{"id":834,"date":"2021-12-01T20:21:03","date_gmt":"2021-12-01T19:21:03","guid":{"rendered":"https:\/\/anclademia.com\/?p=834"},"modified":"2022-06-08T15:23:35","modified_gmt":"2022-06-08T14:23:35","slug":"instructions","status":"publish","type":"post","link":"https:\/\/anclademia.com\/fr\/blog\/rumbos\/","title":{"rendered":"D\u00e9finition des rubriques"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Cours vrai, magn\u00e9tique et aiguille\u00a0: d\u00e9finitions<\/h2>\n\n\n\n<p>Les rubriques sont d\u00e9finies dans&nbsp;<strong><em>fonction du m\u00e9ridien pris comme origine&nbsp;<\/em><\/strong>(vrai, magn\u00e9tique ou aiguille) et la ligne proue-poupe du navire.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong><em>VRAI cours&nbsp;<\/em>(Rv)<\/strong>: il&nbsp;<strong><em>angle form\u00e9 par le m\u00e9ridien vrai du lieu et la ligne \u00e9trave-poupe<\/em><\/strong>.<\/li><li><strong><em>Cours MAGN\u00c9TIQUE&nbsp;<\/em>(Rm):&nbsp;<\/strong>il&nbsp;<strong><em>angle form\u00e9 par le m\u00e9ridien magn\u00e9tique du lieu et la ligne \u00e9trave-poupe<\/em><\/strong>.<\/li><li><strong><em>Cours AIGUILLE&nbsp;<\/em>(R\u00e2)<\/strong>: il&nbsp;<strong><em>angle form\u00e9 par le m\u00e9ridien de l&#039;aiguille&nbsp;<\/em><\/strong>(d\u00e9termin\u00e9 par l&#039;orientation de l&#039;aiguille et diff\u00e8re du magn\u00e9tique en raison des mat\u00e9riaux magn\u00e9tiques du navire)&nbsp;<strong><em>et ligne de poupe avant<\/em><\/strong>.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Relation entre eux<\/h2>\n\n\n\n<p>Si l&#039;on regarde la figure 9.11, on peut en d\u00e9duire que : Rv = Ra + \u0394 + dm, et puisque Ct = dm + \u0394.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Rv = Ra + Ct<\/strong><\/li><li><strong>Ra = Rv \u2013 Ct<\/strong><\/li><\/ul>\n\n\n\n<p>De ce m\u00eame chiffre, il est \u00e9galement facile de d\u00e9duire que :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Rm = Ra + \u0394 Rm = Rv \u2013 dm<\/strong><\/li><\/ul>\n\n\n\n<div class=\"btn-groc-cta\"><br><strong>\u00c7a t&#039;int\u00e9resse: <\/strong><a href=\"https:\/\/anclademia.com\/fr\/blog\/aiguille-nautique\/\"> Aiguille nautique <\/a><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Fa\u00e7ons de mesurer le cap quadrantal et circulaire<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><strong><em>Circulaires<\/em>:&nbsp;<\/strong>depuis&nbsp;<strong><em>0o \u00e0 360o&nbsp;<\/em><\/strong>et dans le sens des aiguilles d&#039;une montre. Sa valeur est toujours positive.<\/li><li><strong><em>Quadrants (ou quadrants)<\/em>:&nbsp;<\/strong>diviser la circonf\u00e9rence en&nbsp;<strong><em>quatre quadrants<\/em><\/strong>.<\/li><\/ul>\n\n\n\n<p>Pour \u00e9viter toute confusion, les instructions doivent \u00eatre dites ou&nbsp;<strong><em>\u00e9tat en chiffres<\/em><\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">De la valeur quadrantale \u00e0 la circulaire<\/h2>\n\n\n\n<p>De&nbsp;<strong><em>degr\u00e9s en quadrants&nbsp;<\/em><\/strong>soit&nbsp;<strong>&quot;<em>quadrants<\/em>\u00bb&nbsp;<\/strong>\u00e0&nbsp;<strong>degr\u00e9s circulaires\u00a0:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Entre&nbsp;<strong><em>000-090&nbsp;<\/em><\/strong>\u2013 appartiennent au 1er quadrant (NE) et correspondent au&nbsp;<strong><em>m\u00eame nombre de dipl\u00f4mes<\/em><\/strong><\/li><li>Entre&nbsp;<strong><em>090-180&nbsp;<\/em><\/strong>\u2013 appartiennent au 2\u00e8me quadrant (SE) \u2013 Se&nbsp;<strong><em>soustraire de 180o<\/em><\/strong><\/li><li>Entre&nbsp;<strong><em>180-270&nbsp;<\/em><\/strong>\u2013 appartiennent au 3\u00e8me quadrant (SW) \u2013 Ils&nbsp;<strong><em>180o reste<\/em><\/strong><\/li><li>Entre&nbsp;<strong><em>270-360&nbsp;<\/em><\/strong>\u2013 appartiennent au 4\u00e8me quadrant (NW) \u2013 Ils&nbsp;<strong><em>soustraire de 360o<\/em><\/strong><\/li><\/ul>\n\n\n\n<p><strong><em>Exemples\u00a0:<\/em><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong><em>N45oE = 045o&nbsp;<\/em><\/strong><em>(Premier quadrant).<\/em><\/li><li><strong><em>S10oE =&nbsp;<\/em><\/strong><em>180o \u2013 45o =&nbsp;<\/em><strong><em>135\u00e8me&nbsp;<\/em><\/strong><em>(Deuxi\u00e8me quadrant)<\/em>.<\/li><li><strong><em>S10oW =&nbsp;<\/em><\/strong><em>180o + 45o =&nbsp;<\/em><strong><em>225e&nbsp;<\/em><\/strong><em>(Troisi\u00e8me quadrant)<\/em><\/li><li><strong><em>N45oW =&nbsp;<\/em><\/strong><em>360o \u2013 45o =&nbsp;<\/em><strong><em>315e&nbsp;<\/em><\/strong><em>(Quatri\u00e8me quadrant)<\/em>.<\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>Cap vrai, magn\u00e9tique et aiguille : D\u00e9finitions Les caps sont d\u00e9finis en fonction du m\u00e9ridien pris comme origine (vrai, magn\u00e9tique ou aiguille) et de la ligne proue-poupe du navire. VRAI Cap (Rv) : l&#039;angle form\u00e9 par le m\u00e9ridien vrai du lieu et la ligne \u00e9trave-poupe. Cap MAGN\u00c9TIQUE (Rm) : l&#039;angle form\u00e9 par le m\u00e9ridien magn\u00e9tique du lieu et la ligne avant\u2026 <a title=\"D\u00e9finition des rubriques\" class=\"read-more\" href=\"https:\/\/anclademia.com\/fr\/blog\/rumbos\/\" aria-label=\"En savoir plus sur la d\u00e9finition des directions\">Lire la suite<\/a><\/p>","protected":false},"author":1,"featured_media":14129,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[69],"tags":[],"class_list":["post-834","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-navegacion"],"jetpack_featured_media_url":"https:\/\/anclademia.com\/wp-content\/uploads\/2021\/12\/Rumbo.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/anclademia.com\/fr\/wp-json\/wp\/v2\/posts\/834","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/anclademia.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/anclademia.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/anclademia.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/anclademia.com\/fr\/wp-json\/wp\/v2\/comments?post=834"}],"version-history":[{"count":0,"href":"https:\/\/anclademia.com\/fr\/wp-json\/wp\/v2\/posts\/834\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/anclademia.com\/fr\/wp-json\/wp\/v2\/media\/14129"}],"wp:attachment":[{"href":"https:\/\/anclademia.com\/fr\/wp-json\/wp\/v2\/media?parent=834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/anclademia.com\/fr\/wp-json\/wp\/v2\/categories?post=834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/anclademia.com\/fr\/wp-json\/wp\/v2\/tags?post=834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}