{"id":9453134,"date":"2026-08-04T17:06:06","date_gmt":"2026-08-04T15:06:06","guid":{"rendered":"https:\/\/migflug.com\/jetflights\/?p=9453134"},"modified":"2026-08-04T17:08:07","modified_gmt":"2026-08-04T15:08:07","slug":"martin-baker-mb5-le-meilleur-chasseur-britannique-jamais-construit","status":"publish","type":"post","link":"https:\/\/migflug.com\/afterburner\/fr\/martin-baker-mb5-best-british-fighter-never-built\/","title":{"rendered":"Le meilleur chasseur britannique jamais construit"},"content":{"rendered":"<style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style>\r\n\r\n<p>Chaque pilote d&#039;essai qui l&#039;a pilot\u00e9 semblait rivaliser de superlatifs. L&#039;un des plus grands aviateurs du si\u00e8cle l&#039;a qualifi\u00e9 d&#039;exceptionnel. Un autre, qui allait plus tard repousser les limites du contr\u00f4le des avions \u00e0 r\u00e9action, l&#039;a tout simplement d\u00e9crit comme le meilleur avion qu&#039;il ait jamais pilot\u00e9. Le Martin-Baker MB 5 \u00e9tait peut-\u00eatre le meilleur chasseur \u00e0 moteur \u00e0 pistons jamais produit en Grande-Bretagne.<\/p>\r\n\r\n<p>La Royal Air Force en a construit un seul exemplaire, puis a abandonn\u00e9.<\/p>\r\n\r\n<div style=\"background:#f5f5f5;padding:20px 22px;margin:24px 0;border-radius:8px;border:1px solid #e5e5e5\"><p style=\"margin:0 0 10px;font-weight:700;font-size:18px\">Informations cl\u00e9s<\/p><ul style=\"margin:0;padding-left:20px;line-height:1.8\"><li><strong>A\u00e9ronef:<\/strong> Martin-Baker MB 5, prototype num\u00e9ro de s\u00e9rie R2496<\/li><li><strong>Premier vol :<\/strong> 23 mai 1944<\/li><li><strong>Moteur:<\/strong> Rolls-Royce Griffon 83, environ 2 340 ch, entra\u00eenant des h\u00e9lices contrarotatives \u00e0 six pales<\/li><li><strong>Performance:<\/strong> environ 740 km\/h, plafond d&#039;environ 12 200 m<\/li><li><strong>Armement:<\/strong> quatre canons Hispano de 20 mm<\/li><li><strong>Construit:<\/strong> un \u2014 jamais mis en production<\/li><\/ul><\/div>\r\n\r\n<h2 style=\"padding-top:22px\">Le chef-d&#039;\u0153uvre de l&#039;outsider<\/h2>\r\n<p>Martin-Baker \u00e9tait une petite entreprise dirig\u00e9e par deux hommes\u00a0: James Martin, ing\u00e9nieur brillant et autodidacte, et son ami et pilote d\u2019essai Valentine Baker. Leur prototype MB 3 s\u2019\u00e9crasa en 1942, tuant Baker \u2013 une perte qui allait hanter, et plus tard d\u00e9finir, l\u2019entreprise. Martin pers\u00e9v\u00e9ra, redessinant l\u2019appareil autour d\u2019un moteur Rolls-Royce Griffon et d\u2019une paire d\u2019h\u00e9lices contrarotatives. Le r\u00e9sultat, le MB 5, effectua son premier vol en mai 1944.<\/p>\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img data-opt-id=376332903  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\/martin-baker-mb5-b1.png\" alt=\"Diagramme \u00e0 trois vues du Martin-Baker MB 5\" 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\">Vue en trois dimensions du MB 5. Remarquez les deux h\u00e9lices contrarotatives et la structure simple et \u00e9pur\u00e9e, con\u00e7ue pour faciliter la maintenance. Sch\u00e9ma\u00a0: Wikimedia Commons<\/figcaption><\/figure>\r\n\r\n\r\n<p>D&#039;apr\u00e8s les t\u00e9moignages des pilotes qui l&#039;ont test\u00e9, il fr\u00f4lait la perfection. Rapide, stable, d&#039;une harmonie remarquable et, chose rare, d&#039;une grande facilit\u00e9 d&#039;entretien gr\u00e2ce \u00e0 un fuselage compos\u00e9 de panneaux d\u00e9tachables qui offraient aux m\u00e9caniciens un acc\u00e8s ais\u00e9 \u00e0 tous les \u00e9l\u00e9ments. L\u00e0 o\u00f9 la plupart des chasseurs \u00e9taient un compromis, le MB 5 apparaissait comme une solution id\u00e9ale.<\/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 \u00c0 mon avis, il s&#039;agit d&#039;un avion exceptionnel, surtout si l&#039;on consid\u00e8re qu&#039;il a effectu\u00e9 son vol inaugural d\u00e8s le 23 mai 1944. \u201d<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Capitaine Eric \" Winkle \" Brown<\/strong> \u2014 Pilote d&#039;essai de la Royal Navy, \u00e9crivant en 1948<\/div><\/div><\/div>\r\n\r\n\r\n<p>L&#039;as polonais et virtuose de l&#039;aviation Janusz \u017burakowski l&#039;a fait voler dans le ciel de Farnborough en 1946, laissant les spectateurs stup\u00e9faits. Il l&#039;a jug\u00e9 exceptionnel \u2013 meilleur, \u00e0 bien des \u00e9gards, pensait-il, que le <a href=\"https:\/\/migflug.com\/afterburner\/fr\/aeronef\/supermarine-spitfire\/\">Spitfire<\/a> elle-m\u00eame.<\/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 Le meilleur avion que j&#039;aie jamais pilot\u00e9. \u201d<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>S\/L Janusz \u017burakowski<\/strong> \u2014 Pilote d&#039;essai de l&#039;A&amp;AEE, cit\u00e9 dans une publication de Rolls-Royce<\/div><\/div><\/div>\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\/bMdv7UBdWw4\" 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\">Tu\u00e9 par le timing<\/h2>\r\n<p>Alors pourquoi a-t-il connu un tel \u00e9chec\u00a0? En partie, \u00e0 cause d\u2019un coup du sort. Lors de la d\u00e9monstration du MB 5 \u00e0 Winston Churchill, chef d\u2019\u00e9tat-major de l\u2019arm\u00e9e de l\u2019air, et \u00e0 une foule de personnalit\u00e9s \u00e0 Farnborough, le moteur Griffon a choisi ce moment pr\u00e9cis pour tomber en panne \u2013 une impression que peu susceptible de donner au Premier ministre.<\/p>\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img data-opt-id=606513413  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\/martin-baker-mb5-b2.jpg\" alt=\"R\u00e9plique Martin-Baker MB 5\" 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\">Une r\u00e9plique grandeur nature du MB 5, construite des d\u00e9cennies plus tard au Nevada \u00e0 partir des ailes d&#039;un P-51 Mustang. Photo\u00a0: Wikimedia Commons<\/figcaption><\/figure>\r\n\r\n\r\n<p>Mais les raisons profondes \u00e9taient d&#039;ordre structurel. En 1944, l&#039;\u00e8re du jet commen\u00e7ait et le minist\u00e8re de l&#039;Air s&#039;\u00e9tait r\u00e9solument tourn\u00e9 vers les chasseurs \u00e0 turbines. Un nouveau chasseur \u00e0 pistons, aussi performant f\u00fbt-il, \u00e9tait une technologie en voie de disparition. Or, Martin-Baker \u00e9tait une petite entreprise ind\u00e9pendante qui, de l&#039;avis des historiens, ne disposait tout simplement ni des usines ni du soutien gouvernemental n\u00e9cessaires pour produire les chasseurs dont une force a\u00e9rienne en temps de guerre avait besoin. Les commandes furent donc attribu\u00e9es aux grands constructeurs \u00e9tablis.<\/p>\r\n\r\n\r\n<div style=\"display:flex;justify-content:center;margin:2em 0\"><blockquote class=\"reddit-embed-bq\" data-embed-height=\"500\"><a href=\"https:\/\/www.reddit.com\/r\/WWIIplanes\/comments\/e9or6u\/the_greatest_fighter_of_ww2_the_martinbaker_mb5\/\">Le Martin-Baker MB5 sur r\/WWIIplanes<\/a><\/blockquote><script async src=\"https:\/\/embed.reddit.com\/widgets.js\" charset=\"utf-8\"><\/script><\/div>\r\n\r\n\r\n<h2 style=\"padding-top:22px\">Le lot de consolation qui a chang\u00e9 l&#039;aviation<\/h2>\r\n<p>Le seul MB 5 fut finalement d\u00e9truit, et le plus grand chasseur \u00e0 pistons britannique jamais entr\u00e9 en service entra dans la l\u00e9gende. Mais l&#039;histoire conna\u00eet une fin remarquable. Hant\u00e9 par la mort de Valentine Baker, James Martin mit le g\u00e9nie de l&#039;entreprise au service d&#039;un autre probl\u00e8me\u00a0: comment extraire vivant un pilote d&#039;un avion condamn\u00e9.<\/p>\r\n\r\n<p>Martin-Baker est devenu le premier fabricant mondial de si\u00e8ges \u00e9jectables, et ses si\u00e8ges ont depuis sauv\u00e9 des milliers de vies dans des dizaines de forces a\u00e9riennes. L&#039;entreprise qui n&#039;avait pas r\u00e9ussi \u00e0 vendre son avion de chasse id\u00e9al a finalement sauv\u00e9 plus de membres d&#039;\u00e9quipage que n&#039;importe quel autre avion de chasse. Difficile d&#039;imaginer une suite plus surprenante, ou plus r\u00e9ussie.<\/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\/1CJWEc_sQkQ\" 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 style=\"font-style:italic;color:#777;font-size:14px\">Sources\u00a0: Wikip\u00e9dia\u00a0; Eric Brown, <em>Les Ailes de l&#039;\u00c9trange et du Merveilleux<\/em>; Kit de silence ; R\u00e9seau des m\u00e9dias de la d\u00e9fense ; Ancienne presse \u00e0 machines.<\/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\/le-tsr-2-le-meilleur-avion-britannique-qui-nait-jamais-servi\/\">Le TSR-2\u00a0: Le meilleur avion britannique qui n\u2019a jamais servi<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/fr\/le-projet-de-jet-supersonique-britannique-miles-m52-a-ete-annule-en-1946\/\">L&#039;avion supersonique que la Grande-Bretagne a jet\u00e9<\/a><\/p><p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/fr\/how-ejection-seats-work-martin-baker-sequence-physics\/\">Comment fonctionnent r\u00e9ellement les si\u00e8ges \u00e9jectables<\/a><\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>Les pilotes d&#039;essai qualifi\u00e8rent le Martin-Baker MB 5 de meilleur chasseur \u00e0 pistons qu&#039;ils aient jamais pilot\u00e9. La RAF n&#039;en construisit qu&#039;un seul exemplaire.<\/p>","protected":false},"author":27,"featured_media":9452678,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[666],"tags":[],"class_list":["post-9453134","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","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>Martin-Baker MB 5: The Best British Fighter Never Built<\/title>\n<meta name=\"description\" content=\"Test pilots called the Martin-Baker MB 5 the finest piston fighter they ever flew \u2014 but the RAF built only one.\" \/>\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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