Neptun-class submarine

The Neptun-class submarine was a Swedish submarine class built by Kockums. The first submarine was launched in 1942 and a total of three submarines were built: HSwMS Neptun, HSwMS Najad and HSwMS Nacken. The class was decommissioned in 1966.^[1][2]

Class overview
Name	Neptun-class
Builders	Kockums
Operators	Swedish Navy
Preceded by	Sjölejonet class
Succeeded by	Hajen class
Built	1942-43
Planned	3
Completed	3
Retired	3
General characteristics
Type	Submarine
Displacement	550 tonnes (surfaced) 730 tons (submerged)
Length	62.6 m (205 ft 5 in)
Beam	6.4 m (21 ft 0 in)
Draught	3.4 m (11 ft 2 in)
Propulsion	2 shaft diesel electric 2 MAN diesels 1,800 hp (1,300 kW) 2 electric motors 1,000 hp (750 kW)
Speed	15 kn (28 km/h; 17 mph) surfaced 10 kn (19 km/h; 12 mph) submerged
Complement	35
Armament	5 x 533 mm (21 in) torpedo tubes 1 x 40 mm (1.6 in) AA gun 1 x 20 mm (0.79 in) AA gun 20 mines

Ships

Name	Marking	Laid Down[3]	Launched[3]	Commissioned[3]	Fate[4]
Näcken	Nä	November 1941	26 September 1942	March 1943	Stricken 1 April 1966. Sold for scrap November 1970
Najad	Nj	February 1942	26 September 1942	May 1943	Stricken 1 April 1966. Sold for scrap November 1970
Neptun	Np	March 1942	17 November 1942	June 1943	Stricken 1 April 1966. Sold for scrap November 1970