{"id":29456,"date":"2022-07-05T16:12:23","date_gmt":"2022-07-05T16:12:23","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9"},"modified":"2022-07-05T16:23:20","modified_gmt":"2022-07-05T16:23:20","slug":"voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9","title":{"rendered":"Voici Stargazer, l\u2019avion hypersonique qui volera \u00e0 Mach 9"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>Une entreprise a\u00e9rospatiale texane vient de pr\u00e9senter son concept d\u2019avion hypersonique Stargazer, qui transporterait les passagers \u00e0 plus de 50 kilom\u00e8tres d\u2019altitude. Avec une vitesse de croisi\u00e8re de Mach 9, le constructeur affirme qu\u2019il pourrait atteindre n\u2019importe quel point du globe en une heure.<\/p>\n<p>L\u2019avenir de l\u2019aviation commerciale sera-t-elle hypersonique ? C\u2019est en tout cas ce qu\u2019esp\u00e8re Venus Aerospace, une entreprise texane qui vient de pr\u00e9senter pour la premi\u00e8re fois son avion spatial hypersonique Stargazer. Selon le constructeur, l\u2019appareil sera capable d\u2019atteindre la vitesse de Mach 9 et de transporter des passagers n\u2019importe o\u00f9 dans le monde en une heure.<\/p>\n<p>Pour atteindre une telle vitesse, l\u2019avion volera \u00e0 tr\u00e8s haute altitude, soit pr\u00e8s de 52 kilom\u00e8tres (170.000 pieds). Stargazer utilisera des a\u00e9roports conventionnels, et devra donc voler \u00e0 des vitesses subsoniques pour le d\u00e9collage et l\u2019atterrissage. Ce n\u2019est qu\u2019une fois arriv\u00e9 en altitude qu\u2019il acc\u00e9l\u00e9rera pour atteindre Mach 9. L\u2019avion mesurera 45 m\u00e8tres de long pour une envergure de 30 m\u00e8tres, et pourra transporter jusqu\u2019\u00e0 12 personnes.<\/p>\n<p><b>Une empreinte carbone nulle<\/b><\/p>\n<p>Mach 9 signifie neuf fois la vitesse du son, qui varie selon la temp\u00e9rature et donc de l\u2019altitude. \u00c0 plus de 50 kilom\u00e8tres, Mach 9 correspond \u00e0 environ 9.500 km\/h. L\u2019\u00e9quipe a travaill\u00e9 avec la Nasa pour s\u2019assurer que le bang supersonique cr\u00e9\u00e9 \u00e0 une telle altitude ne serait pas audible depuis le sol. Venus Aerospace n\u2019a pas indiqu\u00e9 ce que le Stargazer utilisera comme de carburant, mais affirme que l\u2019empreinte carbone serait nulle.<\/p>\n<p>Toutefois, l\u2019annonce est \u00e0 prendre avec des pincettes. L\u2019appareil est encore au stade de concept, et la firme ne donne aucune d\u00e9lai pour un \u00e9ventuel prototype. De plus, la circonf\u00e9rence de la Terre \u00e9tant d\u2019environ 40.075 kilom\u00e8tres, il faudrait voyager \u00e0 au moins 20.000 km\/h pour atteindre n\u2019importe quel point du globe, une vitesse minimale qui augmente pour un avion qui voyage en altitude. Cette question ne semble toutefois pas inqui\u00e9ter les investisseurs, puisque Venus Aerospace a r\u00e9ussi \u00e0 obtenir un financement \u00e0 hauteur de plus de 33 millions de dollars.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <a href=\"https:\/\/www.africa-press.net\/senegal\">Senegal<\/a>, suivez <a href=\"https:\/\/www.africa-press.net\/\">Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Une entreprise a\u00e9rospatiale texane vient de pr\u00e9senter son concept d\u2019avion hypersonique Stargazer, qui transporterait les passagers \u00e0 plus de 50 kilom\u00e8tres d\u2019altitude. Avec une vitesse de croisi\u00e8re de Mach 9, le constructeur affirme qu\u2019il pourrait atteindre n\u2019importe quel point du globe en une heure. L\u2019avenir de l\u2019aviation commerciale sera-t-elle hypersonique ? C\u2019est [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":29455,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,11,10],"tags":[43,47,44],"class_list":["post-29456","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-homepage-french","category-toutes-les-actualites","tag-africa-press-2","tag-africa-press-senegal","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Voici Stargazer, l\u2019avion hypersonique qui volera \u00e0 Mach 9 - Senegal<\/title>\n<meta name=\"description\" content=\"Une entreprise a\u00e9rospatiale texane vient de pr\u00e9senter son concept d\u2019avion hypersonique Stargazer, qui transporterait les ...\" \/>\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.africa-press.net\/senegal\/toutes-les-actualites\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Voici Stargazer, l\u2019avion hypersonique qui volera \u00e0 Mach 9\" \/>\n<meta property=\"og:description\" content=\"Une entreprise a\u00e9rospatiale texane vient de pr\u00e9senter son concept d\u2019avion hypersonique Stargazer, qui transporterait les ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9\" \/>\n<meta property=\"og:site_name\" content=\"Senegal\" \/>\n<meta property=\"article:published_time\" content=\"2022-07-05T16:12:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-07-05T16:23:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2022\/07\/postQueueImg_2-62c4655f52600.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1556\" \/>\n\t<meta property=\"og:image:height\" content=\"972\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Voici Stargazer, l\u2019avion hypersonique qui volera \u00e0 Mach 9\",\"datePublished\":\"2022-07-05T16:12:23+00:00\",\"dateModified\":\"2022-07-05T16:23:20+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9\"},\"wordCount\":383,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2022\/07\/postQueueImg_2-62c4655f52600.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Senegal\",\"Senegal\"],\"articleSection\":[\"Divers\",\"homepage-french\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9\",\"url\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/voici-stargazer-lavion-hypersonique-qui-volera-a-mach-9\",\"name\":\"Voici Stargazer, l\u2019avion hypersonique qui volera \u00e0 Mach 9 - 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