Ragnar-class destroyer

The Ragnar class consisted of three destroyers built for the Royal Swedish Navy before World War I, Ragnar, Sigurd, and Vidar. The lead ship, Ragnar, its design based on the earlier destroyer Wale, was launched May 30, 1908. 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.

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) torpedo tubes