{"id":68842,"date":"2019-12-04T23:26:04","date_gmt":"2019-12-04T23:26:04","guid":{"rendered":"https:\/\/\/un-avion-hybride-a-decollage-vertical-pour-les-jo-2024\/"},"modified":"2019-12-04T23:26:04","modified_gmt":"2019-12-04T23:26:04","slug":"un-avion-hybride-a-decollage-vertical-pour-les-jo-2024","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/un-avion-hybride-a-decollage-vertical-pour-les-jo-2024\/","title":{"rendered":"Un avion hybride \u00e0 d\u00e9collage vertical pour les JO 2024"},"content":{"rendered":"<p>Les partenaires r\u00e9pondent ainsi au d\u00e9fi :&nbsp;comment d\u00e9coller et atterrir en \u00e9lectrique pour moins de nuisances sonores et moins d\u2019\u00e9missions de gaz \u00e0 effet de serre afin de mieux s\u2019int\u00e9grer localement dans le tissu urbain ; puis passer en croisi\u00e8re en propulsion thermique &#8211; une fois \u00e9loign\u00e9 de la ville &#8211; et profiter de la rapidit\u00e9 et de la port\u00e9e du rayon d&rsquo;action offert par le thermique ?<\/p>\n<p>Les a\u00e9ronefs \u00e0 d\u00e9collage et atterrissage verticaux (ADAV\/VTOL) se d\u00e9veloppent dans les m\u00e9gapoles. Toutefois ils pr\u00e9sentent des limites en termes d\u2019autonomie, de nuisances sonores et\/ou environnementales. Le concept de VTOL \u00e0 propulsion hybride cr\u00e9\u00e9 par Ascendance Flight Technologies se fonde sur le choix d\u2019un design simple : s\u00e9parer la propulsion verticale et la propulsion horizontale afin d\u2019avoir une transition plus ma\u00eetris\u00e9e de l\u2019a\u00e9ronef. Pour cela, la PME table sur une h\u00e9lice car\u00e9n\u00e9e performante et silencieuse pour la propulsion verticale dans les phases de d\u00e9collage et d\u2019atterrissage.<\/p>\n<p>Les deux parties ont construit un partenariat \u00ab Gagnant-Gagnant \u00bb sur la dur\u00e9e. A la demande de la PME, le D\u00e9partement A\u00e9rodynamique A\u00e9ro\u00e9lasticit\u00e9 Acoustique (DAAA) de l\u2019ONERA a d\u00e9j\u00e0 effectu\u00e9 des \u00e9tudes a\u00e9rodynamiques et a\u00e9ro acoustiques des propulseurs verticaux sur le prototype \u00e0 l&rsquo;\u00e9chelle 1.<br \/>\nObjectif : valider la faible empreinte sonore de l\u2019a\u00e9ronef sur les phases de d\u00e9collage et d\u2019atterrissage. Ascendance a pu ainsi b\u00e9n\u00e9ficier des capacit\u00e9s de mod\u00e9lisation de l\u2019ONERA &#8211; notamment pour le design de l\u2019h\u00e9lice &#8211; ainsi qu\u2019une batterie de tests sp\u00e9cifiques.<br \/>\nLe partenariat favorise l\u2019enrichissement mutuel et l\u2019\u00e9mulation entre les \u00e9quipes de l\u2019ONERA et Ascendance. Il est appel\u00e9 \u00e0 produire des r\u00e9sultats nouveaux \u00e0 partir du savoir-faire et des connaissances propres de l\u2019ONERA, ce qui permettra \u00e0 la PME de b\u00e9n\u00e9ficier d\u2019un avantage technologique par rapport \u00e0 ses concurrents.<\/p>\n<p><a href=\"http:\/\/www.ascendance-ft.com\/\">Ascendance<\/a><\/p>\n<p><a href=\"https:\/\/www.instituts-carnot.eu\/fr\">Institus Carnot<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dans le cadre de l\u2019action Carnot fili\u00e8re AirCar pilot\u00e9e, Ascendance Flight Technologie, soci\u00e9t\u00e9 fran\u00e7aise bas\u00e9e \u00e0 Issy les Moulineaux dans la r\u00e9gion parisienne et l&rsquo;ONERA collaborent pour la mise en service d\u2019un VTOL \u00e0 propulsion hybride pour les J.O de 2024 \u00e0 Paris<\/p>\n","protected":false},"author":11,"featured_media":68843,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"domains":[47],"ppma_author":[1143],"class_list":["post-68842","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Un avion hybride \u00e0 d\u00e9collage vertical pour les JO 2024 ...<\/title>\n<meta name=\"description\" content=\"Dans le cadre de l\u2019action Carnot fili\u00e8re AirCar pilot\u00e9e, Ascendance Flight Technologie, soci\u00e9t\u00e9 fran\u00e7aise bas\u00e9e \u00e0 Issy les Moulineaux dans la...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/68842\/\" \/>\n<meta property=\"og:locale\" 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