Jääkarhu

Jääkarhu was a Finnish and later Soviet steam-powered icebreaker. Built in 1926 by P. Smit Jr. Shipbuilding and Machine Factory in Rotterdam, Netherlands, she was the last and largest steam-powered state-owned icebreaker of Finland. After two decades of successful service, Jääkarhu was handed over to the Soviet Union as war reparation in 1945 and renamed Sibiryakov. She remained in service until the 1970s and was broken up in 1972.

Jääkarhu arriving in Helsinki in April 1926.
History
Finland
NameJääkarhu
NamesakeFinnish for "polar bear"
OwnerFinnish Board of Navigation
Port of registryHelsinki,  Finland
Ordered17 April 1924
BuilderP. Smit Jr. Shipbuilding and Machine Factory, Rotterdam, Netherlands
Cost
  • ƒ1,563,000
  • (FIM 26,000,000)
Yard number350
Launched26 August 1925
Commissioned2 March 1926
Decommissioned24 February 1945
In service1926–1945
FateHanded over to the Soviet Union
Soviet Union
NameSibiryakov (Сибиряков)
NamesakeAlexander Mikhaylovich Sibiryakov
In service1945–1972
FateBroken up in 1972
General characteristics
TypeIcebreaker
Tonnage2,622 GRT
Displacement4,836 tons
Length
  • 78.45 m (257.4 ft) (overall)
  • 75.00 m (246.06 ft) (waterline)
Beam
  • 19.28 m (63.3 ft) (moulded)
  • 18.50 m (60.7 ft) (waterline)
Draught6.5 m (21 ft)
Boilers: Eight oil-fired boilers
Engines: Three triple-expansion steam engines
2 × 2,500 ihp (stern); 2,600 ihp (bow)
PropulsionThree propellers; two in stern and one in bow
Speed13.5 knots (25.0 km/h; 15.5 mph) in open water
Crew47
ArmamentArmed during the war
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