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Wind Assisted Propulsion System for Container VesselBureau Veritas (BV) has delivered an Approval in Principle (AiP) to Zéphyr & Borée for its first open-top 1,800 TEU containership, demonstrating the feasibility of using wind-propelled wing-sails on this type of vessel.
The 185 meter-long container vessel is designed with five cargo holds, mostly open-top. Propulsion means are compliant with IMO’s Tier III requirements, and the vessel is equipped with shaft generators and a heat recovery system that minimizes fuel consumption. The vessel’s propulsion system will be assisted by eight sails provided by CWS (Computed Wing Sails). The design is a thick, asymmetrical wing-sail that can be steered to catch port and starboard winds, and adjusts itself automatically depending on the wind conditions to ensure optimal savings. BV was involved from the very early stage of the design. The main design principles were reviewed in order to ensure the feasibility of the concept and identify any obstacles.
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