Ce glossaire est rédigé pour une utilisation dans le cadre d’une compagnie aérienne virtuelle et de la simulation de vol au sein de Virtual Air Canada Airline. Il ne constitue pas une référence en aviation réelle.
Le système d’atterrissage aux instruments (ILS) est une aide à la navigation de précision basée au sol qui fournit un guidage horizontal et vertical aux pilotes effectuant une approche vers une piste. Il se compose de deux composants radio principaux : le localiseur, qui émet un faisceau étroit centré sur l’axe de piste pour fournir le guidage latéral, et le glide slope, qui émet un faisceau incliné (typiquement 3 degrés au-dessus de l’horizontale) pour définir la trajectoire de descente correcte. Les radiobalises - extérieure, intermédiaire et intérieure - étaient traditionnellement utilisées pour indiquer la distance par rapport au seuil, bien que le DME les ait largement remplacées dans les installations modernes. Lors du vol d’un ILS, le pilote suit les deux aiguilles de l’indicateur CDI/PFD en croix pour rester simultanément sur l’axe et le plan de descente.Les approches ILS sont classifiées en trois catégories basées sur la visibilité minimale et la hauteur de décision qu’elles prennent en charge. Un ILS de Catégorie I exige une hauteur de décision d’au moins 200 pieds au-dessus de la zone de toucher des roues et une portée visuelle de piste d’au moins 550 mètres. La Catégorie II réduit la hauteur de décision à aussi bas que 100 pieds avec un RVR de 300 mètres, nécessitant une qualification spéciale de l’équipage et un équipement d’aéronef. La Catégorie III englobe plusieurs sous-catégories qui peuvent permettre des approches à des hauteurs de décision très basses ou même nulles, utilisées pour les opérations d’atterrissage automatique dans des conditions de très faible visibilité. L’aéroport, l’aéronef et l’équipage doivent tous détenir les certifications appropriées pour les opérations Cat II et III.
Dans les opérations de la compagnie aérienne virtuelle
L’ILS est l’approche de précision la plus couramment simulée chez Virtual Air Canada Airline. SimBrief assigne des approches ILS par défaut sur de nombreuses routes, et le FMS sur la plupart des modules d’aéronefs peut être chargé avec la fréquence ILS, le cap et le plan de descente pour une approche entièrement automatisée ou pilotée manuellement. Comprendre les catégories ILS aide à configurer l’aéronef pour les arrivées en faible visibilité et aide les équipages à interpréter correctement les minimums sur les cartes d’approche lors des vols sur VATSIM.
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Il ne constitue pas une référence en aviation réelle.`]})}),`\n`,_jsx(_components.p,{children:`Le système d’atterrissage aux instruments (ILS) est une aide à la navigation de précision basée au sol qui fournit un guidage horizontal et vertical aux pilotes effectuant une approche vers une piste. Il se compose de deux composants radio principaux : le localiseur, qui émet un faisceau étroit centré sur l’axe de piste pour fournir le guidage latéral, et le glide slope, qui émet un faisceau incliné (typiquement 3 degrés au-dessus de l’horizontale) pour définir la trajectoire de descente correcte. Les radiobalises - extérieure, intermédiaire et intérieure - étaient traditionnellement utilisées pour indiquer la distance par rapport au seuil, bien que le DME les ait largement remplacées dans les installations modernes. 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