en.Wedoany.com Reported - Recently, the new generation high-end green intelligent ro-pax ferry for the Qiongzhou Strait, equipped with the independently developed podded propulsion system and high-end retractable fin stabilizer by CSSC 704th Research Institute, officially commenced construction. This high-end ro-pax ferry, tailored by CSSC for the core Haikou-Xuwen route, integrates four key dimensions: intelligent empowerment, capacity expansion, green and low-carbon operation, and riding comfort. Once completed, it will undertake the transportation of passengers and vehicles between Guangdong and Hainan, facilitating the iterative upgrade of shipping equipment in the Qiongzhou Strait and supporting new water transportation demands for the closed operation of the Hainan Free Trade Port.
The vessel was designed and developed by the Shanghai Ship Research and Design Institute (SDARI) under CSSC and constructed by Wuchang Shipbuilding Industry Group Co., Ltd. It has an overall length of 135 meters, a beam of 21 meters, a depth of 6.6 meters, a design draft of 4.35 meters, a design speed of 15.5 knots, and is classed by the China Classification Society (CCS).
The vessel specifically adopts key core equipment, including the 2.3 MW-class podded propulsion system independently developed by the 704th Research Institute and a high-end retractable fin stabilizer with a single fin area of 8 square meters, adding high-tech elements to this new generation high-end green intelligent ro-pax ferry, making its overall performance significantly superior to traditional ship types.
Podded Propulsion System:
Full-Range Rotation, Flexible and Quiet
The 2.3 MW-class podded propeller adopts an external pod-type full-revolving structure, achieving 360° seamless full-range rotation. It enables special maneuvers such as small-radius turning, lateral translation, and rapid braking, significantly reducing the vessel's turning radius, markedly improving control precision and response speed under low-speed conditions, reducing navigation vibration and cabin noise, and enhancing onboard comfort. In particular, it meets the silent navigation requirements of ro-pax ferries, precisely adapting to the safety and flexibility demands of port berthing and unberthing and complex sea conditions on the Haikou-Xuwen route.
Fin Stabilizer Device:
Efficient Stabilization, Steady Ship Protection
The high-end retractable fin stabilizer, custom-designed by the 704th Research Institute for this vessel, features a single fin area of 8 square meters, employing a retractable structure design and an innovative flap fin design. During navigation operations, the fin extends to provide stabilizing lift, and during steady sailing, it can retract into the fin box on the ship's side to reduce navigation resistance, balancing energy-saving and equipment protection needs. Compared to traditional fishtail fins, the flap fin has a higher lift coefficient, generating stronger counteracting stabilizing torque, resulting in more pronounced hull roll reduction. It effectively copes with the complex sea conditions of strong winds, high waves, and severe rolling in the Qiongzhou Strait, significantly enhancing navigation stability and passenger comfort.
Under the vessel's design draft and rated service speed conditions, the fin stabilizer achieves a stabilization efficiency of over 85%, effectively mitigating hull rolling caused by wind and waves at sea. This not only significantly improves the vessel's navigation safety factor under adverse sea conditions, reducing safety risks such as hull capsizing and cargo shifting during strong winds and high waves, but also effectively alleviates seasickness caused by vessel motion, greatly improving passenger comfort and comprehensively upgrading the travel experience.
As the leading enterprise in China's chain for ship podded propellers and stabilizer devices, the 704th Research Institute adheres to benchmarking against internationally advanced products, continuously innovating to overcome challenges. It has established a complete series product spectrum and technical standard system, with products widely applied in various ship types, including the intelligent unmanned system mother ship "Zhu Hai Yun," the scientific research and teaching support vessel "Tong Ji," and luxury ro-pax ferries exported to Europe. Its market competitiveness, industry influence, and product reputation are steadily growing.
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