![]() Ragnar at sea | |
Class overview | |
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Builders | Kockums Shipyard |
Operators | ![]() |
Preceded by | Wale |
Succeeded by | Hugin class |
In commission | 1908–1947 |
Completed | 3 |
Retired | 3 |
General characteristics (as built) | |
Type | Destroyer |
Displacement | |
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 |
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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 12 knots (22 km/h; 14 mph) |
Complement | 69 |
Armament |
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The Ragnar class consisted of three destroyers built for the Royal Swedish Navy before World War I, Ragnar, Sigurd, and Vidar.
The Ragnar-class destroyer was an improved version of the preceding Wale. [1] The ships normally displaced 350 long tons (360 t ) and 416 long tons (423 t) at full load. They measured 66.1 meters (216 ft 10 in) long overall with a beam of 6.3 meters (20 ft 8 in), and a draft of 1.8 meters (5 ft 11 in). The Ragnars were propelled by two 4-cylinder vertical triple-expansion steam enginess, each driving one three-bladed propeller using steam from four Yarrow boilers. The engines were designed to produce a total of 7,200 indicated horsepower (5,400 kW ) for an intended maximum speed of 30 knots (56 km/h ; 35 mph ). On Vidar's sea trials, she reached 31.3 knots (58.0 km/h; 36.0 mph). The ships carried enough coal to give them a range of 1,400 nautical miles (2,600 km; 1,600 mi) at 12 knots (22 km/h; 14 mph). The ships' crew numbered 69. [2] [3]
The Ragnar's dispensed with Wale's 57-millimeter (2.2 in) M89/B guns in exchange for two additional 75-millimeter (3 in) M/05 guns. One gun each was located at the forecastle and stern; the other two guns were positioned on the main deck amidships, one gun on each broadside. The ships were equipped with two 457-millimeter (18 in) torpedo tubes in rotating mounts located between the rear funnel and the stern gun. Two 6.5-millimeter (0.26 in) M/10 machine guns were added to the ships in 1911–1912 and the single torpedo tubes were replaced by twin-tube mounts in 1916–1917. [2]