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 one of the most remote islands of Papua New Guinea, a school is hosting an exciting fundraiser to raise money for much-needed school supplies! One of the fun games is Target Shooting, where participants try to get a stick stuck in a coconut. Watch as the community comes together for a fun and meaningful cause! Places: Sudest Island, Louisiades Archipelago, Papua New Guinea Buy us a coffee ☞ https://buymeacoffee.com/onceuponareef Or Send us a gift ☞ https://throne.com/onceuponareef Follow us: ✔INSTAGRAM: @onceuponareef & @wheres.poppy ✔PATREON ☞ https://www.patreon.com/c/onceuponareef Poppy's YouTube Channel ☞ https://www.youtube.com/wherespoppy 📧 BUSINESS INQUIRIES - onceuponareef@protonmail.com Hey there, we’re Ryan and Poppy, a couple of adventure junkie sailors out to explore the most amazing reefs and islands in the world. We hope by documenting everything this lifestyle encompasses, we will inspire, raise awareness and support on going research to do our part in protecting these natural life systems. Subscribe if you’re on board! #onceuponareef #thelouisiades #papuanewguinea

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Velejar 👉 Inscreva-se no nosso canal e ative as notificações para mais conteúdos incríveis: /@veleirosmj 🔍 Quer mais detalhes? Entre em contato 📲 WhatsApp: https://wa.me/5513981002569 Instagram: /mjveleiros Facebook: /veleirosmj Site: https://www.veleirosmj.com.br Tour Virtual MJ 38 DS: https://bit.ly/tourvirtualmj38 Tour Virtual MJ 44 DS: https://bit.ly/tourvirtualmj44

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