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Tuesday, 17 October 2017

Baltic warships: Part 1c: The Thetis-class frigates

The Thetis-class frigates were designed to perform ocean patrol duties including maintenance of sovereignty, search and rescue, fishery protection, and support to local authorities in Denmark's overseas territories.

There are four ships in the class, KDM Thetis, KDM Triton, KDM Vædderen, and KDM Hvidbjørnen.


The design's characteristics are:
  • Displacement: 3,500 tons
  • Dimensions:
    • Length: 112.5m
    • Beam: 14.4m
    • Draft: 6.0m
  • Propulsion: 3 x MAN Burmeister & Wain 12V 28/32 Diesel engines driving a single constant pitch propeller, retractable azimuth thruster (capable of up to 8 knots), bow thruster
  • Speed: 21.8 knots
  • Range: 8,700 nautical miles
  • Complement: 47 to 60 depending upon the role the ship is carrying out
  • Armament: 1 x 76mm OTO Melara Super Rapid Gun; 7 x 12.7mm heavy machine guns; 4 x 7.62mm light machine guns; 1 x depth charge rack; MU90 Advanced Lightweight Anti-submarine Torpedo (Additional possible armament upgrades included in the original plans included 2 x 8-cell vertical launch Sea Sparrow surface-to-air missiles; 8 x Harpoon missiles; 2 x point-defence surface-to-air missile launchers)
  • Aircraft carried: 1 x Westland Lynx Mk.90B helicopter (as required)
  • Electronic systems and sensors: SaabTech Vectronics 9LV 200 Mk 3 fire control system; SaabTech CTS-36 hull-mounted sonar; Thales TMS 2640 Salmon variable depth sonar; FLIR Systems AN/AAQ-22 SAFIRE thermal imager; Terma Scanter Mil 009 navigational radar; Furuno FR-1505 DA surface search radar; Plessey AWS-6 air search radar
  • Electronic warfare and decoys: Thales Defense Ltd Cutlass radar warning receiver; Thales Defense Scorpion radar jammer, Sea Gnat chaff and flare launchers

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