Recently, the first set of retractable rudder propellers means Wuhan Marine Machinery Co., Ltd. independently developed smoothly through the CCS Chuanjian. Test results show that the performance index of all products meet the design requirements, in full compliance with the design and manufacturing practices.
    Retractable rudder propellers device is applied to 300 tons crane barge, using 700kW electric drive, including propulsion unit, rotary unit, lifting unit, hydraulic system and electrical control systems. This means a feature-rich, complex process, high technical requirements, to ensure the successful development of products, the entire process of Wuhan ship machines Manpower planning, highlighting the whole process of quality control, strict implementation of classification societies and technical design standards to ensure the smooth development of the product.