Alcyone

Alcyone's logo, drawn by Luc-Marie Bayle, the creator of the Calypso logo, depicts the second daughter of the Greek god of the wind, Aeolus. According to myth, when Alcyone lost her husband in a shipwreck, she threw herself into the sea. Olympian gods took pity on the lovers and changed them into kingfisher birds, known as halcyons.  Zeus then forbade the winds to blow for seven days before and after the winter solstice, the halcyon's breeding season. The expression "halcyon days" comes from this myth and means a time of tranquillity. Alcyone also holds a place in the sky, as depicted on the logo, as one of the stars in the Pleiades constellation.

How It Works: The Turbosail™'s system was invented by the research team of Lucien Malavard, Bertrand Charrier and Jacques-Yves Cousteau. The system operates on the same principle as a conventional sail, combined with the aerodynamic principle and design of an airplane wing.
An airplane is lifted because of a decrease in air pressure above its wings combined with an increase in air pressure below them. The difference in pressure is created by the acceleration of air currents flowing over the curve of the top of the wing. Air flows around the Turbosail cylinder in much the same way, the "lift" becomes a "push" and the ship sails forth.  At the top of the cylinder, a small fan draws the air in through a vertical slit to control its speed and turbulence.