{"id":4905,"date":"2025-12-06T13:55:17","date_gmt":"2025-12-06T12:55:17","guid":{"rendered":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/?p=4905"},"modified":"2025-12-06T14:08:04","modified_gmt":"2025-12-06T13:08:04","slug":"le-premier-vol-dun-avion-tout-en-metal","status":"publish","type":"post","link":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/le-premier-vol-dun-avion-tout-en-metal\/","title":{"rendered":"LE PREMIER VOL D&rsquo;UN AVION ENTI\u00c8REMENT M\u00c9TALLIQUE"},"content":{"rendered":"\n<p>Le 12 d\u00e9cembre 1915 est une date importante dans l&rsquo;histoire de l&rsquo;a\u00e9ronautique. En ce jour le Junkers J1, premier avion enti\u00e8rement m\u00e9tallique, r\u00e9ussit \u00e0 voler. Cet appareil r\u00e9volutionnaire est l&rsquo;oeuvre de l&rsquo;Allemand Hugo Junkers. Fabriqu\u00e9 en seulement 3 mois le J 1, dont le rev\u00eatement \u00e9tait constitu\u00e9 de t\u00f4les d&rsquo;acier de 0,1 \u00e0 0,2 mm d&rsquo;\u00e9paisseur \u00e9tait cependant trop lourd (masse \u00e0 vide de 937\u00a0kg contre seulement 400\u00a0kg pour e Fokker E. III) et ne fut pas command\u00e9 en s\u00e9rie par les services officiels. Un deuxi\u00e8me prototype fut cependant command\u00e9 qui devint le Junkers J2.<\/p>\n\n\n\n<p>Lors de son premier vol, l&rsquo;appareil fut endommag\u00e9 \u00e0 l&rsquo;atterrissage. Le seul exemplaire construit fut remis en 1926 au Deutsches Museum de Munich. Il y fut d\u00e9truit lors d&rsquo;un bombardement alli\u00e9 en 1944.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"355\" height=\"142\" src=\"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-content\/uploads\/J1-1.jpg\" alt=\"\" class=\"wp-image-4911\" style=\"width:855px;height:auto\" srcset=\"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-content\/uploads\/J1-1.jpg 355w, https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-content\/uploads\/J1-1-300x120.jpg 300w\" sizes=\"(max-width: 355px) 100vw, 355px\" \/><\/figure><\/div>","protected":false},"excerpt":{"rendered":"<p>Le 12 d\u00e9cembre 1915 est une date importante dans l&rsquo;histoire de l&rsquo;a\u00e9ronautique. En ce jour le Junkers J1, premier avion enti\u00e8rement m\u00e9tallique, r\u00e9ussit \u00e0 voler. Cet&#8230;<\/p>\n","protected":false},"author":21,"featured_media":4914,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[111],"tags":[],"class_list":["post-4905","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites"],"_links":{"self":[{"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/posts\/4905"}],"collection":[{"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/users\/21"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/comments?post=4905"}],"version-history":[{"count":3,"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/posts\/4905\/revisions"}],"predecessor-version":[{"id":4913,"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/posts\/4905\/revisions\/4913"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/media\/4914"}],"wp:attachment":[{"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/media?parent=4905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/categories?post=4905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.ac-nancy-metz.fr\/ciras\/wp-json\/wp\/v2\/tags?post=4905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}