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 centre de gravité (CG) est le point par lequel la masse totale d’un aéronef agit, représentant le point d’équilibre de la masse de l’aéronef sur l’axe longitudinal (avant-arrière). La position du CG est exprimée en pourcentage de la corde aérodynamique moyenne (MAC) - la corde de référence de l’aile - ou en distance par rapport à un point de référence fixe. Pour un vol sécuritaire, le CG doit rester dans les limites avant et arrière définies dans le manuel de vol de l’aéronef durant toutes les phases de vol, du décollage à l’atterrissage, y compris lorsque le carburant brûle et que la distribution de masse change.Un CG avant nécessite plus de compensation en cabré pour maintenir le vol en palier, augmentant la traînée et la consommation mais améliorant généralement la stabilité en tangage. Un CG arrière réduit la marge de stabilité mais diminue légèrement la traînée de compensation. Les variations de CG en vol sont dues à la consommation de carburant des réservoirs d’aile et centraux; les compagnies aériennes planifient soigneusement les séquences de consommation pour s’assurer que le CG reste dans les limites tout au long du vol.
Dans les opérations de la compagnie aérienne virtuelle
Chez Virtual Air Canada Airline, l’OFP de SimBrief et les feuilles de chargement spécifiques à l’aéronef fournissent les informations de CG et de compensation qui doivent être entrées dans le FMS ou le système de compensation avant le départ. Dans la plupart des aéronefs en module, la page de masse et centrage du CDU ou de l’EFB affichera le CG calculé et permettra la vérification par rapport aux limites. S’assurer que le CG est correctement réglé avant le départ produit des calculs de performance au décollage précis et une sensation de compensation réaliste durant la montée initiale.
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Il ne constitue pas une référence en aviation réelle.`]})}),`\n`,_jsx(_components.p,{children:`Le centre de gravité (CG) est le point par lequel la masse totale d’un aéronef agit, représentant le point d’équilibre de la masse de l’aéronef sur l’axe longitudinal (avant-arrière). La position du CG est exprimée en pourcentage de la corde aérodynamique moyenne (MAC) - la corde de référence de l’aile - ou en distance par rapport à un point de référence fixe. Pour un vol sécuritaire, le CG doit rester dans les limites avant et arrière définies dans le manuel de vol de l’aéronef durant toutes les phases de vol, du décollage à l’atterrissage, y compris lorsque le carburant brûle et que la distribution de masse change.`}),`\n`,_jsx(_components.p,{children:`Un CG avant nécessite plus de compensation en cabré pour maintenir le vol en palier, augmentant la traînée et la consommation mais améliorant généralement la stabilité en tangage. 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