Https://www.cargomaster.com.au/wp-content/uploads/2012/08/img_slider_05-564x350.jpgThe Finnish company has produced “rotor sails” — composite cylinders about 33 yards (30 meters) tall that happen to be equipped on ship decks and spin while in the breeze. Air tension variances on opposite sides on the whirring equipment support press a vessel forward. Suitable export documentation and ... http://Cfcm.tv