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Zwaardvis-class submarine
SS793 Submarines1.jpg
ROCS Hai Lung (SS-793
Class overview
Builders: Rotterdam DD

 Royal Netherlands Navy

 ROC (Taiwan) Navy
Preceded by: Dolfijn class submarine
Succeeded by: Walrus class submarine
Subclasses: Hai Lung class submarine
Planned: 4
Completed: 4
Active: 2
Laid up: 2
General characteristics
Displacement: 2,408 tonnes surfaced
2,640 tonnes Submerged
2,660 t and 2,376 t for Hai Lung
Length: 66.9 m
Beam: 8.4 m
Draught: 7.1 m
6.7 m in Hai Lung
Propulsion: 1 shaft from 3 × diesels, 4,200 hp (3,100 kW)
1 × Holec electric motor 5,100 hp (3,800 kW)
Speed: 13 Knots Surfaced
20 knots Submerged
Range: 10,000 nmi (20,000 km) at 9 knots (10 mph; 17 km/h)
Test depth: 220 m
300 m for Hai Lung
Complement: 67 (including 8 officers)
Sensors and
processing systems:
radar type 1001
Sonar Elodone Octopus, type 20026 towed array, DUUX-5
Armament: 6× 533 mm Tubes bow
20 torpedoes (28 in Hai Lung)

The Zwaardvis class submarine (Dutch: "Swordfish") is a conventional attack submarine that replaced the Dolfijn class in the Royal Netherlands Navy. Zwaardvis is based on the U.S. Navy Barbel class with the teardrop hull design. In September 1981 the Republic of China (Taiwan) ordered two modified Zwaardvis class submarines, the Chien Lung/Hai Lung class. In 1992 a repeat order for another 4 boats was turned down by the Netherlands Government because of pressure from the People's Republic of China. The two Dutch boats have been replaced by the Walrus class.

The two decommissioned Dutch boats, HNLMS Zwaardvis and HNLMS Tijgerhaai, were loaded onto a ship and transported to PSC-Naval Dockyard, Lumut, Malaysia in anticipation of purchase by the Malaysian Navy in 1997. However, the Malaysian Navy declined the offer and chose the French Scorpène class instead. The two boats are still in Lumut awaiting a buyer and possible refurbishment.


The Dutch boats were built by the Rotterdamsche Droogdok Maatschappij and the Taiwanese by Wilton Fijenoord.

Ship Laid down Launched Commissioned Decommissioned
Zwaardvis 14 July 1966 2 July 1970 18 August 1972 1994
Tijgerhaai 14 July 1966 25 May 1971 20 Oktober 1972 1995
Hai Lung class
Hai Lung 15 December 1982 6 October 1986 9 October 1987 In service
Hai Hu December 1982 20 December 1986 9 April 1988 In service



Warning: Display title "<i>Zwaardvis</i> class submarine" overrides earlier display title "<i>Zwaardvis</i>-class submarine".

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