DNV has granted a Type Approval Design Certificate (TADC) to CSSC Shanghai Marine Energy Saving Technology (CMES-Tech) for its new 35-meter tilting type wind assisted rotor system.This is the first domestically developed
DNV has granted a Type Approval Design Certificate (TADC) to CSSC Shanghai Marine Energy Saving Technology (CMES-Tech) for its new 35-meter tilting type wind assisted rotor system.
This is the first domestically developed rotor sail system in China to achieve this recognition under DNV’s WAPS rules (ST-0511). With this certification, the system is confirmed ready for installation on DNV classed commercial vessels and marks a major milestone for China’s green-shipping technology industry.
As shipping faces mounting pressure from fuel costs and emissions regulations, the demand for reliable and efficient wind-assisted propulsion systems is rising globally. Recent years have seen a growing number of WAPS solutions certified by DNV, including fixed or tiltable rotor, wingsail, and suction sail systems from providers around the world.
The CMES-Tech tiltable rotor system features a retractable and adjustable design, enabling the rotor to adapt to varying draft and clearance conditions, and retract during cargo operations to avoid interference with deck/hatch operations or port infrastructure.
The system also integrates intelligent sensing and automatic control to adjust rotor operation based on real-time wind conditions, maximizing wind propulsion efficiency, while maintaining safety.
“Receiving the DNV TADC is a landmark for China’s green-shipping industry and a strong validation of
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