Ratanakosin-class corvette

The Ratanakosin-class corvettes (Thai: รัตนโกสินทร์) are a class of two corvettes that were built for the Royal Thai Navy in the 1980s. Constructed by Tacoma Boatbuilding Company in the United States, a third was planned to be built in Thailand but was canceled before construction could begin. The Ratanakosin class is used as flagships for squadrons of fast attack craft.
One of the two, Sukhothai, sank in a storm on 18 December 2022.