HNoMS Tyr (N50)

HNoMS Tyr is a mine control vessel used for underwater search and recovery by the Royal Norwegian Navy.

History
Tyr was built at Voldnes Skipsverft in 1981 and was used as an offshore standby-ship in the North Sea under the name MS Sandby Master. The Royal Norwegian Navy took her over in 1993, and Tyr went through a comprehensive rebuilding and modernization program between 1994 and February, 1995 at the Mjellem & Karlsen shipyard in Bergen. Under the rebuilding Tyr was equipped with new thrusters, the bridge was expanded and a mine hangar was built on the aft-deck, and new hydraulic equipment was installed on the work-deck. Tyr was fitted with tactical systems, and was equipped with an Scorpio 21 ROV. The furnishings were also modernized.

Wreck discoveries and recoveries
HNoMS Tyr has discovered and/or recovered several wrecks:


 * Localization and filming of the German battleship Scharnhorst in cooperation with the Norwegian Broadcasting Corporation.
 * Localization and filming of the German U-boat U-864, sunk west of Fedje in 1945.
 * Localization and filming of the German U-boat U-735, sunk near Horten in the Second World War.
 * Localization and filming of the Polish troop-transport ship Chrobry, sunk in the Vestfjorden in 1940.
 * Localization and filming of the Norwegian costal express ship SS Prinsesse Ragnhild, sunk off Bodø on 23 October 1940.
 * Localization and filming of the Royal Navy destroyer Hunter sunk on 10 April 1940 during the Battles of Narvik
 * Localization of the German prisoner transport ship Palatia, sunk in the Second World War. This is the second largest ship disaster in Norwegian history.
 * Relocalization of the Norwegian submarine Uredd, sunk on 24 February 1943 after hitting a German minefield.
 * Localization and recovery of a Norwegian F-16 fighter jet, which had crashed in Bindalsfjorden, May 1997.
 * Localization and recovery of a Norwegian F-16 fighter jet, which had crashed in the sea off Landegode, Bodø.
 * Search localization of assumed deceased, after the Sleipner disaster.
 * Search and recovery of both helicopter and the deceased after a helicopter crashed in the Førdefjorden in October 1996.