Air bubbles save fuel
A number of tests conducted in Sweden shows that air bubbles flowing out of the holes in the hull of a ship reduce friction through the water by about 40 percent, thus reducing fuel consumption by 30 percent.
The results are so promising that the Norwegian shipping company Torghattan North are planning to build a 22 meter ASV (Air Supported Vessel). It will be a passenger and freight fast ferry that will be deployed on several of the company's routes. The ferry is expected to be ready as early as next year.
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