T.991-class patrol boat

Class overview
Builders	Marson Shipbuilding Mahidol Adulyadej Naval Dockyard
Operators	Royal Thai Navy
Planned	3
Completed	3
General characteristics
Type	Patrol boat
Displacement	170 tons, 186 tons (full load) (est)
Length	38.7m (est)
Beam	6.49m (est)
Draught	3.8m (est)
Propulsion	2 x MTU 16V 4000 R41 R, 2 x diesel generators 140 kW
Speed	Maximum: 27 knots
Range	At cruising speed knots: 1,500Nm
Complement	29
Sensors and processing systems	Combat System: Navigation: S G Brown Mk 31 Attitude and Heading Reference Systems (AHRS) Fire Control: Thales MIRADOR
Armament	2 × MSI-DSL 30mm DS-30M , 2 x 12.7mm

The Tor 991 is a class of patrol boats designed and built in Thailand. The design of the patrol boat was initiated by King Bhumibol in 2003. The first vessel, T.991 was launched on April 30, 2007.