{"id":1374,"date":"2014-11-15T17:39:05","date_gmt":"2014-11-15T16:39:05","guid":{"rendered":"https:\/\/www.initiatives-coeur.fr\/actus\/?p=1374"},"modified":"2014-11-15T17:39:05","modified_gmt":"2014-11-15T16:39:05","slug":"decryptage-de-la-course-de-tanguy-du-15-novembre","status":"publish","type":"post","link":"https:\/\/initiatives-coeur.fr\/actus\/decryptage-de-la-course-de-tanguy-du-15-novembre-1374","title":{"rendered":"D\u00e9cryptage de la course de Tanguy du 15 novembre"},"content":{"rendered":"<div class=\"zone title\">Commen\u00e7ons par l&rsquo;ETA <\/div>\n<div class=\"zone text\">Le routage du jour nous donne une arriv\u00e9e au NW de la Guadeloupe mardi en milieu d&rsquo;apr\u00e8s-midi, heure guadeloup\u00e9enne. Les 3 premiers IMOCAs ont mis environ 12 heures \u00e0 faire ensuite le tour jusqu&rsquo;\u00e0 la ligne d&rsquo;arriv\u00e9e, ce qui donnerait un passage de ligne dans la nuit&#8230; \u00e0 suivre&#8230;<\/p>\n<div>Initiatives-Coeur est pass\u00e9 sous la barre des mille milles \u00e0 parcourir avant l&rsquo;arriv\u00e9e et n&rsquo;a enfin plus besoin de plonger au Sud pour garder du vent. Toute son attention est d\u00e9sormais focalis\u00e9e sur le fait de gagner le plus possible vers la Guadeloupe dans un Aliz\u00e9 bien \u00e9tabli, comme on le voit sur la cartographie ci-dessous :<\/div>\n<\/div>\n<div class=\"zone picture\"><\/div>\n<div class=\"zone stitle\">Alessandro est \u00e0 port\u00e9e de nez<\/div>\n<div class=\"zone text\">Alessandro est d\u00e9sormais \u00e0 port\u00e9e du nez rouge d&rsquo;Initiatives-Coeur, mais l\u00e0 n&rsquo;est pas l&rsquo;essentiel depuis l&rsquo;escale que Tanguy a d\u00fb faire \u00e0 Brest et qui ne lui permettait plus d&rsquo;esp\u00e9rer batailler dans le peloton.<br \/>Pour Tanguy, l&rsquo;important est d&rsquo;accumuler des milles en solitaire sur son nouveau bateau, et de noircir ses carnets de notes en vue du chantier d&rsquo;hiver. Voiles, ergonomie, assiette, tout y passe, et en particulier le pilote automatique.<\/p>\n<\/div>\n<div class=\"zone stitle\">\u00ab\u00a0pilote automatique \u00a0\u00bb : k\u00e9zako ?<\/div>\n<div class=\"zone text\">Instrument indispensable \u00e0 la performance en solitaire, le pilote automatique se doit d&rsquo;\u00eatre le plus loyal des compagnons pour le skipper. Il va piloter le bateau, soit en suivant un cap magn\u00e9tique, soit en maintenant le bateau \u00e0 un angle constant par rapport \u00e0 la direction du vent. Ce dernier mode est le plus utilis\u00e9, car il permet d&rsquo;optimiser la performance, et d&rsquo;\u00e9viter les mauvaises surprises en cas de brusque variation du vent. Mais le bateau \u00e9tant soumis \u00e0 d&rsquo;innombrables mouvements de roulis, de tangage, d&rsquo;acc\u00e9l\u00e9ration, de d\u00e9c\u00e9l\u00e9ration, les seuls compas et capteurs de vent ne suffisent pas \u00e0 obtenir un pilotage performant. Capteurs gyroscopiques, acc\u00e9l\u00e9rom\u00e8tres fournissent \u00e0 un calculateur des informations pr\u00e9cieuses pour faire tourner des algorithmes toujours plus sophistiqu\u00e9s cens\u00e9s tenir le bateau sur la trajectoire la plus droite possible, en \u00e9vitant les sorties de route.<br \/>Les vid\u00e9os de d\u00e9part au lof ou \u00e0 l&rsquo;abatt\u00e9e, bateau couch\u00e9, que Tanguy nous a envoy\u00e9es montrent que sur ce point, le debriefing de l&rsquo;arriv\u00e9e devrait \u00eatre riche d&rsquo;enseignements et d&rsquo;am\u00e9liorations indispensables en vue du Vend\u00e9e Globe<\/div>\n<div class=\"zone video\"><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"\/\/www.youtube.com\/embed\/nJiw7sMvwJQ\" frameborder=\"0\" allowfullscreen=\"\"><\/iframe>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>D\u00e9sormais sous la barre des milles \u00e0 parcourir, Initiatives-C\u0153ur surfe sur l&rsquo;Aliz\u00e9 pour gagner la Guadeloupe au plus vite.<\/p>\n","protected":false},"author":1,"featured_media":2679,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1374","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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