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 SEP 2007. 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 aircrew for the Westland Lynx Mk.90B and one or two doctors. Accommodation is available for 101 personnel in all.
| Thetis-class ocean patrol vessels | |
|---|---|
| Type: | Ocean patrol vessel |
| Displacement: | 3,500 tons full load |
| Length: | 112.3 m (368 ft 5 in) |
| Beam: | 14.4 m (47 ft 3 in) |
| Height: | 37.0 m (121 ft 5 in) |
| Draft: | 6.0 m (19 ft 8 in) |
| Installed power: | 3 x Detroit Diesel GM 16V 7163-7305 à 460 1 x Detroit Diesel 6L-71N 1063-7005 à 120 Kw (EMG) |
| Propulsion: | 3 x MAN B&W Diesel 12v28/32A-D à 2940 kW (3990 hk), single shaft 1 x Brunvoll azimuth thruster (800 kW) 1 x electrical Brunvoll bow thruster (600 kW) |
| Speed: | 21.8 kn (40.4 km/h) |
| Range: | 8.700 nmi (16.112 km) at 15 kn (28 km/h) |
| Endurance: | 60 days |
| Boats and landing craft carried: | 2 x 7 m (23 ft) RHIBs |
| Complement: | 47-60 depending on role + aircrew etc. |
| Sensors and processing systems: | 1 x Terma Scanter Mil 009 navigational radar 1 x Furuno FR-1505 DA surface search radar 1 x Plessey AWS-6 air search radar 1 x SaabTech Vectronics 9LV 200 Mk 3 fire control system 1 x SaabTech CTS-36 hull-mounted sonar Thales TMS 2640 Salmon variable depth sonar FLIR Systems AN/AAQ-22 SAFIRE thermal imager |
| Electronic warfare and decoys: | 1 x Thales Defense Ltd Cutlass radar warning receiver 1 x Thales Defense Scorpion radar jammer 2 x Sea Gnat launchers (for chaff and flares) |
| Armament: | 1 x 76-mm 62-cal. OTO Melara Super Rapid DP 7 x 12.7 mm heavy machine guns 4 x 7.62 mm light machine guns 1 x depth charge rack and MU90 Advanced Lightweight Torpedo for anti-submarine warfare |
| Aircraft carried: | 1 x Westland Lynx Mk.90B helicopter |
| Aviation facilities: | Aft helicopter deck and hangar |
