SkySails fuel conservation system









SkySails, based in Hamburg, Germany are developing an international patent pending propulsion system, harnessing the power of wind.



World trade relies on cargo vessels to transport good around the globe with 98.2% of all intercontinental goods carried via sea, and 98% of all cargo vessels powered by diesel engines. All this equates to the fact 25 billion Euros worth of fuel was bought in the year 2002 alone.











The innovative SkySails system saves a considerable amount of fuel over long voyages, therefore cutting costs and helping the environment. The Skysails system consists of a large towing kite filled with compressed air, and an autopilot and wind-optimised route management system. The features of the SkySails technology enable ships to use wind power with entirely novel performance characteristics.



The optimally shaped aerofoil profiles of the Skysail, available with sail areas of up to 5,000 square metres can be be released to a fully adjustable height of 500m. The high altitude operation of the Skysail is important as wind speed increases at height, even when little wind is perceived at sea level sufficient wind energy is available higher in the sky. This combined with refined weather route management systems ensures adherence to schedules is easy.



A ship with a SkySails system does not heel, i.e. it does not tilt to the side with the force of the wind. The ship and its crew are not put at risk. Any potential danger to the ship is excluded by the aerodynamic autopilot force control.



Because the SkySails system operates fully automatically the existing crew is sufficient for the operation of the ship and the sail. During flying operations an autopilot controls the handling of the Skysail.



Almost every sea-going vessel or cruising vessel as well as motor and sailing yachts can be equipped or retrofitted with the SkySails system. And when not in use the Skysail can be folded and stored in any compact location.



Tests of the SkySails system at the Hamburg Ship Model Basin in back in February 2003 helped find the ideal towing point of the kite on the ship. Interaction of the cargo vessel hull with the Skysail was also investigated. To do this the model cargo vessel was towed through the 300 metre long towing basin.



These tests formed the basis for later full size tests on the Baltic sea. Some 50 million Euros was invested in developing the SkySails technology before the system was made commercially available.













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