HSwMS Gotland (Gtd)
HSwMS Gotland
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| History | |
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 Sweden
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| Name: | Gotland |
| Namesake: | Swedish island Gotland |
| Builder: | Kockums |
| Laid down: | 10 October 1992 |
| Launched: | 2 February 1995 |
| Commissioned: | April 1996 |
| Homeport: | Karlskrona, Sweden |
| Motto: |
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| Status: | in active service |
| Badge: |  |
| General characteristics | |
| Class and type: | Gotland-class submarine |
| Displacement: | 1,380 tons standard, 1,599 tons submerged |
| Length: | 60.4 metres (198 feet 2 inches) |
| Beam: | 6.2 metres (20 feet 4 inches) |
| Draught: | 5.6 metres (18 feet 4 inches) |
| Propulsion: | two diesel engines (1,300 bhp (970 kW) each), two Stirling engines (75 kW (101 hp) each), one electric motor (1,800 shp (1,300 kW)), one shaft |
| Speed: | 11 knots (20 km/h; 13 mph) surfaced, 20 knots (37 km/h; 23 mph) submerged |
| Endurance: | over 14 days submerged without snorkeling |
| Test depth: | 500 ft (150 m) |
| Complement: | 18-22 officers, 6-10 enlisted |
| Armament: |
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HSwMS Gotland (Gtd) is an attack submarine of the Swedish Navy. It was the first ship of the Gotland-class, which was the first operational submarine class in the world to use air-independent propulsion in the form of Stirling engines which use liquid oxygen and diesel as the propellant.
It was built by Kockums, launched in 1995, and subsequently commissioned in 1996.
In 2015, Sweden's Defense Material Administration (FMV) signed a contract with Saab Kockums which included a mid-life upgrade of two members of the Gotland class, Gotland and Halland, for SEK 2.1 million. Gotland is expected to return to the FMV in late 2018 following a series of platform and combat systems upgrades.
The submarine Gotland was designed and built by Kockums in Malmö and launched on 2 February 1995. The honor guard during the launching consisted of the amphibian company of the Fårösund Marine Brigade (FMB). Participants from Gotland included the Governor, the Municipal Council chairman, the commander of the Gotland Military Command and the commander of FMB.
The submarine is essentially based on the Västergötland-class submarine, but with a lot of improvements. It has two diesel engines and two Stirling engines which gives air independence and doubled endurance compared with previous submarine types. A gas cycle drives a generator that charges the submarines battery which is connected to the propeller engine. For passive reconnaissance, she is equipped with circular sonar and flank array sonar.
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