| 词条 | Alta-class minesweeper | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 |
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 {{sclass-|Oksøy|mine hunter|4}}. DesignThe 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.[3] 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.{{citation needed|date=March 2015}} Ships
Service historyOrkla was destroyed by fire on 19 November 2002.[5] Glomma is no longer in active service.{{citation needed|date=March 2015}} References1. ^{{Cite web |url= http://www.naval-technology.com/projects/oksoy/ |title=Oksoy and Alta Class Minesweepers and Minehunters - Naval Technology |work=naval-technology.com |accessdate=2 March 2010| archiveurl= https://web.archive.org/web/20100317183207/http://www.naval-technology.com/projects/oksoy/| archivedate= 17 March 2010 | deadurl= no}} 2. ^https://forsvaret.no/en/facts/equipment/oksoy-class-and-alta-class 3. ^{{cite web |url=http://www.navyrecognition.com/index.php/news/defence-news/year-2013-news/september-2013-navy-world-naval-forces-maritime-industry-technology-news/1253-kongsberg-to-supply-minesniper-mk-iii-mine-disposal-weapon-system-to-royal-norwegian-navy-.html |title=Kongsberg to Supply MINESNIPER Mk III Mine Disposal Weapon System to Royal Norwegian Navy |date=September 20, 2013}} 4. ^{{cite book|title=Jane's Fighting Ships, 2004-2005 |publisher=Jane's Information Group |isbn=0710626231 |editor=Stephen Saunders |location=London |pages=517 |date=2004}} 5. ^1 {{cite news |author= |title="Orkla" har kantret |url=http://www.ba.no/nyheter/article287927.ece |newspaper=Bergensavisen |location= |date=26 January 2003 |access-date=29 March 2015 |language=Norwegian }} External links
3 : Mine warfare vessel classes|Minesweepers of the Royal Norwegian Navy|Active minesweepers of Norway |
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