Draken-class submarine (1960)

HSwMS Draken in 1962
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
Retired	6
Preserved	1
General characteristics
Type	Submarine
Displacement	770 t (760 long tons) (Surfaced) 950 t (930 long tons) (Submerged)
Length	69.3 m (227 ft 4 in)
Beam	5.1 m (16 ft 9 in)
Draught	5.3 m (17 ft 5 in)
Propulsion	1 shaft diesel-electric 2 Pielstick diesel engines 1,660 hp (1,240 kW) 2 ASEA electric motors
Speed	17 knots (31 km/h; 20 mph) surfaced 22 knots (41 km/h; 25 mph) submerged
Complement	36
Armament	4 × 533 mm (21.0 in) bow torpedo tubes 12 torpedoes

The Draken class was a submarine class built for the Swedish Navy from 1960 to 1962. A total of six submarines were delivered. Four of the boats were modernised in 1981–1982. 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. Draken, Vargen, Nordkaparen and Springaren were ordered from Kockums. Gripen and Delfinen were from Karlskrona. These boats were decommissioned 1988–1990 and were succeeded by the Sjöormen and Näcken-class submarines.

One submarine, HSwMS Nordkaparen, was preserved and can be seen at the Maritiman in Gothenburg.^[1][2]

• Conway's All the World's Fighting Ships 1947–1995