New innovative sail devices can be used as a modification for rigid sails or used as a stand-alone energy saving device.
Increase Propulsive ForceAfter several years of research & development (R&D) Eco Marine Power (EMP) announced today that it has developed a new type of sail device for ships. This sail device known as a SailetTM(patent pending) can increase the propulsive forces created by EMP’s patented EnergySail®and can also be used as a stand-alone...
https://mfame.guru/eco-marine-power-develops-new-sail-device-for-ships/