Thor-class

The Thor class offshore patrol vessel was developed for the Icelandic Coast Guard in Iceland to replace the aging vessel ICGV Óðinn. The Icelandic government approved the acquisition program on 4 March 2005 following a proposal by the Minister of Justice and Ecclesiastical Affairs, Björn Bjarnason. After a needs analysis in late 2005, the State Trading Centre managed a competitive bidding process that attracted 15 bids from 12 countries. The Chilean shipbuilding corporation ASMAR secured the contract, which was signed on 20 December 2006. Construction of the vessel began at the ASMAR Naval Shipyard in Talcahuano, Chile, on 16 October 2007, and the vessel was launched on 29 April 2009.

While under construction, the vessel was delayed by more than a year due to the 2010 Chilean earthquake and subsequent tsunami. The vessel sustained minimal structural damage, underwent repairs in dry dock, and was delivered to Icelandic Coast Guard personnel on 23 September 2011.

Designed by Rolls-Royce plc, the Thor class is based on the UT 512 design used for the Norwegian Coast Guard vessel Harstad, but built to the larger UT 512L standard. Propulsion is provided by two Rolls-Royce Marine Bergen diesel engines driving two Rolls-Royce Marine KaMeWa Ulstein feathering propellers. The propulsion system also incorporates two bow tunnel thrusters, an aft tunnel thruster, and a retractable azimuth thruster. The ship is equipped with a 300-square-meter cargo deck, oil booms, and oil skimmers for pollution control. For search and rescue operations, the vessel carries two MOB boats and six Viking life rafts. Sensor systems include one S-band radar, two X-band radars, and a synthetic aperture sonar. The vessel's armament consists of a 40 mm Bofors gun and two 12.7 mm machine guns. Aviation capabilities include helicopter in-flight refueling facilities and the capacity to operate a Schiebel Camcopter S-100 unmanned rotary-wing surveillance vehicle.

The Thor class arrived in Reykjavík on 27 October 2011 after a transit voyage from Chile that included a stop in Halifax, Nova Scotia. The vessel's primary duties are Exclusive Economic Zone patrol, fishery inspection, and search and rescue support. On 11 June 2015, the ship was rammed and damaged by the vessel Kruzenshtern while in port at Reykjavík. The vessel later participated in Operation Tugaalik on 24 June 2024.