'Spinning sail' used on ocean tankers to save fuel

Signal of change / 'Spinning sail' used on ocean tankers to save fuel

By Jenny Lopez / 24 Nov 2017

'Spinning sail' rebooted to cut fuel and make ocean tankers greener

An ocean-going tanker is to be fitted with a type of "spinning sail" invented almost a century ago in a step that could lead to more environmentally friendly tankers worldwide. The unusual sails are rotating columns fixed to the deck of the ship, whose interaction with the wind provides forward thrust.



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