Most market leading fast planing patrol vessels offer unpleasant ride qualities in waves. Slamming impacts in the magnitude of 20 G have been measured, and frequent impacts of 1G and more are common. Impact accelerations are known to cause severe injuries to people onboard. Frequent accelerations, particularly caused by bow pitching, already at 0,1 G will cause discomfort and "motion sickness". Performance of the craft and the personnel's ability to carry out vital obligations at sea are severely limited, particularly during long exposure time. Effect Ships International AS has developed a brand new Air Supported Vessel (ASV) hull primarily designed for enhanced onboard comfort when travelling at high speed in a sea state. This paper will introduce a 22 m variant adapted to fast surveillance and patrol missions.
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