South Korea's HJ Shipbuilding and Construction has delivered a new high-speed patrol craft ordered by the Republic of Korea Navy (ROKN).
The future ROKS Chamsuri-231 belongs to the Gumdoksuri-class patrol killer medium rocket vessels (PKMRs), which are upgraded variants of the ROKN's Yoon Youngha-class patrol boats.
The PKMRs will be employed primarily as quick reaction platforms along the Northern Limit Line, the de facto maritime boundary between North and South Korea in the Yellow Sea.
The future Chamsuri-231 has a length of 44 metres, a beam of seven metres, and a combined diesel and gas propulsion arrangement that will deliver a top speed of 40 knots. Her armament includes a 76mm naval gun, 12.7mm machine guns fitted on remotely controlled weapon stations, and 130mm guided rockets.
The vessel is also fitted with electronic warfare systems, air surveillance radars, and electro-optical tracking systems. De-icing equipment will also be installed to permit operation during winter.
Three other Gumdoksuri-class PKMRs are scheduled for delivery to the ROKN in the second half of 2026.
