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The Japanese submarine ''I-158'' was a cruiser submarine of the KD3A sub-class built for the Imperial Japanese Navy (IJN) during the 1920s. She supported Japanese forces during the invasion of Malaya in December 1941 and was instrumental in tracking Force Z, the two British capital ships that attempted to intercept the Japanese invasion forces, so they could be sunk by torpedo bombers. The boat sank a few Dutch merchant ships in early 1942 during the Dutch East Indies campaign and was then was transferred to the Central Pacific in May to support the fleet during the Battle of Midway in early June. Upon her return to Japan the following month, she became a training ship until early 1945 when she was modified to serve as a carrier for Kaiten manned torpedoes. ''I-158'' survived the war to be scuttled in 1946. ==Design and description== The submarines of the KD3A sub-class were the first Japanese-designed cruiser submarines, based on experience with earlier designs based on British and German cruiser submarines.〔Jentschura, Jung & Mickel, p. 170〕 They displaced surfaced and submerged. The submarines were long, had a beam of and a draft of . The boats had a diving depth of and a complement of 60 officers and crewmen.〔Carpenter & Polmar, p. 93〕 For surface running, the boats were powered by two diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a electric motor. They could reach on the surface and underwater. On the surface, the KD3As had a range of at ; submerged, they had a range of at .〔Chesneau, p. 198〕 The boats were armed with eight internal torpedo tubes, six in the bow and two in the stern. They carried one reload for each tube; a total of 16 torpedoes. They were also armed with one deck gun for combat on the surface.〔Bagnasco, p. 183〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Japanese submarine I-158」の詳細全文を読む スポンサード リンク
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