Swedish Royal Navy – HMS Halland Gotland Class Submarines [720p]

The Gotland-class submarines of the Swedish Navy are modern diesel-electric submarines, which were designed and built by the Kockums shipyard in Sweden. They are the first submarines in the world to feature a Stirling engine air-independent propulsion (AIP) system, which extends their underwater endurance from a few days to weeks. This capability had previously only been available with nuclear-powered submarines.

The ship’s combat management system is the 9SCS Mark 3 from Saabtech Vectronics (formerly CelsiusTech). The system carries the Swedish Royal Navy designation SESUB 940A. The system uses an extended version of the ADA software from Saabtech Vectronics’ 9LV Mk 3 surface ship combat management system.

The fire control system has the capacity to control several torpedoes in the water simultaneously. The 9SCS Mark 3 Combat Management System has three Type IID multifunction consoles from Terma. The terminals are for command and control, communications, and weapon control. The consoles are connected via a dual-Ethernet, copper-wire, Local-Area Network (LAN).

In January 2006, the Swedish government placed an order with Saab Systems for the upgrade of the combat system. The new system is called SESUB 960. Navigation, sensor management and weapon handling systems will also be upgraded.

The submarines are fitted with four 533mm torpedo tubes and two 400mm torpedo tubes. The Bofors Underwater Systems Type 613 torpedoes are fired from the 533mm tubes. The Type 613 is a heavy-weight anti-surface ship torpedo. It has wire guidance and passive homing, delivering a warhead of 240kg. The launch of the torpedo is by swim-out discharge: the speed is 40kt and the range, 20km. The 613 torpedo equips all Sweden’s submarines, the A19 Gotland, A17 Vastergotland, A14 Nacken and A12 Sjoorrmen.

Saab Bofors Underwater Systems has developed a new heavyweight torpedo for the Swedish Navy, the Torpedo 2000 (Swedish Navy designation Torpedo 62).

It is a high-speed anti-submarine / anti-surface torpedo with a range of more than 40km and speed of over 40kt.

The Gotland Class submarine will be equipped with the Torpedo 2000, which is fired from the 21in tubes. Gotland has the capacity to carry sixteen Torpedo 2000s. The combat system on the Gotland class submarines will be adapted to accommodate a new generation of torpedoes including the new Torpedo 2000, which will become the submarine’s principle weapon.

The submarine is equipped with a CSU 90-2 integrated sonar sensor suite from Atlas Elektronik. This includes a passive cylindrical bow array, an intercept array and two passive flank arrays. The sonar system uses ADA software.

The submarine is fitted with a Kollmorgen search and attack periscope and a Terma Scanter navigation radar. The electronic support measures system is the Thales Defence Ltd. Manta radar surveillance and warning system. Manta carries out surveillance, detection, analysis, classification and identification of hostile radar threats from D-band to J-band.