North West Bay Ships (NWBS), located in Hobart, Australia, commenced construction in 1999 of its first build, a 55 m trimaran passenger ferry. Launched in March 2001, MV Triumphant proved to be highly efficient, achieving 40 knots fully loaded with 75% of the installed power of equivalent vessels in the marketplace. Heavy-weather trials demonstrated the impressive handling characteristics of the trimaran platform, with MV Triumphant maintaining 36 knots in a head sea of 4.8 m significant wave height. The vessel is currently operating a passenger service between Japan and Korea. This paper looks at the design processes applied by NWBS, and describes the unique characteristics of this vessel. A description of the vessel's construction is included, and the paper concludes with a preview of the world's largest trimaran luxury motor yacht, a 60 m vessel currently under construction by NWBS and due for delivery in December 2004.
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