{"id":7036181,"date":"2026-07-24T09:51:44","date_gmt":"2026-07-24T07:51:44","guid":{"rendered":"https:\/\/migflug.com\/jetflights\/fairey-gannet-contra-rotating-submarine-hunter\/"},"modified":"2026-07-24T09:52:13","modified_gmt":"2026-07-24T07:52:13","slug":"fou-de-bassan-contre-chasseur-de-sous-marins-rotatifs","status":"publish","type":"post","link":"https:\/\/migflug.com\/jetflights\/fr\/fairey-gannet-contra-rotating-submarine-hunter\/","title":{"rendered":"Le sous-marin Hunter \u00e0 h\u00e9lices tournant dans les deux sens"},"content":{"rendered":"<style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style>\r\n<p>Vue de face, la Fairey Gannet ressemblait \u00e0 un appareil dont le choix avait \u00e9t\u00e9 tranch\u00e9 par un comit\u00e9. Un fuselage profond et bossu, un avant obstru\u00e9 par un radar et un nez surcharg\u00e9 de huit h\u00e9lices rotatives dispos\u00e9es en deux disques contrarotatifs. C&#039;est l&#039;un des avions les plus \u00e9tranges que la Royal Navy ait jamais mis en service.<\/p>\r\n<p>Il \u00e9tait \u00e9galement brillant dans sa fonction. Derri\u00e8re sa forme peu harmonieuse se cachait l&#039;un des groupes motopropulseurs les plus ing\u00e9nieux des ann\u00e9es 1950 et une v\u00e9ritable premi\u00e8re dans l&#039;aviation\u00a0: le premier avion turbopropulseur \u00e0 atterrir sur un porte-avions.<\/p>\r\n\r\n<div style=\"background:#f5f5f5;padding:20px;border-radius:8px;margin:24px 0\"><h3 style=\"padding-top:0;margin-top:0\">Informations cl\u00e9s<\/h3><ul style=\"margin:0;line-height:1.8\"><li><strong>A\u00e9ronef:<\/strong> Fairey Gannet, avion de lutte anti-sous-marine embarqu\u00e9 (et plus tard d&#039;alerte avanc\u00e9e)<\/li><li><strong>Op\u00e9rateur:<\/strong> L&#039;a\u00e9ronavale de la Royal Navy, ainsi que l&#039;Australie, l&#039;Allemagne et d&#039;autres pays.<\/li><li><strong>D&#039;abord:<\/strong> Premier turbopropulseur \u00e0 atterrir sur un porte-avions \u2014 HMS Illustrious, 18 juin 1950<\/li><li><strong>Moteur:<\/strong> Armstrong Siddeley Double Mamba \u2014 deux turbopropulseurs, un moyeu d&#039;h\u00e9lice<\/li><li><strong>Tour de magie :<\/strong> Couper la moiti\u00e9 du moteur en croisi\u00e8re permet de quasiment doubler l&#039;autonomie.<\/li><li><strong>Construit:<\/strong> Environ 300 avions anti-sous-marins et 45 avions de d\u00e9tection et de contr\u00f4le a\u00e9riens.<\/li><\/ul><\/div>\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\/co64FbbzBGQ\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;border-radius:8px\" allowfullscreen><\/iframe><\/div>\r\n<h2 style=\"padding-top:22px\">Deux moteurs, une h\u00e9lice<\/h2>\r\n<p>Le c\u0153ur du Gannet \u00e9tait le Double Mamba\u00a0: deux turbopropulseurs Armstrong Siddeley Mamba mont\u00e9s c\u00f4te \u00e0 c\u00f4te, chacun entra\u00eenant une h\u00e9lice coaxiale tournant en sens inverse sur le m\u00eame axe. Le moteur de gauche actionnait l\u2019h\u00e9lice avant, celui de droite l\u2019h\u00e9lice arri\u00e8re.<\/p>\r\n<p>Cette configuration r\u00e9solvait un probl\u00e8me qui avait co\u00fbt\u00e9 la vie \u00e0 de nombreux pilotes de bimoteurs. Gr\u00e2ce \u00e0 la conception coaxiale et contrarotative des h\u00e9lices, l&#039;arr\u00eat d&#039;un moteur ne produisait aucune pouss\u00e9e asym\u00e9trique\u00a0: l&#039;appareil continuait de voler sur l&#039;autre moiti\u00e9. C&#039;est pr\u00e9cis\u00e9ment ce que faisaient les \u00e9quipages. Lors d&#039;une longue patrouille, ils arr\u00eataient un Mamba, r\u00e9duisant ainsi leur vitesse de croisi\u00e8re d&#039;environ 400 km\/h \u00e0 environ 270 km\/h et augmentant leur autonomie d&#039;environ trois heures et demie \u00e0 plus de cinq heures, en alternant les moteurs toutes les demi-heures environ afin d&#039;uniformiser leur usure.<\/p>\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img data-opt-id=1997325965  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\/jetflights\/wp-content\/uploads\/sites\/4\/2026\/07\/fairey-gannet-as4.jpg\" alt=\"Avion anti-sous-marin Fairey Gannet AS.4\" 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\">Un Gannet AS.4 en service dans la Royal Navy. Sa mission \u00e9tait de localiser, suivre et d\u00e9truire les sous-marins depuis le pont d&#039;un porte-avions. Photo de l&#039;US Navy.<\/figcaption><\/figure>\r\n<p>Le d\u00e9marrage \u00e9tait un spectacle en soi. Le moteur avant \u00e9tait allum\u00e9 par une cartouche\u00a0; le moteur arri\u00e8re \u00e9tait ensuite mis en marche par le souffle de l\u2019h\u00e9lice avant. Entre cela et le d\u00e9ploiement th\u00e9\u00e2tral de ses ailes \u00e0 double articulation, le d\u00e9marrage d\u2019un Gannet sur le pont offrait un v\u00e9ritable spectacle.<\/p>\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\"><em>\u201c Entre le d\u00e9marrage des deux h\u00e9lices et le d\u00e9ploiement des ailes, c&#039;\u00e9tait vraiment un spectacle impressionnant. \u201d<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Acheteur GA Europe<\/strong> \u2014 Profil AvBuyer du Fairey Gannet<\/div><\/div>\r\n<h2 style=\"padding-top:22px\">Con\u00e7u pour le pont<\/h2>\r\n<p>Tout, dans le Gannet, \u00e9tait impr\u00e9gn\u00e9 des contraintes de la vie sur porte-avions. Ses ailes se repliaient deux fois en un \u2018\u00a0Z\u00a0\u2019 caract\u00e9ristique afin de gagner un espace pr\u00e9cieux dans les hangars. Un train d&#039;atterrissage avant robuste offrait au pilote une excellente visibilit\u00e9 vers l&#039;avant, contrairement aux avions \u00e0 roulette de queue qui l&#039;avaient pr\u00e9c\u00e9d\u00e9. Trois membres d&#039;\u00e9quipage prenaient place \u00e0 bord\u00a0: un pilote, un observateur charg\u00e9 de la chasse tactique et un op\u00e9rateur radio install\u00e9 \u00e0 l&#039;arri\u00e8re.<\/p>\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\/EKZ7cdbsyYQ\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;border-radius:8px\" allowfullscreen><\/iframe><\/div>\r\n<p>Le mod\u00e8le a tellement impressionn\u00e9 le pilote d&#039;essai le plus c\u00e9l\u00e8bre de la Fleet Air Arm que son verdict a \u00e9t\u00e9 sans appel.<\/p>\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\"><em>\u201c Avion id\u00e9al pour les appontages sur porte-avions. \u201d<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Capitaine Eric \u201c Winkle \u201d Brown<\/strong> \u2014 Pilote d&#039;essai de la Royal Navy<\/div><\/div>\r\n<h2 style=\"padding-top:22px\">Une seconde vie regardant vers le bas<\/h2>\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img data-opt-id=266866762  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\/jetflights\/wp-content\/uploads\/sites\/4\/2026\/07\/fairey-gannet-aew3-radome.jpg\" alt=\"Fairey Gannet AEW3 avec rad\u00f4me ventral\" 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\">L&#039;AEW3 a troqu\u00e9 son \u00e9quipement de lutte anti-sous-marine contre un immense rad\u00f4me radar, devenant ainsi le syst\u00e8me d&#039;alerte avanc\u00e9e a\u00e9roport\u00e9 de la flotte. Photo de la Royal Navy<\/figcaption><\/figure>\r\n<p>\u00c0 la fin des ann\u00e9es 1950, les h\u00e9licopt\u00e8res prenaient le relais dans la lutte anti-sous-marine, mais le Gannet \u00e9tait trop pr\u00e9cieux pour \u00eatre retir\u00e9 du service. Il fut transform\u00e9 en AEW3, un avion de guet a\u00e9rien dot\u00e9 d&#039;un grand rad\u00f4me ventral et d&#039;un moteur plus puissant, charg\u00e9 de scruter le ciel pour la flotte. Il resta en service jusqu&#039;en 1978, date \u00e0 laquelle la Royal Navy d\u00e9sarma son dernier porte-avions \u00e0 voilure fixe, le HMS Ark Royal.<\/p>\r\n<p>Environ 300 Gannets anti-sous-marins et 45 versions de d\u00e9tection avanc\u00e9e furent construits et servirent notamment en Grande-Bretagne, en Australie et dans d&#039;autres pays. \u00c0 la fois imposant et ing\u00e9nieux, le Gannet s&#039;av\u00e9ra indispensable en mati\u00e8re d&#039;aviation navale, prouvant ainsi que l&#039;esth\u00e9tique n&#039;a jamais \u00e9t\u00e9 le crit\u00e8re principal.<\/p>\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\/sNHYDlL1S80\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;border-radius:8px\" allowfullscreen><\/iframe><\/div>\r\n<p><em>Sources : AvBuyer \/ GA Buyer Europe ; Thunder &amp; Lightnings ; Centre de puissance maritime de la Marine royale australienne ; Wikip\u00e9dia.<\/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\"><p style=\"margin:0 0 8px;font-weight:600;color:#333\">Articles similaires<\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/jetflights\/p-3-orion-submarine-hunter-60-years-retirement\/\">Le sous-marin chasseur qui a scrut\u00e9 les oc\u00e9ans pendant 60 ans<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/jetflights\/rimpac-2026-multinational-crews-p-8a-poseidon-submarine-hunting\/\">Six drapeaux, un chasseur de sous-marins<\/a><\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>Head-on, the Fairey Gannet looked like something a committee had argued about and lost. A deep, humpbacked fuselage, a chin full of radar, and a nose crowded with eight spinning propeller blades stacked in two counter-rotating discs. It is one of the most awkward-looking aircraft the Royal Navy ever put to sea. It was also [&hellip;]<\/p>\n","protected":false},"author":27,"featured_media":7036075,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[666,664],"tags":[],"class_list":["post-7036181","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>Fairey Gannet: The Contra-Rotating Sub-Hunter<\/title>\n<meta name=\"description\" content=\"The Fairey Gannet was the first turboprop to land on a carrier, with a Double Mamba engine driving contra-rotating propellers. 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