A rigid or semirigid structure similar to an aircraft wing fixed vertically on a boat to provide thrust from the action of the wind.
- The biggest problem is how to design a rigid wing sail with minimal weight and complexity penalties.
- Alex, I agree that in lighter winds a rigid wing sail will not outperform a conventional sail.
- The aerofoil wing sails may be symmetrical with a fixed camber, or may be asymmetrical with an adjustable camber.
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