Draken-class submarine

HMS Nordkaparen at the Maritime Museum in Gothenburg
Class overview
Builders:	Kockums
Operators:	Swedish Navy
Preceded by:	Hajen class
Succeeded by:	Sjöormen class
Built:	1957-1962
In commission:	1962-1988
Planned:	6
Completed:	6
Active:	0
Retired:	6
Preserved:	1
General characteristics
Type:	Submarine
Displacement:	770 tonnes (Surfaced) 950 tonnes submerged
Length:	69.3 m (227 ft)
Beam:	5.1 m (17 ft)
Draught:	5.3 m (17 ft)
Propulsion:	1 shaft diesel-electric 2 Pielstick Diesels 1660 hp 2 ASEA electric motors
Speed:	17 knots (31 km/h; 20 mph) surfaced 22 knots submerged
Complement:	36
Armament:	4 × 533mm torpedo tubes(bow, 12 torpedoes)

The Draken class (Dragon) was a submarine class built for the Swedish navy 1960-1962. A total of six submarines was delivered and kept in service until the late 1980s when the more modern Näcken class submarine replaced them. Four of the boats were modernised in 1981-82. The design was a modified version of the Hajen class with only one shaft with a larger 5-bladed propeller for improved underwater performance and reduced noise.

One submarine (HMS Nordkaparen) was preserved and can today been seen at the Göteborgs Maritima Center in Gothenburg.