Tokusetsu Kosakukan

About Tokusetsu Kosakukan

The IJN called converted repair ships "Tokusetsu-kosakukan". Their main task was to make temporal repairs on damaged vessels. Six merchant ships and one seized ship were used as Tokusetsu-kosakukan between 1937 and 1945. "Kagu Maru" was removed from the navy list before the outbreak of the Pacific War. "Urakami Maru" was designated for engaging in salvage services.

Data of Tokusetsu Kosakukan

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History of Tokusetsu Kosakukan

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iKagu Maruj

Matsue Maru

Yamabiko Maru

Urakami Maru

Hakkai Maru

Yamashimo Maru



Photo Source:

  1. Kagu Maru: S. Yamada. Nippon Shosentai no Kaiko No.77, Funenokagaku. Sempaku Gijutsu Kyokai Dec 1985
  2. Matsue Maru: K. Ueno. Sempaku 100 nenshi Zempen. Ariake Shobo 1957
  3. Yamabiko Maru: Uaga Dock. Uraga Dock 60 nenshi. 1957
  4. Hakkai Maru: S. Yamada. Nippon Shosentai no Kaiko No.143, Funenokagaku. Sempaku Gijutsu Kyokai June 1991
  5. Yamashimo Maru: S. Yamada. Nippon Shosentai no Kaiko No.254, Funenokagaku. Sempaku Gijutsu Kyokai Sep 2000
  6. Hakusa: Mitsubishi Heavy Industries, Ltd. Shinzosen shashinshi. 1981
  7. Urakami Maru: The Japan Shipping Exchange, Inc. Kaiun Dec 1941 (Collection of Mr. Erich Mühlthaler)