HNoMS Valkyrien has the pennant number

Pennant number

In the modern Royal Navy, and other navies of Europe and the Commonwealth, ships are identified by pennant numbers...

 A535 and is the present support vessel for the Royal Norwegian Navy

Royal Norwegian Navy

The Royal Norwegian Navy is the branch of the Norwegian Defence Force responsible for naval operations. , the RNoN consists of approximately 3,700 personnel and 70 vessels, including 5 heavy frigates, 6 submarines, 14 patrol boats, 4 minesweepers, 4 minehunters, 1 mine detection vessel, 4 support...

 Coastal Combat Flotilla. Valkyrien was built as a civilian supply vessel in 1981. She was bought by the RNoN in 1994. Command was assumed on 4 February 1994. The ship has a strengthened hull

Hull (watercraft)

A hull is the watertight body of a ship or boat. Above the hull is the superstructure and/or deckhouse, where present. The line where the hull meets the water surface is called the waterline.The structure of the hull varies depending on the vessel type...

 and meets the requirements of ice breaking class ICE C. The vessel has a displacement of 3,000 tons

Tonnage

Tonnage is a measure of the size or cargo carrying capacity of a ship. The term derives from the taxation paid on tuns or casks of wine, and was later used in reference to the weight of a ship's cargo; however, in modern maritime usage, "tonnage" specifically refers to a calculation of the volume...

and a top speed of 16.5 knots (32.3 km/h). The ship also had towing and anchor handling capacities. As a civilian ship she had a crew of 11. Today she has a crew of about 20-25.