Wednesday, 11 May 2022

Japanese icebreaker Otomari 1921-1950

Originally to be built as part of the Kamoi-class tankers under the Eight-eight fleet plan 1920 Fiscal Year but instead built as an ice breaker when the Japanese fleet could not enter Nikolayevsk (12 March-3 June 1920) due to the ice and lacking icebreakers. Laid down by Kawasaki Shipbuilding Corporation on 24 June 1921, launched on 3 October 1921, completed on 7 November 1921, decommissioned on 15 September 1945 and broken up between October 1949-March 1950. Displacement 2,367 (standard) tons and as dimensions 60.96 (between perpendiculars) x 15.24 x 5.55 metres or 200.0 x 50.0 x 18.3 feet. The machinery consisted of 2 triple expansion steam engines and 5 scotch boilers supplying via 2 shafts 4,000 shp allowing a speed of 13 knots and a range of 4,000 nautical miles/14 knots speed/500 tons coal bunker capacity. Crew numbered 101 men. Original armed with 1-3” L/40 Armstrong gun, but during the Pacific War were 2-2.5cm Type 96 anti aircraft guns, 6-1.3cm Type 93 anti aircraft guns and depth charges added.

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