
Photo: Lieven Van Assche
Two years ago, we posted about the delivery of the E-Ship 1, a ship built for Enercon, a German producer of wind turbines. The ship is intended to demonstrate energy saving technology as well as to deliver Enercon wind turbine assemblies to customers. The most unusual aspect of the ship are the four vertical columns, installed port and starboard on the bow and stern, which have been described as looking like four table legs sticking up into the air. These columns, 27 meters tall and 4 meters in diameter, are Flettner rotors. Making use of the Magnus effect, the rotors spin at high speeds and develop lift as the wind blows across them, creating, in essence, a sailing ship without sails.