{"id":15200993,"date":"2026-08-22T15:37:37","date_gmt":"2026-08-22T13:37:37","guid":{"rendered":"https:\/\/migflug.com\/jetflights\/boeing-747sp-special-performance-record-jumbo\/"},"modified":"2026-08-22T15:56:41","modified_gmt":"2026-08-22T13:56:41","slug":"boeing-747sp-record-de-performance-special","status":"publish","type":"post","link":"https:\/\/migflug.com\/afterburner\/fr\/boeing-747sp-special-performance-record-jumbo\/","title":{"rendered":"Le Stubby Jumbo qui a fait le tour du monde"},"content":{"rendered":"<style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style>\r\n\r\n<p>Boeing prit sa cr\u00e9ation la plus c\u00e9l\u00e8bre, le puissant 747 \u201c Jumbo Jet \u201d, et commit un acte presque sacril\u00e8ge\u00a0: il en retira pr\u00e8s de 15 m\u00e8tres en son centre. Le r\u00e9sultat fut un jumbo trapu aux proportions \u00e9tranges, ressemblant \u00e0 un 747 pris dans un miroir d\u00e9formant, capable de voler plus loin que n\u2019importe quel avion de ligne de son \u00e9poque. Il s\u2019agissait du Boeing 747SP, dont l\u2019acronyme signifiait pr\u00e9cis\u00e9ment ce qu\u2019il offrait\u00a0: Performances Sp\u00e9ciales.<\/p>\r\n\r\n<p>Plus l\u00e9ger et dot\u00e9 de jambes plus longues que son grand fr\u00e8re, le petit jumbo a \u00e9tabli des records autour du monde, ouvert des routes sans escale impossibles et termin\u00e9 sa carri\u00e8re en transportant un t\u00e9lescope aux confins du ciel.<\/p>\r\n\r\n\r\n<div style=\"background:#f5f5f5;padding:20px;border-radius:8px;margin:24px 0\"><p style=\"margin:0 0 10px;font-weight:700;font-size:18px\">Informations cl\u00e9s : Boeing 747SP<\/p><ul style=\"margin:0;padding-left:20px;line-height:1.8\"><li><strong>Quoi:<\/strong> Un Boeing 747 raccourci et \u00e0 tr\u00e8s long rayon d&#039;action<\/li><li><strong>Raccourci par :<\/strong> Environ 14 m\u00e8tres (47 pieds) contre le 747-100<\/li><li><strong>Gamme:<\/strong> Environ 7 000 miles<\/li><li><strong>En service :<\/strong> 1976, avec Pan Am<\/li><li><strong>Construit:<\/strong> Seulement 45<\/li><li><strong>Seconde carri\u00e8re :<\/strong> Le t\u00e9lescope volant SOFIA de la NASA<\/li><\/ul><\/div>\r\n\r\n\r\n<h2 style=\"padding-top:22px\">Spectacle sp\u00e9cial<\/h2>\r\n\r\n<p>Le 747SP est n\u00e9 d&#039;un r\u00eave bien pr\u00e9cis. Au milieu des ann\u00e9es 1970, Pan Am souhaitait assurer une liaison sans escale entre New York et Tokyo, deux des villes les plus fr\u00e9quent\u00e9es au monde, mais aucun gros-porteur ne pouvait y parvenir \u00e0 pleine charge. La solution de Boeing\u00a0? All\u00e9ger le fuselage du 747 d&#039;environ 14 m\u00e8tres, r\u00e9duisant ainsi son poids et augmentant sa capacit\u00e9 de carburant, puis lui ajouter un empennage plus haut pour une meilleure stabilit\u00e9. Cet avion plus court et plus l\u00e9ger pouvait transporter environ 233 passagers sur une distance d&#039;environ 11\u00a0265 kilom\u00e8tres.<\/p>\r\n\r\n\r\n<div style=\"background:#f8f9fa;border-left:4px solid #1565c0;padding:20px 22px;margin:18px 0 24px;border-radius:0 8px 8px 0;font-size:16px;line-height:1.7;display:flex;gap:20px;align-items:flex-start\"><div><em>\u201c Voler sans escale, \u00e0 pleine charge, entre New York et Tokyo, les deux plus grandes m\u00e9tropoles du monde. \u201d<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Pan Am<\/strong> \u2014 L&#039;exigence de la compagnie a\u00e9rienne qui a conduit au 747SP<\/div><\/div><\/div>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img data-opt-id=65782731  fetchpriority=\"high\" decoding=\"async\" class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" width=\"1024\" src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:0e0_.b970\/w:auto\/h:auto\/q:mauto\/ig:avif\/https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/08\/boeing-747sp-jumbo-jet.jpg\" alt=\"Boeing 747SP, gros porteur\" style=\"width:100%;height:auto;max-width:100%;display:block;border-radius:6px\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">Le Boeing 747SP\u00a0: plus court, plus l\u00e9ger et dot\u00e9 d\u2019une plus grande autonomie que le jumbo standard, avec un profil trapu caract\u00e9ristique. Photo\u00a0: Wikimedia Commons.<\/figcaption><\/figure>\r\n\r\n\r\n\r\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/dBTadjNx-i0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;border-radius:8px\" allowfullscreen><\/iframe><\/div>\r\n\r\n\r\n<h2 style=\"padding-top:22px\">Disques du monde entier<\/h2>\r\n\r\n<p>Le petit jumbo n&#039;a pas tard\u00e9 \u00e0 r\u00e9\u00e9crire l&#039;histoire. En mars 1976, un 747SP de South African Airways a effectu\u00e9 un vol sans escale de Seattle au Cap, soit plus de 16\u00a0000 kilom\u00e8tres. Quelques semaines plus tard, le Clipper Liberty Bell de Pan Am a fait le tour du monde en environ 46 heures, et en 1977, un autre SP a r\u00e9alis\u00e9 un tour du monde polaire. Pendant quelques ann\u00e9es, si l&#039;on voulait traverser les plus grandes distances sans escale, le 747SP \u00e9tait le seul avion \u00e0 r\u00e9action capable de le faire.<\/p>\r\n\r\n<p>Son r\u00e8gne fut bref. Seuls 45 exemplaires furent construits, et avec l&#039;arriv\u00e9e de bimoteurs long-courriers plus performants, ce petit paquebot gourmand en carburant, dot\u00e9 de quatre moteurs, perdit de son utilit\u00e9. Mais son histoire n&#039;\u00e9tait pas termin\u00e9e.<\/p>\r\n\r\n\r\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/739xXcg3pB0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;border-radius:8px\" allowfullscreen><\/iframe><\/div>\r\n\r\n\r\n<h2 style=\"padding-top:22px\">De l&#039;avion de ligne \u00e0 l&#039;observatoire<\/h2>\r\n\r\n<p>Un 747SP a connu une seconde vie des plus extraordinaires. Livr\u00e9 initialement \u00e0 Pan Am et baptis\u00e9 Clipper Lindbergh, il a \u00e9t\u00e9 transform\u00e9 par la NASA et l&#039;agence spatiale allemande en SOFIA, l&#039;Observatoire stratosph\u00e9rique pour l&#039;astronomie infrarouge. Une immense porte situ\u00e9e \u00e0 l&#039;arri\u00e8re du fuselage s&#039;ouvrait en vol pour r\u00e9v\u00e9ler un t\u00e9lescope r\u00e9flecteur de 17 tonnes, permettant \u00e0 l&#039;avion de voler au-dessus de 99 % de la vapeur d&#039;eau qui bloque la lumi\u00e8re infrarouge provenant du sol. Pendant huit ans, il a \u00e9t\u00e9 le plus grand t\u00e9lescope volant au monde, jusqu&#039;\u00e0 sa mise hors service par la NASA en 2022.<\/p>\r\n\r\n\r\n<div style=\"background:#f8f9fa;border-left:4px solid #5C91FF;padding:20px 22px;margin:18px 0 24px;border-radius:0 8px 8px 0;font-size:16px;line-height:1.7;display:flex;gap:20px;align-items:flex-start\"><div><em>\u201c De l\u2019approfondissement de nos connaissances sur l\u2019eau sur la Lune \u00e0 la r\u00e9v\u00e9lation des forces invisibles des champs magn\u00e9tiques \u00e0 l\u2019\u00e9chelle cosmique, rien de tout cela n\u2019aurait \u00e9t\u00e9 possible sans les centaines de personnes qui ont apport\u00e9 leur expertise \u00e0 la mission SOFIA. \u201d<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Naseem Rangwala<\/strong> \u2014 Chercheur scientifique du projet SOFIA, Centre de recherche Ames de la NASA<\/div><\/div><\/div>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img data-opt-id=2099532917  fetchpriority=\"high\" decoding=\"async\" class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" width=\"1024\" src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:0e0_.b970\/w:auto\/h:auto\/q:mauto\/ig:avif\/https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/08\/sofia-boeing-747sp-nasa-observatory.jpg\" alt=\"SOFIA Boeing 747SP Observatoire volant\" style=\"width:100%;height:auto;max-width:100%;display:block;border-radius:6px\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">Le SOFIA 747SP, un ancien jumbo de Pan Am transform\u00e9 en t\u00e9lescope infrarouge volant pour la NASA. Photo\u00a0: Wikimedia Commons.<\/figcaption><\/figure>\r\n\r\n\r\n\r\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/hZzdkgWhvDY\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;border-radius:8px\" allowfullscreen><\/iframe><\/div>\r\n\r\n\r\n<p>Le plus petit de la port\u00e9e des jumbos s&#039;est av\u00e9r\u00e9 avoir la plus longue carri\u00e8re et le destin le plus surprenant de tous. Peu d&#039;avions ont parcouru un si long chemin, \u00e0 bien des \u00e9gards, que le petit 747 trapu que Boeing a os\u00e9 r\u00e9duire \u00e0 une taille raisonnable.<\/p>\r\n\r\n<p><em>Sources : Simple Flying, NASA, This Day in Aviation, Wikip\u00e9dia.<\/em><\/p>\r\n\r\n\r\n<div style=\"background:#f0f4ff;border-left:4px solid #5C91FF;padding:16px 20px;margin:32px 0 8px;border-radius:0 8px 8px 0\"><p style=\"margin:0 0 8px;font-weight:600;color:#333\">Articles similaires<\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/fr\/boeing-747-how-the-queen-of-the-skies-changed-air-travel\/\">Boeing 747\u00a0: Comment la Reine des Cieux a r\u00e9volutionn\u00e9 le transport a\u00e9rien<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/fr\/explosion-de-moteur-dun-airbus-a380-de-qantas-32-a-singapour\/\">L&#039;A380 qui a refus\u00e9 de mourir<\/a><\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>Boeing took its most famous creation, the mighty 747 &ldquo;Jumbo Jet,&rdquo; and did something almost sacrilegious: it sawed nearly 50 feet out of the middle. The result was a stubby, oddly proportioned jumbo that looked like a 747 caught in a funhouse mirror, and it could fly farther than any airliner of its day. This [&hellip;]<\/p>\n","protected":false},"author":27,"featured_media":15200682,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[665,666],"tags":[],"class_list":["post-15200993","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aviation-world","category-history-and-legends"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Boeing 747SP: The Stubby Record-Setting Jumbo<\/title>\n<meta name=\"description\" content=\"Boeing cut nearly 50 feet from the 747 to build the 747SP, a record-setting long-range jumbo that ended up as NASA\u2019s SOFIA telescope.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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