Näcken-class submarine

The Näcken-class submarines, also known as the A14 type, were built for the Swedish Navy in the late 1970s. The boats were authorised in 1972 and the programme was completed in 1981. All boats were built by Kockums in Karlskrona. The boats had a teardrop hull and diving depth was 150 metres (490 ft). Between 1987 and 1988 Näcken was cut in half and an 8-metre (26 ft) long hull section containing a prototype Air-independent propulsion (AIP) using a closed cycle Stirling engine was installed between the aft battery/propulsion & power control room and the engine/motor room. This technology increased underwater endurance to 14 days and has been adopted in subsequent Swedish submarines.

HSwMS Neptun
Class overview
Name: Näcken-class
Builders: Kockums
Operators:
Preceded by: Sjöormen-class
Succeeded by: Västergötland-class
Planned: 3
Completed: 3
Laid up: 1
Retired: 3
Preserved: 1
General characteristics
Type: Submarine
Displacement:
Length: 44 m (144 ft 4 in)
Beam: 5.7 m (18 ft 8 in)
Draught: 5.5 m (18 ft 1 in)
Propulsion:
  • 2 × MTU diesel engines
  • 1 × Jeumont-Schneider electric motor
  • 1 shaft
Speed:
  • 20 knots (37 km/h; 23 mph) surfaced
  • 25 knots (46 km/h; 29 mph) submerged
Test depth: 150 m (490 ft)
Complement: 19 (5 officers)
Sensors and
processing systems:		 FAS
Armament:
  • 6 × 533 mm (21 in) torpedo tubes
  • 2 × 400 mm (16 in) torpedo tubes
  • Mines

By the early 2000s the class was decommissioned from the Swedish navy. HSwMS Näcken was temporary leased to the Royal Danish Navy but was returned in 2005.

Ships
Ship Launched Commissioned Current status
Näcken 17 April 1978 25 April 1980 leased to the Royal Danish Navy 2001-2005 as Kronborg,[1] scrapped in 2016
Neptun 6 December 1978 5 December 1980 on display at Marinmuseum Karlskrona
Najad 13 August 1979 26 June 1981 Scrapped in 2015[2]

References
Notes
  1. "Kronborg (2001–2004)". Danish Naval History. Retrieved 2013-03-17.
  2. http://www.blt.se/karlskrona/systrar-fran-kalla-kriget-skrotas/
Bibliography
  • Conway's All the World's Fighting Ships 1947-1995
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