{"id":2013,"date":"2025-08-18T11:29:41","date_gmt":"2025-08-18T09:29:41","guid":{"rendered":"https:\/\/acriv.org\/WP\/?page_id=2013"},"modified":"2025-08-18T11:29:41","modified_gmt":"2025-08-18T09:29:41","slug":"%f0%9f%9b%a9%ef%b8%8fla-navigation","status":"publish","type":"page","link":"https:\/\/acriv.org\/WP\/%f0%9f%9b%a9%ef%b8%8fla-navigation\/","title":{"rendered":"\ud83d\udee9\ufe0fLA NAVIGATION"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"684\" src=\"https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/08\/PPL-Navigation-1024x684-1.webp\" alt=\"\" class=\"wp-image-2014\" style=\"width:283px;height:auto\"\/><\/figure>\n<\/div>\n\n\n<p>L<strong>a navigation<\/strong> consiste \u00e0 d\u00e9terminer et suivre sa position pour aller d\u2019un point A \u00e0 un point B. On distingue plusieurs m\u00e9thodes, qui peuvent se combiner selon la technologie et la situation. <\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\uddfa\ufe0f 1. Navigation \u00e0 l\u2019estime (Dead Reckoning \/ DR)<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Principe<\/strong> : calculer sa position en fonction de <strong>vitesse, cap, temps et d\u00e9rive<\/strong>.<\/li>\n\n\n\n<li><strong>Outils<\/strong> : carte, compas, chronom\u00e8tre, calculs simples.<\/li>\n\n\n\n<li><strong>Avantages<\/strong> : ind\u00e9pendant de toute radio ou GPS.<\/li>\n\n\n\n<li><strong>Limites<\/strong> : erreurs cumulatives (erreur de cap, vent non estim\u00e9, variation de vitesse).<\/li>\n\n\n\n<li><strong>Exemple<\/strong> : un pilote mesure 120 kt sur un cap de 045\u00b0 pendant 30 min \u2192 calcule sa position estim\u00e9e.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udce1 2. Radionavigation<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Types principaux<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">a) VOR (VHF Omnidirectional Range)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Station terrestre \u00e9mettant sur VHF (108\u2013117,95 MHz).<\/li>\n\n\n\n<li>Permet de conna\u00eetre <strong>la direction \u00e0 ou de la station<\/strong> (radial).<\/li>\n\n\n\n<li>Avantages : pr\u00e9cis, fiable en journ\u00e9e et nuit.<\/li>\n\n\n\n<li>Limites : couverture limit\u00e9e (ligne de vue), erreurs possibles en altitude basse ou relief \u00e9lev\u00e9.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">b) DME (Distance Measuring Equipment)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Souvent coupl\u00e9 au VOR : mesure la <strong>distance \u00e0 la station<\/strong>.<\/li>\n\n\n\n<li>Permet de savoir \u00ab je suis \u00e0 25 NM de la station \u00bb.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">c) NDB \/ ADF (Non-Directional Beacon \/ Automatic Direction Finder)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Station radio \u00e9mettant sur basse ou moyenne fr\u00e9quence (MF\/LF).<\/li>\n\n\n\n<li>L\u2019avion capte le signal et indique la <strong>direction de la station<\/strong>.<\/li>\n\n\n\n<li>Limites : sensible aux perturbations m\u00e9t\u00e9o, aux lignes \u00e9lectriques, aux reliefs.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">d) ILS (Instrument Landing System)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Radionavigation pour approche de pr\u00e9cision.<\/li>\n\n\n\n<li>Compos\u00e9 de :\n<ul class=\"wp-block-list\">\n<li><strong>Localizer<\/strong> \u2192 cap d\u2019alignement piste.<\/li>\n\n\n\n<li><strong>Glide Slope<\/strong> \u2192 plan de descente.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Obligatoire pour atterrissages en faible visibilit\u00e9.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83d\udef0\ufe0f 3. Navigation par satellite \/ GPS<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Principe<\/strong> : l\u2019avion calcule sa position en fonction des signaux re\u00e7us de satellites.<\/li>\n\n\n\n<li><strong>Avantages<\/strong> : pr\u00e9cision &lt;10 m, partout dans le monde.<\/li>\n\n\n\n<li><strong>Types<\/strong> : GPS classique, GNSS (GLONASS, Galileo).<\/li>\n\n\n\n<li><strong>Limitations<\/strong> : panne possible, brouillage volontaire ou accidentel.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u270f\ufe0f 4. Navigation par trac\u00e9 sur carte (Pilotage visuel \/ Pilotage \u00e0 vue)<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Principe<\/strong> : suivre le terrain et rep\u00e8res visibles (rivi\u00e8res, routes, villes, reliefs).<\/li>\n\n\n\n<li><strong>Outils<\/strong> : carte a\u00e9ronautique, r\u00e8gle, compas de carte.<\/li>\n\n\n\n<li><strong>Avantages<\/strong> : simple, fiable en VFR.<\/li>\n\n\n\n<li><strong>Limites<\/strong> : impossible de nuit ou en mauvais temps, erreurs d\u2019identification de rep\u00e8res.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83e\udde9 5. Combinaisons possibles<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>VFR classique<\/strong> : pilotage \u00e0 vue + navigation \u00e0 l\u2019estime + rep\u00e8res cartes.<\/li>\n\n\n\n<li><strong>IFR<\/strong> : radionavigation (VOR, DME, ILS) + GPS pour pr\u00e9cision.<\/li>\n\n\n\n<li><strong>Vol long-courrier moderne<\/strong> : GPS + plan de vol IFR + radionavigation comme secours.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>La navigation consiste \u00e0 d\u00e9terminer et suivre sa position pour aller d\u2019un point A \u00e0 un point B. On distingue plusieurs m\u00e9thodes, qui peuvent se combiner selon la technologie et la situation. \ud83d\uddfa\ufe0f 1. Navigation \u00e0 l\u2019estime (Dead Reckoning \/ DR) \ud83d\udce1 2. Radionavigation Types principaux a) VOR (VHF Omnidirectional Range) b) DME (Distance Measuring Equipment) c) NDB \/ ADF<\/p>\n<p><a class=\"more-link\" href=\"https:\/\/acriv.org\/WP\/%f0%9f%9b%a9%ef%b8%8fla-navigation\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2013","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages\/2013","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/comments?post=2013"}],"version-history":[{"count":1,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages\/2013\/revisions"}],"predecessor-version":[{"id":2015,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages\/2013\/revisions\/2015"}],"wp:attachment":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/media?parent=2013"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}