Ragnar-class destroyer

Ragnar at sea
Class overview
Builders	Kockums Shipyard
Operators	Swedish Navy
Preceded by	Wale
Succeeded by	Hugin class
In commission	1908–1947
Completed	3
Retired	3
General characteristics (as built)
Type	Destroyer
Displacement	350 long tons (356 t) (normal) 416 long tons (423 t) (full load)
Length	66.1 m (216 ft 10 in)
Beam	6.3 m (20 ft 8 in)
Draft	1.8 m (5 ft 11 in)
Installed power	4 Yarrow boilers 7,200 ihp (5,400 kW)
Propulsion	2 shafts; 2 triple-expansion engines
Speed	30 knots (56 km/h; 35 mph)
Range	1,400 nmi (2,600 km; 1,600 mi) at 16 knots (30 km/h; 18 mph)
Complement	69
Armament	4 × single 75 mm (3 in) guns 2 × single 45 cm (17.7 in) M/02-04 torpedo tubes

The Ragnar class was a class of three destroyers built for the Royal Swedish Navy before World War I. The class consisted of HSwMS Ragnar, HSwMS Sigurd, and HSwMS Vidar. The lead ship, Ragnar, was launched May 30, 1908. The design was based on the earlier destroyer Wale. The Ragnar class led a relatively quiet service life performing routine missions such as escorts and exercises between their commissioning before World War I and their decommissioning shortly after World War II.

References

Printed sources

• Borgenstam, Curt; Insulander, Per; Kaudern, Gösta (1989), Jagare: med Svenska flottans jagare under 80 år (in Swedish), Västra Frölunda: Marinlitteratur, ISBN 91-970700-4-1, SELIBR 7792227
• Friedman, Norman (2011). Naval Weapons of World War One: Guns, Torpedoes, Mines and ASW Weapons of All Nations; An Illustrated Directory. Barnsley, UK: Seaforth Publishing. ISBN 978-1-84832-100-7.
• von Hofsten, Gustav; Waernberg, Jan; Ohlsson, Curt S. (2003), Örlogsfartyg: svenska maskindrivna fartyg under tretungad flagg, [Forum navales skriftserie], 1650-1837 ; [6] (in Swedish), Stockholm: Svenskt militärhistoriskt bibl. i samarbete med Marinlitteratur, ISBN 919743843X, SELIBR 8873330
• Westerlund, Karl-Erik (1985). "Sweden". In Gray, Randal (ed.). Conway's All the World's Fighting Ships 1906–1921. London: Conway Maritime Press. pp. 355–363. ISBN 978-0-85177-245-5.
• Whitley, M. J. (2000). Destroyers of World War Two: An International Encyclopedia. London: Cassell & Co. ISBN 1-85409-521-8.