The future of ocean shipping might look surprisingly old-fashioned. After decades of relying almost entirely on engines, fuel and increasingly sophisticated onboard technology, the shipping industry is taking another look at something sailors have depended on for thousands of years: wind. Maersk is preparing to put that idea to work on a modern container ship, agreeing to install a 35-meter rotor sail on one of its 8,700-TEU vessels. Developed by Anemoi Marine Technologies, the rotor sail is expected to be installed by mid-2027 and tested while the ship continues its normal commercial operations.