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  • Stern trawler type (2,000 hp engine, variable pitch propeller) 67 meters in length Gross tonnage 1,180 tons


    She participated in the International Indian Ocean Ocean Expedition (IIOE) and Cooperative Study of the Kuroshio and Adlacent Regions (CKS), and in 1968, began voyages to the Northern Ocean; in 1972, she reached 72°N in the Chukchi Sea, setting a record as the northernmost Japanese ship at the time. In addition to training and research, from 1965 the ship also participated in the visit to the graves of the Northern Territories.

    In all, the ship covered a total distance of 518,000 nautical miles on its 96th voyage, with 3,150 students on board.