HSwMS ''Hälsingland'' (J23) was the fourth ship of the .

Design

Due to time and cost, HSwMS ''Östergötland'', like the other ships in the class, was built largely according to the drawings of the ''Öland''-class destroyer. The length of the ship was 111.8 meters and the

beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Radio beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially lo ...

was 11.2 meters. Due to different equipment, however, the new vessels became about 200 tons heavier, which gave a

draft Draft, the draft, or draught may refer to: Watercraft dimensions * Draft (hull), the distance from waterline to keel of a vessel * Draft (sail), degree of curvature in a sail * Air draft, distance from waterline to the highest point on a v ...

of 3.7 meters, against the ''Öland''-class of 3.4 meters. The machinery consisted of two oil-fired

steam boilers Steam is water vapor, often mixed with air or an aerosol of liquid water droplets. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization. Saturated or superheated steam is inv ...

of the

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brand, which supplied steam with a pressure of 32 bars to two steam turbines of the

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brand, which in turn each operated a

propeller A propeller (often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working flu ...

. The machinery gave the effect 47,000

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on the axles, which gave a top speed of 35

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. The main guns consisted of four 120 mm (4.7 in) guns m/44 placed in two double towers, one on the foredeck and one on the aft deck. From the beginning, the air defense consisted of seven 40 mm automatic cannons w / 48 E. These were placed two for the superstructure, one on each side amidships, and three on the aft bridge. Around 1965, the middle cannon on the aft bridge was replaced by the

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Robot 07, and to increase the stability of the ship, the two cannons were removed at the same time amidships. For the same reason, all six

torpedo tube A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboa ...

s were also placed in a tube rack, having previously stood in two racks. There were also two submarine bombers and 58 mines on board.

History

''Hälsingland'' was built at

Götaverken Götaverken was a Swedish shipbuilding company that was located on Hisingen, Gothenburg. It was founded in 1841, and ceased building ships in 1989. History The company was founded in 1841 by Scottish businessman Alexander Keiller (Gothenburg), Ale ...

Gothenburg Gothenburg ( ; ) is the List of urban areas in Sweden by population, second-largest city in Sweden, after the capital Stockholm, and the fifth-largest in the Nordic countries. Situated by the Kattegat on the west coast of Sweden, it is the gub ...

and was launched on 14 January 1957 and commissioned on 17 June 1959. Gästrikland was decommissioned on 1 July 1982, after which her superstructure has been dismantled and transferred to Upper Norrland's military area, where they were intended to be used for invasion defense. However, she were never used but were later scrapped. The hull was used by disposal of FOA for explosive tests, before it was sold for scrap in

Karlskrona Karlskrona (, , ) is a locality and the seat of Karlskrona Municipality, Blekinge County, Sweden with a population of 66,675 in 2018. It is also the capital of Blekinge County. Karlskrona is known as Sweden's only baroque city and is host to ...

References

Notes

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External links

Östergötland-class destroyers Ships built in Gothenburg 1957 ships {{Sweden-museum-stub