line at the front line.”
DAPA plans to deliver three additional PKX-B Batch-II platforms to the navy by the end of 2026, as revealed at a December 2025 launch ceremony.
The PKX-B Batch-II
The PKX-B Batch-II design features upgraded electronic warfare systems, enhanced anti-jamming capabilities, and direct combat system integration for its 130mm guided rockets and 12.7mm remote weapon stations.
It also incorporates operational improvements, including tripling the heater output on its electro-optical tracking system to prevent freezing in low-temperature conditions and raising the helm station for enhanced forward visibility.
The craft carries a crew of up to 23 sailors and uses waterjet propulsion for speeds up to 40 knots (74 kilometers/46 miles per hour).
The fast-intercept PKX-B shares its digital battle network with the Batch-I Chamsuri-IIs and the larger PKX-A heavy strike patrol ships built under the broader Geomdoksuri effort.
