Hyundai Heavy Gets Design Approval For Hi-Rotor

South Korea’s largest shipyard Hyundai Heavy Industries (HHI) has acquired design approval for Hi-Rotor, its own wind-assisted propulsion tech. HHI claims its rotor sail tech can contribute to reducing fuel consumption and carbon emissions by about 6 to 8%. Many new forms of wind propulsion are coming to market of late. Separately, top brass at