YMS 501-tile
Between 1947 and 1950, the backbone of the nascent ROKN was 17 136-foot wooden-hulled coastal minesweepers transferred from the U.S. Navy. The first two are seen here, Geumgangsan (MSC 501) ex-YMS354; and Gyeongju (MSC-502) ex-YMS358. Of the 17 transferred, two defected to the DPRK in the late 1940s, two were lost at sea, and two were lost to mines in 1950. Those left would remain in service into the 1970s.