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The ACCWing is essentially a twin-skinned sail that can be raised or lowered. It’s fully battened, can be reefed, and can change its section shape using its own internal muscles, operated by compressed air. It achieves this with ‘muscles’ fitted at various positions up the sail on the inside of the wing. The muscles consist of a braided line around flexible hoses, one on each side of the wing. When the hose contracts on one side, it pulls the sail into shape, creating a deeper camber. Having muscles in different positions up along the sail means the section shape can change with height, allowing the twist to be controlled and developing a smooth transition from top to bottom. The rotation of the masts changes the sail’s angle of attack. When it comes to sheet loads, wingsails are often light. This is thanks to the sail’s balancing effect ahead of the mast, much like the equilibrium on a spade rudder. It’s easy to imagine how this system could be totally automated to respond to wind speed and direction, both in section shape and with automated reefing. While you might turn your nose up at letting a computer and servos take over the boat, there will surely be shipping companies that’ll sit up and take note. Since the clipper ships went out of fashion, there’s never been a need for them to put muscles and sails in the same sentence. Until now. ► Become a FREE SUBSCRIBER to Yachting World's YouTube page now - https://www.youtube.com/user/yachtingworld?sub_confirmation=1 ► For the latest reviews, new gear launches and tour news, visit our website: http://www.yachtingworld.com ► Like us on Facebook here - https://www.facebook.com/yachtingworldmagazine ► Follow us on Twitter at: https://twitter.com/yachtingworld ► Feel free to comment below! ► Remember to hit that LIKE button if you enjoyed it :)

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In our next @Dreamtimesail episode our new crew join us as we sail from Port Douglas to stunning Mackay Reef on our way north to the top of Australia. Out this Friday August 18

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Seja também um apoiador do #SAL: https://apoia.se/hashtagsal Neste post do Mural lá no APOIAse tem o link para o nosso grupo do Telegram: https://apoia.se/hashtagsal/contents/view/Grupo-de-Apoiadores-do-SAL-no-Telegram.-CYgvVmY44?page=1#0 É só fazer o login com a sua conta 😀 Seja membro do #SAL no YouTube e ganhe benefícios exclusivos aqui dentro do Youtube, como resposta prioritária de comentários e fundos de tela (wallpapers) do #SAL: https://www.youtube.com/channel/UCj8_DeCUB0uL4cJwFmiQfMQ/join Conheças as mochilas e chaveiros do #SAL: https://www.ligarte.com.br Conheça as camisetas e moletons do #SAL: https://www.lolja.com.br/creators/hashtag-sal/ #veleiro

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