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MITSUBISHI SHIPBUILDING NAMES LATEST LNG CARRIER

Thursday, May 16, 2019 

Mitsubishi Shipbuilding Co, a Group company of Mitsubishi Heavy Industries (MHI), held a christening ceremony for a next-generation LNG (liquefied natural gas) carrier under construction for Trans Pacific Shipping 6 Limited, a joint venture of JERA and Nippon Yusen Kabushiki Kaisha (NYK Line).

The new ship, named Bushu Maru, is the latest 'Sayaringo STaGE' design, featuring improvements in both LNG carrying capacity and fuel performance due to the adoption of a more efficient hull structure and an innovative propulsion system. Completion and delivery is scheduled for June 2019, after which the Bushu Maru will be put into service transporting LNG for the Freeport LNG Project in the US state of Texas (in which JERA is participating), among other ventures.

Bushu Maru has a length of 297.5m, width of 48.94m, and depth of 27.0m, with a draught of 11.5m. Deadweight tonnage is approximately 80,300 tons, with a total tank holding capacity of 180,000m3. Launching took place on December 14, 2017. Mitsubishi Shipbuilding received the order for the new vessel through MI LNG, a joint venture for the design and sale of LNG carriers established by MHI and Imabari Shipbuilding. Construction was managed by Mitsubishi Heavy Industries Marine Structure, an MHI Group company based in Nagasaki. The vessel's name is derived from the former province of Musashi (currently the prefectures of Tokyo, Saitama, and the eastern part of Kanagawa), one of the areas served by JERA.

The Sayaringo STaGE is a successor to the 'Sayaendo,' a vessel noted for reliability and refined MOSS-type spherical tanks. The use of apple-shaped tanks allows for greater LNG carrying capacity without increasing the ship's width, while the propulsion system further improves fuel efficiency over the previous model. STaGE, an acronym derived from 'Steam Turbine and Gas Engines', is a hybrid propulsion system combining a steam turbine and gas-fired engines. Effective utilisation of waste heat from the engines for the steam turbine provides a substantial improvement in plant efficiency, allowing for high-efficiency navigation at both low and high-speeds.

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