Thetis-class ocean patrol vessel (Stanflex 3000)

Thetis-class ocean patrol vessel (Stanflex 3000) 0Thetis-class ocean patrol vessel (Stanflex 3000) 1Thetis-class ocean patrol vessel (Stanflex 3000) 2Thetis-class ocean patrol vessel (Stanflex 3000) 3Thetis-class ocean patrol vessel (Stanflex 3000) 4Thetis-class ocean patrol vessel (Stanflex 3000) 5

Basic information

Country of build:
In service:
1991 – present (32 years)

Ship measurements

3,500 t
112.3 m
14.4 m


Propulsion system:
  • 3 * MAN B&W 12v28/32A-D at 2,940 kW (3,943 hp) diesel engines
  • 3 * Detroit GM 16V 7163-7305 at 480 kW (640 hp) diesel-generators
  • 1 * Detroit 6L-71N 1063-7005 at 120 kW (160 hp) (EMG) diesel-generator
  • 1 * shaft
  • 1 * Brunvoll azimuth thruster (800 kW)
  • 1 * electrical Brunvoll bow thruster (600 kW)
21.8 knots
8,700 nmi at 15 kn



Combat assets

  • 1 * Terma Scanter Mil 009 navigational radar
  • 1 * Furuno FR-1505 DA surface search radar
  • 1 * Terma SCANTER 4103 air & surface search radar
  • 1 * SaabTech Vectronics 9LV 200 Mk 3 fire control system
  • 1 * SaabTech CTS-36 hull-mounted sonar
  • FLIR Systems AN/AAQ-22 SAFIRE thermal imager
  • 1 * 76 mm/62 cal. OTO Melara Super Rapid DP gun
  • 2 * 12.7 mm heavy machine guns
  • 2 * 7.62 mm light machine guns
  • 1 * Sikorsky MH-60R helicopter

The Thetis-class ocean patrol vessels or ocean patrol frigates, also called Stanflex 3000, is a class of large patrol vessels built for the Royal Danish Navy. The class comprises four ships, all built and commissioned in the early 1990s. The ships' tasks are mainly maintenance of sovereignty, search and rescue, fishery inspection and support to local (mainly Greenlandic) authorities. The operation areas are normally Greenland and the Faroe Islands, but the vessels also operate near Iceland on transit between Greenland and the Faroe Islands, and near Denmark.

The ships each have double-skinned ice-reinforced hulls so that the ships can break through 80 centimetres (31 in) of solid ice. Thetis has undergone a conversion, first to participate in the CANUMAS-project, and later to become the fleet's flagship, a role that ended in September 2007. Thetis is fitted with Terma C-Flex Combat Management System. The Danish Navy has retrofitted the vessels with 12.7-millimetre (0.50 in) heavy machine guns, Stinger launchers and decoy launching systems. The ships can carry and use multiple StanFlex mission modules.

In the most common role (ocean patrol), the standard base crew is 47 persons and 16 conscripts, but in either command ship role or more warfare heavy roles, the base crew is expanded to 60 persons plus 4 aircrews for the Westland Lynx Mk.90B and one or two doctors. Accommodation is available for 101 personnel in all.


No comments yet