Alta-class minesweeper
 Norwegian Alta-class minesweeper Rauma (M352) | |
| Class overview | |
|---|---|
| Name: | Alta class |
| Builders: | Kværner Mandal, Mandal, Norway |
| Operators: |
 Royal Norwegian Navy |
| In commission: | 1996–present |
| Completed: | 5 |
| Active: | 2 |
| Lost: | 1 |
| Retired: | 1 |
| General characteristics [1] | |
| Type: | Minesweeper |
| 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) |
| Sensors and processing systems: | 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 is a ship class of minesweepers operated by the Royal Norwegian Navy. An almost identical class of minehunters is known as the Oksøy class.
Design
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.[2]
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.
Ships
| Alta class[3] | ||||
| Number | Name | Builder | Commissioned | Status |
|---|---|---|---|---|
| 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[4] | ||
| M354 | Glomma | 1 July 1997 | ||
Service history
Orkla was destroyed by fire on 19 November 2002.[4] Glomma is no longer in active service.
References
- ↑ "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.
- ↑ 4.0 4.1 "«Orkla» har kantret". Bergensavisen (in Norwegian). 26 January 2003. Retrieved 29 March 2015.
External links
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