ROKS Cheonan (FFG-826)
ROKS Cheonan (FFG-826) is the seventh ship of the Daegu-class frigate in the Republic of Korea Navy.Modifications to the Incheon class include a TB-250K towed array sonar system and a 16-cell Korean Vertical Launching System (K-VLS) that is able to deploy the K-SAAM, Hong Sang Eo anti-submarine missile, and Haeryong tactical land attack cruise missiles.However, as a part of weapon system modifications, the superstructure has been significantly changed.[2][3] Cheonan was built by Hyundai Heavy Industries at its Ulsan shipyard and launched on 9 November 2021.[4] On 22 January 2024, Commander Park Yeon-soo, who had served as the operations officer on ROKS Cheonan (PCC-772) when it was sunk by a North Korean torpedo on 26 March 2010, took command of the new Cheonan.