the magnus effect

The first long-term test of a rotor sail fitted on a passenger ferry is coming to an end after three years aboard Viking Line’s Viking Grace. According to both the line and the technology company, the tests provided important data demonstrating the benefits of the rotor sail concept and helping to advance the technology. The test was also the first aboard an LNG-fueled ship creating the first LNG-wind electric propulsion hybrid ship.

During the test, the Viking Grace was able to reduce its emissions, fuel burn, and fuel costs according to data released by Norsepower, developer of the rotor sail. They estimated the annual reduction in carbon emissions at approximately 900 tons, which they said was equivalent to reducing LNG fuel consumption by 300 tons per year…

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