Amasus, a European company specializing in short sea, bulk, and general cargo shipping, has partnered with Spain’s bound4blue for the second installation of the company’s innovative suction sail technology, known as eSail, on one of its cargo vessels. This upcoming installation will be the largest suction sail system fitted on a general cargo ship to date. Under the new agreement, a 22-meter (72-foot) unit will be retrofitted onto a 90-meter (295-foot) cargo vessel, which has a deadweight tonnage of 3,000. While the specific vessel hasn’t been named, the installation is planned for mid-2025 at Astander Shipyard in Santander, Spain. This project represents a significant advancement in wind-assisted propulsion technologies, with bound4blue claiming that its suction sail can generate six to seven times more lift than traditional sails. The autonomous system works by drawing air across its aerodynamic surface to create propulsive force. It features a porous skin that allows air to be sucked in, while a suction fan at the top helps maintain the airflow attachment. An electric motor adjusts a flap to optimize this airflow, and the entire structure can rotate. This will be Amasus's second installation of bound4blue's technology, following the positive results from their first project on the Eems Traveller, a 2,850 dwt vessel that began testing in July 2023. For that ship, two suction sails were installed, each standing 56 feet above the deck. Third-party validation of the eSail's performance on the Eems Traveller has been provided by Lloyd’s Register, which has reviewed the operational data. They are currently finalizing the figures, which will be released soon.