 | This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Stockholm-class corvette" – news ·newspapers ·books ·scholar ·JSTOR(January 2013) (Learn how and when to remove this message) |
 HSwMSStockholm in Kalmar | |
| Class overview | |
|---|---|
| Builders | Karlskronavarvet AB |
| Operators |  Swedish Navy |
| Succeeded by | Göteborg class |
| In commission | 22 August 1984 |
| Planned | 2 |
| Completed | 2 |
| Active | 2 |
| General characteristics | |
| Type | Corvette |
| Displacement | 380 t (370long tons) |
| Length | 50 m (164 ft 1 in) |
| Beam | 7.5 m (24 ft 7 in) |
| Draught | 2.6 m (8 ft 6 in) |
| Propulsion | |
| Speed | 30knots (56 km/h; 35 mph) |
| Complement | 40 |
| Sensors and processing systems |
|
| Electronic warfare & decoys | RheinmetallTKWA/MASS (Multi Ammunition Softkill System) |
| Armament | |
TheStockholm class is a pair of warships of theSwedish Navy. Built ascorvettes inKarlskrona 1984–1985, they are armed with fourRBS15 anti-ship missiles, one 57 mm cannon and severalmachine guns. In 2017 the two units in the class were rebuilt and are now serving aspatrol boats. The option to carry anti-ship missiles does however remain.
TheStockholm class started as a study for a ship with increased endurance, a project calledYtattack-81 (Surface combatant-81), which was built on the torpedo boats of theSpica andSpica II classes, but with an increaseddisplacement from 230 to 350tonnes (230 to 340long tons). The engine was to be aCODAG-concept, twodiesels and onegas turbine. However, the class looked to become just another desktop project.
In the early 1980s, a series of submarine incidents occurred within Swedishterritorial waters, the most famous of which wasU 137 which ran aground outside Karlskrona in 1981. These incidents showed that the Swedish Navy was seriously lacking in itsanti-submarine (ASW) capacity. Specifically, it needed new hulls designed for anti-submarine warfare, and it needed them fast. The decision was to use theYtattack-81 project and modify it for ASW operations, as designing a completely new ship is a time-consuming and costly task. It was given atowed array sonar, ASWtorpedoes and theELMA anti-submarine mortar system. HSwMSStockholm was launched on 22 August 1984 closely followed by HSwMSMalmö on 23 March 1985, both ships entered service on 1 May 1986.
In the middle of the 1990s, the ships started to show their age, mainly because of their high mileage and the latest few year's explosive development of electronics. TheStockholm class was a successful design and the ships' basic status was good despite a hard life so the Swedish Defence Administration decided to give the ships a second life.Malmö was the first to be modernised in 1999 withStockholm following in 2000. The modernisation included new engines,[1] combat control systems, fire control systems,SIGINT and navigational systems. The ships both went through extensive modification of the mast, hull and superstructure to reduce theirradar cross-section. Much of the modification was also made with low maintenance in mind to minimise the need for expensive repairs in the future. The guiding principle for the project was to update as many of the systems as possible to the same level as theVisby-class corvettes. Both ships are back in operational condition now, attached to the 31st Corvette Division of the3rd Naval Warfare Flotilla.
In early 2009 the Swedish government decided that the two ships in the class were to join the EU-led taskforce outsideSomalia, where it would fightpiracy.[2] In May 2009 the ships started their first patrol off the Somali coast. On 26 May,Malmö responded to a pirate attack on the Greek shipMV Antonis. The corvette fired warning shots with its 57 mm cannon and arrested seven pirates.[3][4]
In 2015, Saab was awarded a contract to overhaul theStockholm-class corvettes[5] and the ships were redesignated as patrol boats. The ships retained most of their weaponry and continued to be stationed at theKarlskrona naval base.[6]
The crew complement was reduced so not all weapon and sensor stations can be manned simultaneously, instead they will get two crews so the ships can stay at sea for more days of the year.
| Bow number | Ship name | Laid down | Launched | Commissioned | Service | Status |
|---|---|---|---|---|---|---|
| K11, later P11 | Stockholm | 1 August 1982 | 22 August 1984 | 1 May 1986 | 3rd Naval Warfare Flotilla | Modernised 2000, Active |
| K12, later P12 | Malmö | 14 March 1983 | 23 March 1985 | 1 May 1986 | 3rd Naval Warfare Flotilla | Modernised 1999, Active |
Active ships of theSwedish Navy | ||||||||
|---|---|---|---|---|---|---|---|---|
| Corvettes |
|  | ||||||
| Submarines |
| |||||||
| Mine countermeasures vessels |
| |||||||
| Auxiliaries | ||||||||
Authority control databases: Artists |
|---|