University of Minnesota analyzed that channels 40-225 micron coating on the surface of the propeller generates an increase of 'efficiency of 3% for a turbine of 2.5 MW, less aerodynamic drag inolotre this also translates into less noise. This kind of aerodynamic research is inspired by research into the sails of the America's Cup boats and on the wings of Airbus, which has led to a reduction of aerodynamic drag by 6%.
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