{"id":5906237,"date":"2026-07-17T11:49:12","date_gmt":"2026-07-17T09:49:12","guid":{"rendered":"https:\/\/migflug.com\/jetflights\/?p=5906237"},"modified":"2026-07-20T16:02:51","modified_gmt":"2026-07-20T14:02:51","slug":"un-avion-espion-convair-kingfish-de-la-cia-a-ete-perdu-face-a-un-blackbird-de-12-pouces","status":"publish","type":"post","link":"https:\/\/migflug.com\/jetflights\/fr\/convair-kingfish-cia-spy-plane-lost-to-a-12-blackbird\/","title":{"rendered":"L&#039;avion espion qui a perdu face au Blackbird"},"content":{"rendered":"<p><style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style><\/p>\r\n<p>Tout le monde conna\u00eet le Lockheed A-12 et son illustre descendant, le SR-71 Blackbird\u00a0: ces avions espions noirs, capables de voler \u00e0 Mach 3, ont \u00e9chapp\u00e9 \u00e0 tous les missiles jamais tir\u00e9s contre eux. Presque personne ne se souvient de l\u2019appareil qui a failli les devancer\u00a0: le Kingfish de Convair, un avion espion aux lignes anguleuses, furtif et con\u00e7u pour \u00e9chapper aux radars, qui a perdu de justesse le concours de conception le plus important de la Guerre froide, avant de dispara\u00eetre des m\u00e9moires.<\/p>\r\n<p>Pourtant, le Kingfish \u00e9tait peut-\u00eatre le projet le plus visionnaire. Deux d\u00e9cennies avant le F-117, ses concepteurs travaillaient d\u00e9j\u00e0 sur un avion invisible aux radars \u2013 une id\u00e9e qui allait survivre \u00e0 la comp\u00e9tition perdue.<\/p>\r\n\r\n<div style=\"background: #f5f5f5; padding: 20px; border-radius: 8px; margin: 24px 0;\">\r\n<p style=\"margin: 0 0 10px; font-weight: bold; font-size: 15px; letter-spacing: .03em; color: #111;\">FAITS RAPIDES<\/p>\r\n<table style=\"border-collapse: collapse; font-size: 15px; line-height: 1.5;\">\r\n<tbody>\r\n<tr>\r\n<td style=\"padding: 6px 12px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">R\u00f4le<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">Reconnaissance \u00e0 haute altitude de la CIA (proposition)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 12px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">Programme<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">Projet GUSTO \/ OXCART, 1957\u201359<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 12px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">centrale \u00e9lectrique<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">2 \u00d7 Pratt &amp; Whitney J58, enfouis dans le fuselage<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 12px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">vitesse de conception<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">Mach 3.2<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 12px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">Nombre construit<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">0 (mod\u00e8le de test radar uniquement)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 12px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">Destin<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">Abattu par un Lockheed A-12, le 28 ao\u00fbt 1959<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n\r\n<h2 style=\"padding-top: 22px;\">La course pour remplacer le U-2<\/h2>\r\n<p>Apr\u00e8s que le U-2 eut prouv\u00e9 sa d\u00e9tectabilit\u00e9 au-dessus de l&#039;Union sovi\u00e9tique, la CIA lan\u00e7a le projet GUSTO afin de trouver un successeur ind\u00e9tectable par radar. Deux g\u00e9ants s&#039;affront\u00e8rent\u00a0: la division Skunk Works de Lockheed, dirig\u00e9e par Kelly Johnson, et Convair de Fort Worth. Lockheed d\u00e9veloppa l&#039;A-12 Oxcart, tandis que Convair cr\u00e9a le Kingfish.<\/p>\r\n<p>Convair a pris la question de la signature radar tr\u00e8s au s\u00e9rieux, avec des d\u00e9cennies d&#039;avance sur son temps. Le Kingfish int\u00e9grait ses deux moteurs Pratt &amp; Whitney J58 \u00e0 l&#039;int\u00e9rieur du fuselage, utilisait des mat\u00e9riaux c\u00e9ramiques et absorbant les ondes radar sur ses bords et arborait une forme angulaire qui rappelle \u00e9trangement les avions furtifs des ann\u00e9es 1980. Sur le papier, il croisait \u00e0 Mach 3,2 au-dessus de 27\u00a0400 m\u00e8tres d&#039;altitude.<\/p>\r\n\r\n<div style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; margin: 24px 0;\"><iframe class=\"skip-lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; border-radius: 8px;\" src=\"https:\/\/www.youtube.com\/embed\/0W3FsBTAqgc\" allowfullscreen=\"allowfullscreen\" data-no-lazy=\"1\"><\/iframe><\/div>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin: 0 0 24px;\"><img data-opt-id=934655693  fetchpriority=\"high\" decoding=\"async\" class=\"skip-lazy\" style=\"max-width: 100%; height: auto; border-radius: 6px;\" src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:0e0_.b970\/w:auto\/h:auto\/q:mauto\/ig:avif\/https:\/\/migflug.com\/jetflights\/wp-content\/uploads\/sites\/4\/2026\/07\/convair-kingfish-diagram.jpg\" alt=\"Sch\u00e9ma conceptuel du Convair Kingfish\" data-no-lazy=\"1\" \/>\r\n<figcaption style=\"font-size: 13px; color: #777; text-align: center; margin-top: 6px; font-style: italic;\">Le Kingfish avait ses moteurs int\u00e9gr\u00e9s au fuselage et utilisait des bords absorbant les ondes radar \u2014 des id\u00e9es qui r\u00e9appara\u00eetront sur le F-117 deux d\u00e9cennies plus tard. Image\u00a0: Wikimedia Commons<\/figcaption>\r\n<\/figure>\r\n\r\n<h2 style=\"padding-top: 22px;\">Une rivalit\u00e9 d\u00e9cid\u00e9e par la r\u00e9putation<\/h2>\r\n<p>Kelly Johnson n&#039;\u00e9tait pas impressionn\u00e9 par son rival\u00a0; il se m\u00e9fiait plut\u00f4t de la mani\u00e8re dont Convair avait traqu\u00e9 une faible signature radar. Dans son rapport confidentiel sur le programme OXCART, il fut direct.<\/p>\r\n\r\n<div style=\"background: #f8f9fa; border-left: 4px solid  #d32f2f; 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;\">\r\n<div><em>\u201c Convair a promis une signature radar r\u00e9duite pour un avion de la taille d&#039;un A-12. \u00c0 mon avis, ils le font au m\u00e9pris total de l&#039;a\u00e9rodynamisme, des performances de l&#039;entr\u00e9e d&#039;air et de la postcombustion. \u201d<\/em>\r\n<div style=\"margin-top: 10px; font-size: 14px; color: #555;\"><strong>Clarence \" Kelly \" Johnson<\/strong> \u2014 Concepteur en chef de Lockheed Skunk Works, histoire d&#039;OXCART (1968)<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n<p>Le 28 ao\u00fbt 1959, le comit\u00e9 choisit Lockheed. L&#039;A-12 \u00e9tait jug\u00e9 l\u00e9g\u00e8rement plus rapide et capable de voler plus haut, et surtout, moins cher. Mais le facteur d\u00e9cisif fut la confiance. Certains agents de la CIA pr\u00e9f\u00e9raient en r\u00e9alit\u00e9 le Kingfish pour sa signature radar r\u00e9duite\u00a0; ils furent dissuad\u00e9s par les membres de l&#039;arm\u00e9e de l&#039;air au sein du comit\u00e9, qui se souvenaient du programme B-58 de Convair, un programme chaotique et aux co\u00fbts exorbitants.<\/p>\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;\">\r\n<div><em>\u201c Certains repr\u00e9sentants de la CIA privil\u00e9giaient initialement le mod\u00e8le KINGFISH de Convair en raison de sa plus faible signature radar, mais ils ont finalement \u00e9t\u00e9 convaincus de soutenir le mod\u00e8le de Lockheed par les membres de l&#039;arm\u00e9e de l&#039;air au sein du panel, qui estimaient que les d\u00e9passements de co\u00fbts et les retards de production de Convair sur le projet B-58 pourraient se reproduire. \u201d<\/em>\r\n<div style=\"margin-top: 10px; font-size: 14px; color: #555;\"><strong>Pedlow et Welzenbach<\/strong> \u2014 Histoire officielle de la CIA des programmes U-2 et OXCART (1992)<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin: 0 0 24px;\"><img data-opt-id=1422110650  fetchpriority=\"high\" decoding=\"async\" class=\"skip-lazy\" style=\"max-width: 100%; height: auto; border-radius: 6px;\" src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:0e0_.b970\/w:auto\/h:auto\/q:mauto\/ig:avif\/https:\/\/migflug.com\/jetflights\/wp-content\/uploads\/sites\/4\/2026\/07\/convair-kingfish-1959.jpg\" alt=\"Convair Kingfish, juillet 1959\" data-no-lazy=\"1\" \/>\r\n<figcaption style=\"font-size: 13px; color: #777; text-align: center; margin-top: 6px; font-style: italic;\">Le Kingfish n&#039;a jamais d\u00e9pass\u00e9 le stade de la conception. Ses concepts de furtivit\u00e9, cependant, seront repris dans le F-117 Nighthawk. Image\u00a0: Wikimedia Commons<\/figcaption>\r\n<\/figure>\r\n\r\n<p>Le Kingfish ne vit jamais le jour. Les financements s&#039;arr\u00eat\u00e8rent net d\u00e8s que le projet de Lockheed remporta le succ\u00e8s, et l&#039;avion espion anguleux de Convair tomba dans l&#039;oubli. Pourtant, il suffit de regarder un F-117 Nighthawk \u2013 moteurs int\u00e9gr\u00e9s, rev\u00eatement \u00e0 facettes, bords absorbant les ondes radar \u2013 pour se rendre compte que Convair avait eu cette id\u00e9e en premier. L&#039;entreprise perdit le contrat, mais elle a peut-\u00eatre remport\u00e9 la bataille juridique.<\/p>\r\n\r\n<div style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; margin: 24px 0;\"><iframe class=\"skip-lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; border-radius: 8px;\" src=\"https:\/\/www.youtube.com\/embed\/wxA0VlsQ4bc\" allowfullscreen=\"allowfullscreen\" data-no-lazy=\"1\"><\/iframe><\/div>\r\n\r\n<p><em>Sources : Pedlow &amp; Welzenbach, CIA history of the U-2 and OXCART Programs ; Kelly Johnson, OXCART programme log ; Wikipedia.<\/em><\/p>\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;\">\r\n<p style=\"margin: 0 0 8px; font-weight: 600; color: #333;\">Articles similaires<\/p>\r\n<p style=\"margin: 4px 0;\"><a href=\"https:\/\/migflug.com\/jetflights\/pyotr-ufimtsev-soviet-scientist-gave-america-stealth\/\">Le 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F-117.<\/p>","protected":false},"author":27,"featured_media":5906031,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[666,664],"tags":[],"class_list":["post-5906237","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-history-and-legends","category-military-aviation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Convair Kingfish: The Spy Plane That Lost to the A-12<\/title>\n<meta name=\"description\" content=\"The Convair Kingfish nearly became the CIA&#039;s Mach-3 spy plane, until it lost a secret 1959 contest to the Lockheed A-12 Blackbird.\" \/>\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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