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Patrol & mine warfare vessels1996–present
Minesweeper
Alta-class minesweeper is a minesweeper. It was built by Kværner Mandal , Mandal, Norway. Reported operators include Royal Norwegian Navy.
NorwayAlta class
Kværner Mandal , Mandal, Norway
Royal Norwegian Navy
1996–present
5
3
1
1
Minesweeper
375 tonnes
55.2 metres
13.6 metres
21 metres
2.5 metres
2 × 2.7 MW (3,621 hp) MTU 12V 396 TE84 diesel engines 2 × Kværner water jets
30 knots (56 km/h; 35 mph)
1,500 mi (2,400 km)
32
Oropesa mechanical sweep Kongsberg Defence & Aerospace (KDA) Agate (Air Gun and Transducer Equipment) acoustic minesweeping system Elma magnetic sweepers
1 × Sadral surface-to-air missile system 1 or 2 × Rheinmetall 20 mm AA guns 2 × 12.7 mm machine guns
Norway 0 references
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
True scale
Sourced dimensions beside a 1.75 m human reference.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 29 Sept 2026 | 55.2 m | Wikipedia contributors | superseded |
| 29 Sept 2026 | 55.2 m | Wikipedia contributors | superseded |
| 29 Sept 2026 | 55.2 m | Wikipedia contributors | superseded |
| 29 Sept 2026 | 55.2 m | Wikipedia contributors | approved |
Alta-class minesweeper equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
NorwayReported count for Alta class. Service scope: Navy; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Excludes retired/reserve/on-order rows. Count column(s): in service: 2. Origin: Norway. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.