{"id":15489,"date":"2022-02-13T16:44:37","date_gmt":"2022-02-13T16:44:37","guid":{"rendered":"https:\/\/www.africa-press.net\/cameroun\/politique\/lappareil-hypersonique-de-mikhail-kokorich-l-elon-musk-russe-veut-transporter-du-fret-a-mach-15"},"modified":"2022-02-13T18:38:52","modified_gmt":"2022-02-13T18:38:52","slug":"lappareil-hypersonique-de-mikhail-kokorich-l-elon-musk-russe-veut-transporter-du-fret-a-mach-15","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/lappareil-hypersonique-de-mikhail-kokorich-l-elon-musk-russe-veut-transporter-du-fret-a-mach-15","title":{"rendered":"L’appareil hypersonique de Mikhail Kokorich, l’\u00ab Elon Musk russe \u00bb, veut transporter du fret \u00e0 Mach 15"},"content":{"rendered":"

Africa-Press – Cameroun. <\/strong><\/span>Le service de presse de Destinus le pr\u00e9sente comme un \u00abElon Musk russe\u00bb, et l’ambition folle de l’\u00abHyperplane\u00bb de Mikhail Kokorich, d\u00e9cortiqu\u00e9e par New Atlas, pourrait effectivement \u00eatre le fruit de l’imagination sans limite du patron de SpaceX.<\/p>\n

Visant rien de moins qu’une r\u00e9volution du secteur du transport de marchandises, l’entrepreneur venu de l’Est souhaite ainsi d\u00e9velopper un a\u00e9ronef pleinement autonome aliment\u00e9 \u00e0 l’hydrog\u00e8ne, pr\u00e9sent\u00e9 comme \u00abz\u00e9ro \u00e9mission\u00bb et capable de transporter du fret \u00e0 Mach 15 d’un continent \u00e0 l’autre.<\/p>\n

L’engin, est-il expliqu\u00e9, \u00abcombine les avanc\u00e9es technologiques d’un vaisseau spatial et la physique simple des planeurs, pour cr\u00e9er un v\u00e9hicule r\u00e9pondant aux exigences d’un monde hyperconnect\u00e9\u00bb. Il pourrait d\u00e9coller normalement de la piste d’un a\u00e9roport, acc\u00e9l\u00e9rer tranquillement jusqu’\u00e0 la c\u00f4te, o\u00f9 un moteur de fus\u00e9e le catapulterait jusqu’\u00e0 la m\u00e9sosph\u00e8re, zone de tr\u00e8s haute altitude entre l’atmosph\u00e8re et l’espace o\u00f9 la r\u00e9sistance de l’air est tr\u00e8s r\u00e9duite.<\/p>\n

\u00c0 cette altitude, il pourrait atteindre sa vitesse de croisi\u00e8re de plus de 18.000 kilom\u00e8tres par heure, avant de ralentir pour venir se poser comme une fleur, l’instant d’apr\u00e8s ou presque, \u00e0 quelques dizaines de milliers de kilom\u00e8tres de l\u00e0.<\/p>\n

\u00abLa logique est simple. Si vous souhaitez d\u00e9placer quelque chose d’un endroit \u00e0 un autre endroit sur Terre, vous devez d\u00e9penser de l’\u00e9nergie dans plusieurs directions\u00bb, a expliqu\u00e9 Kokorich lors d’une interview. Ces d\u00e9penses sont consacr\u00e9es \u00e0 s’arracher \u00e0 la gravit\u00e9 terrestre, \u00e0 la friction avec l’air, et enfin \u00e0 l’\u00e9nergie cin\u00e9tique et la vitesse.<\/p>\n

\u00abOui, nous avons besoin de faire acc\u00e9l\u00e9rer notre v\u00e9hicule \u00e0 une tr\u00e8s haute v\u00e9locit\u00e9 avec un moteur de fus\u00e9e, poursuit-il. Donc nous d\u00e9pensons plus d’\u00e9nergie dans l’acc\u00e9l\u00e9ration. Mais parce que nous volons dix fois plus vite, et parce que nous volons \u00e0 de telles altitudes, o\u00f9 il y a dix fois moins d’air qu’\u00e0 33.000 pieds, nos pertes li\u00e9es \u00e0 la gravit\u00e9 et celles li\u00e9es \u00e0 l’a\u00e9rodynamique sont extr\u00eamement faibles. En fait, on peut transporter quelque chose d’un continent \u00e0 l’autre pour moins cher qu’avec des avions classiques. \u00c7a semble \u00e9trange, mais \u00e7a ne l’est pas: nous d\u00e9pensons au final moins d’\u00e9nergie pour le faire.\u00bb<\/p>\n

D’accord, mais…<\/b><\/p>\n

Pour r\u00e9ussir ce qu’elle d\u00e9crit elle-m\u00eame comme un gros pari technique et commercial, Destinus devra trouver un syst\u00e8me de refroidissement de l’hydrog\u00e8ne capable d’emp\u00eacher l’a\u00e9ronef de fondre sous la pression et la chaleur, ainsi qu’un moteur-fus\u00e9e qui puisse \u00eatre r\u00e9utilis\u00e9 presque aussi facilement et longuement qu’un r\u00e9acteur classique d’avion.<\/p>\n

Et c’est peut-\u00eatre l\u00e0 que le b\u00e2t blesse, explique New Atlas. Si la start-up a d\u00e9j\u00e0 fait voler (\u00e0 tr\u00e8s faible altitude et tr\u00e8s basse vitesse) un prototype nomm\u00e9 \u00abJungfrau\u00bb, le d\u00e9veloppement de la machine finale devra reposer sur des technologies (moteur-fus\u00e9e et hydrog\u00e8ne) qui, aujourd’hui, semblent hors de port\u00e9e ou extr\u00eamement complexes \u00e0 d\u00e9velopper et \u00e0 commercialiser.<\/p>\n

Enfin, note encore le site, la personnalit\u00e9 m\u00eame de Mikhail Kokorich pose question. S’il a quelques r\u00e9ussites entrepreneuriales \u00e0 son actif, comme le fabricant russe de mini-satellites Dauria Aerospace, Kokorich est aussi impliqu\u00e9 dans d’autres affaires suffisamment troubles et louches pour attirer l’attention de la justice am\u00e9ricaine.<\/p>\n

Enfin, la nature hypersonique m\u00eame de l’engin que souhaite concevoir Destinus pourrait poser probl\u00e8me. Si transporter du fret \u00e0 une telle vitesse peut constituer un fantasme de logisticien, un tel appareil volant \u00e0 une telle vitesse se transformerait en une arme potentiellement d\u00e9vastatrice, m\u00eame sans charge militaire. Nul doute que les gouvernements du monde entier pourraient en prendre ombrage.<\/p>\n

Pour plus d’informations et d’analyses sur la Cameroun<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Cameroun. Le service de presse de Destinus le pr\u00e9sente comme un \u00abElon Musk russe\u00bb, et l’ambition folle de l’\u00abHyperplane\u00bb de Mikhail Kokorich, d\u00e9cortiqu\u00e9e par New Atlas, pourrait effectivement \u00eatre le fruit de l’imagination sans limite du patron de SpaceX. Visant rien de moins qu’une r\u00e9volution du secteur du transport de marchandises, l’entrepreneur venu […]<\/p>\n","protected":false},"author":82,"featured_media":15488,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,11,10],"tags":[36,50,49],"class_list":["post-15489","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-homepage-french","category-toutes-les-actualites","tag-africa-press","tag-africa-press-cameroun","tag-cameroun"],"yoast_head":"\nL'appareil hypersonique de Mikhail Kokorich, l'\u00ab Elon Musk russe \u00bb, veut transporter du fret \u00e0 Mach 15 - Cameroun<\/title>\n<meta name=\"description\" content=\"Le service de presse de Destinus le pr\u00e9sente comme un \u00abElon Musk russe\u00bb, et l'ambition folle de l'\u00abHyperplane\u00bb de Mikhai ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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