---

Ratanakosin class corvettes are a class of two ships that were built for the Royal Thai Navy in the 1980s. Both ships remain in service
HTMS Ratanakosin (441)
HTMS Sukhothai (442)

Royal Thai Navy
HTMS Ratanakosin (441)
HTMS Sukhothai (442)
Type: Corvette
Displacement: 840 tons (normal)
960 tons (full load)
Length: 76.82 m (252 ft 0 in)
Beam: 9.55 m (31 ft 4 in)
Draft: 2.44 m (8 ft 0 in)
Installed power: 16,000 bhp (12,000 kW)
Propulsion: 2× MTU 20V1163 TB83 diesel engines,
2× shafts
Speed: 26 knots (48 km/h; 30 mph)
Range: 3,000 nmi (5,600 km) (at 16 kn (30 km/h; 18 mph))
Complement: 15 officers, 72 enlisted
Sensors and processing systems: 1× Decca 1226 surface search radar
1× HSA ZW-06 surface search radar
1× HSA DA-05 air/surface search radar
1× HSA WM-25 fire control radar
1× HSA LIROD-8 optical fire control system
STN Atlas DSQS-21C hull mounted sonar
Armament:
Missiles
8× RGM-84 Harpoon SSM (2 quad) launchers
1× octuple Albatros SAM launcher (24 Selenia Aspide missiles)
Guns
1× Otobreda 76 mm (3 in) gun
2× Bofors 40 mm ( 1 twin Otobreda mount)
2× 20 mm Oerlikon GAM-B01 cannon
Torpedos
2× Mark 32 triple torpedo tubes (Sting Ray torpedos