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Norwegian Alta-class minesweeper Rauma (M352)
|Builders:||Kværner Mandal, Mandal, Norway|
|Operators:||Royal Norwegian Navy|
|General characteristics |
|Speed:||30 knots (56 km/h; 35 mph)|
|Range:||1,500 mi (2,400 km)|
|Sensors and |
The Alta class was built by Kværner Mandal during 1996 and 1997, while the related Oksøy class was built in 1994 and 1995. A total of 9 vessels were built, 5 minesweepers and 4 minehunters. The catamaran hull is built in a fibre-reinforced plastic sandwich of very low magnetic signature.
Two large fans located on each side create an air cushion between the two hulls and a front and aft rubber skirt, lifting the vessel, giving small drag and a high cruise speed, as well as low susceptibility to the shock of exploding mines since only a small portion of the hull is actually exposed in the water. Propulsion by water jet, again one in each hull, gives a low acoustic signature. A degaussing system gives the vessels extremely low electromagnetic signature.
|M350||Alta||Kværner, Mandal||12 January 1996|
|M351||Otra||8 November 1996|
|M352||Rauma||2 December 1996|
|M353||Orkla||Destroyed by fire on 19 November 2002|
|M354||Glomma||1 July 1997||Sold 2009|
Orkla was destroyed by fire on 19 November 2002. Glomma is no longer in active service.
- "Oksoy and Alta Class Minesweepers and Minehunters - Naval Technology". naval-technology.com. Archived from the original on 17 March 2010. Retrieved 2 March 2010.
- "Kongsberg to Supply MINESNIPER Mk III Mine Disposal Weapon System to Royal Norwegian Navy". September 20, 2013.
- Stephen Saunders, ed. (2004). Jane's Fighting Ships, 2004-2005. London: Jane's Information Group. p. 517. ISBN 0710626231.
- ""Orkla" har kantret". Bergensavisen (in Norwegian). 26 January 2003. Retrieved 29 March 2015.
- "Sold warships". nettavisen.no. Retrieved 15 March 2020.
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