Styrsö-class mine countermeasures vessel

M14 HMS Sturkö
Class overview
Builders:	Kockums
Operators:	Swedish Navy
Built:	1996-1997
Completed:	4
Active:	4
General characteristics
Type:	Mine Countermeasures Vessel
Displacement:	205 tonnes
Length:	36.0m
Beam:	7,9m
Draught:	2.2m
Speed:	13 knots (24 km/h; 15 mph)
Complement:	10 officers and 8 conscripts
Armament:	2x 12,7 mm Machine-guns

The Styrsö class is a Swedish mine countermeasures vessel built from glass fiber. Among its intended missions are mine detection, mine hunting and patrolling. The ships are named after islands from four different archipelagos of Sweden.

Description

The ships are equipped for acoustic, magnetic and mechanical mine clearance. There is also an underwater vehicle type Uven and a Towed array sonar on board. It is also possible to manoeuvre the remote controlled mine clearance system SAM from the ships.

The Styrsö class ships have very good manoeuvring properties and are used for hunting bottom mines, traditional mine sweeping and operates in coastal waters. They carry underwater ROVs of the type Uven and are prepared for the next generation of rovs called ROV S.

The class is built exclusively with civilian technology, so called (COTS), everything from diesel engines to the computers on board have been bought from the civilian market. This method simplifies the procedure of upgrading the system, it is also very cost effective eliminating the need to develop new expensive military systems. The ships have a completely integrated command and navigation system with computer communication and projection of charts in a 3D environment.

History

The class consists of four ships that were built from 1996 to 1997. They are among the most modern mine countermeasures ships in the world and an important addition to the Swedish mine clearance ability.

In 2004 HMS Spårö and HMS Sturkö were modernised, pulling out some of their capability for traditional mine clearance in favour of extended human dive support, the modified vessels are occasionally called Spårö class.

Units

Bow number	Ship name	Laid down	Launched	Commissioned	Service	Status
M11	HMS Styrsö			1996	3rd Naval Warfare Flotilla	332. Mine Clearance Squadron
M12	HMS Spårö		30 August 1996	21 February 1997	4th Naval Warfare Flotilla	42. Mine Clearance Division
M13	HMS Skaftö		1997	1997	4th Naval Warfare Flotilla	42. Mine Clearance Division
M14	HMS Sturkö			1998	3rd Naval Warfare Flotilla	332. Mine Clearance Squadron

References

• Minröjningsfartyget Styrsö - Försvarsmakten (Swedish)
• Örlogsboken 2003 (Swedish)