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Publications
Bettencourt, J.H., Fonseca, N. e Guedes Soares, C. (2012), “Experimental study of the performance of a rigid wing sail”, Maritime Engineering and Technology, Guedes Soares et al. (Eds),Taylor & Francis Group, London, pp. 045-052
The performance of a rigid wing sail was studied by wind tunnel experiments. The lift and drag forces were measured for a range of angles of attack and flap deflections in order to get information about the sails performance envelope. The results obtained show that the rigid wing sail behaves like a traditional cloth sail when sailing against the wind, but has limitations on its performance when sailing in favour of the wind. These limitations are related to the rigid sail’s design as an airplane wing which does not account for operation in the low lift to drag ratio regime, contrary to the design of traditional cloth sails.
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