HSwMS Uppland and HSwMS Visborg

Swedish submarine HSwMS Uppland (S71) docked alongside auxiliary vessel HSwMS Visborg (A265).

The Gotland-class submarines of the Royal 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.


  • Type: AIP-equipped Diesel-Electric Patrol Submarine
  • Service Period: 1996-Present
  • Characteristics
    • Length: 198 feet 2 inches (60.4 meters)
    • Beam: 20 feet 4 inches (6.2 meters)
    • Draft: 18 feet 4 inches (5.59 meters)
    • Displacement: 1,647 tons (Surfaced); 1,763 tons (Submerged)
  • Crew: 24-32
  • Propulsion: 2 x Diesel-electric MTU engines, 2 x Kockums v4-275R Stirling AIP units
  • Speed:
    • Surfaced: 11 knots (20 km/h)
    • Submerged: 20 knots (37 km/h) on batteries; 5 knots (9.3 km/h) on AIP
  • Sensor Suite:
    • CSU 90-2 Integrated ASDIC sensor suite
  • Armament
    • 4 x 533 mm (21.0 in) Torpedo tubes
    • 2 x 400 mm (15.7 in) Torpedo tubes
    • 48 x Externally Mounted Naval Mines

Unit RunEdit

  • HSwMS Gotland (S70)
  • HSwMS Uppland (S71)
  • HSwMS Halland (S72)

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