HSwMS Tirfing (1866)

History
Sweden
NameHSwMS Tirfing
NamesakeTyrfing
OperatorSwedish Navy
Awarded2 February 1864
BuilderMotala Verkstad, Norrköping
Cost881,337 Swedish krona
Laid down28 January 1865
Launched1 June 1866
Commissioned2 July 1867
FateScrapped, 1922
General characteristics
Class and typeJohn Ericsson-class monitor
Displacement1,511 metric tons (1,487 long tons)
Length60.88 m (199 ft 9 in)
Beam13.54 m (44 ft 5 in)
Draft3.4 m (11 ft 2 in)
Installed power380 ihp (280 kW)
Propulsion1 shaft, 1 Vibrating lever steam engine, 4 cylindrical boilers
Speed6.5 knots (12.0 km/h; 7.5 mph)
Range950 nautical miles (1,760 km; 1,090 mi)
Complement80–104
Armament2 × 267 mm (10.5 in) M/66 smoothbore guns
Armor

HSwMS Tirfing was the third ship of the John Ericsson-class monitors built for the Royal Swedish Navy in the mid-1860s. She was designed under the supervision of the Swedish-born inventor John Ericsson, and built in Sweden. Tirfing made one foreign visit to Russia (visits to Norway did not count as foreign as that country was in a personal union with Sweden) in 1867, but remained in Swedish or Norwegian waters for the rest of her career. The ship was reconstructed between 1903 and 1905, but generally remained in reserve. She was mobilized during World War I and sold in 1922 for conversion to a barge.