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Saturday, 22 October 2011

Japanese minelayer and submarine net layer Shirataka or Sirataka 1927-1944

Ron van Maanen


Ordered in the budget year 1929 as part of the project H2, laid down at the Tokyo Ishikawajima Shipyard at Tokyo, Japan on 24 November 1927, launched on 25 January 1919, commissioned on 9 April 1929, in 1934 partly reconstructed at the Kure Naval Arsenal followed by a nearly completely rebuilding in May two years later, refitted as a escort patrol vessel with extra depth charges in November 1940 and finally sunk in action in the Luzon Strait on 31 August 1944 with as result that she was stricken form the navy list on 10 October of the same year.

As a result of the so-called Washington Navy Treaty of 1922 and lacking insufficient budget was her original design altered and her designed displacement of 5,000 tons decreased.With a displacement of 1,345 long tons/1,367 tons (standard) were her dimensions 79,2 (between perpendiculars)-84 (waterline) x 11,55 x 3,1 metres. The 2 sets triple expansions steam engines and 2 Kanpon boilers provided 2,200 ship allowing a speed of maximum 16 knots while with a speed of 10 knots she had a range of 2,000 nautical miles. Her crew numbered 148 men. The original armament consisted of 3-120mm guns and 1-13mm anti aircraft guns. Further more she carried with her 24 anti submarine nets or 100 Mk.5 naval mines and 2 depth charge throwers for which she had 18 charges on board.