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Norwegian Alta-class minesweeper Rauma (M352)
|Builders:||Kværner Mandal, Mandal, Norway|
|Operators:||Royal Norwegian Navy|
|General characteristics |
|Propulsion:||2 × 2.7 MW (3,621 hp) MTU 12V 396 TE84 diesel engines
2 × Kværner water jets
|Speed:||Over 20 knots (37 km/h; 23 mph)|
|Range:||1,500 mi (2,400 km)|
|Oropesa mechanical sweep
Kongsberg Defence & Aerospace (KDA) Agate (Air Gun and Transducer Equipment) acoustic minesweeping system
Elma magnetic sweepers
|Armament:||1 × Sadral surface-to-air missile system
1 or 2 × Rheinmetall 20 mm AA guns
2 × 12.7 mm machine guns
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|
- "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.
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