Four Points of View on the Designation of the Navigation Area for Yachts

Usually, the need for research arises when there is a discrepancy between theoretical and practical data. For example, RINA (Registro Italiano Navale) Rules describe two navigation areas yachts: unrestricted area with significant wave height of not more than 4 m. In GL (Germanischer Lloyd) Rules, it proposed to assign maximum that ship can meet, taking into account its speed design features. The CCS (China Classification Society) consider five categories yachts different navigational conditions. range from 0.5 m 6 m, distance place refuge 5 200 nautical miles or more. Directive European Parliament Council does ship, heights 0.3 are proposed. practice, following situations may arise: necessary determine value at which will be able move against possible decrease in ship; wetness deck begin; study relationship allowable values accelerations technical characteristics emergency mooring rescue calculate minimum time render assistance people. These four considered article by using energy criterion EWC, recommendations classification societies, modeling behavior vessel on head wave.