{"id":9747195,"date":"2026-08-05T18:12:38","date_gmt":"2026-08-05T16:12:38","guid":{"rendered":"https:\/\/migflug.com\/jetflights\/saunders-roe-sr53-rocket-jet-interceptor\/"},"modified":"2026-08-05T18:13:16","modified_gmt":"2026-08-05T16:13:16","slug":"intercettore-a-razzo-saunders-roe-sr53","status":"publish","type":"post","link":"https:\/\/migflug.com\/afterburner\/it\/saunders-roe-sr53-rocket-jet-interceptor\/","title":{"rendered":"Intercettore britannico a razzi e jet"},"content":{"rendered":"<style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style>\r\n<p>A met\u00e0 degli anni &#039;50, la Gran Bretagna si trov\u00f2 ad affrontare un incubo: ondate di bombardieri sovietici che salivano sempre pi\u00f9 in alto e volavano sempre pi\u00f9 velocemente, ognuno potenzialmente carico di una bomba atomica. I caccia convenzionali semplicemente non riuscivano a salire abbastanza velocemente da intercettarli in tempo. Cos\u00ec gli ingegneri britannici cercarono una soluzione radicale: un caccia che si sarebbe lanciato quasi verticalmente nella stratosfera spinto da una colonna di fiamme, avrebbe distrutto il bersaglio e poi sarebbe tornato alla base planando grazie a un modesto motore a reazione.<\/p>\r\n<p>Si chiamava Saunders-Roe SR.53 e, a detta di tutti, volava magnificamente. Ciononostante, il progetto fu cancellato, non per un suo difetto, ma per una singola decisione politica del governo.<\/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:700;font-size:18px\">Informazioni rapide<\/p>\r\n<ul style=\"margin:0;padding-left:18px;line-height:1.8\">\r\n<li><strong>Aeromobili:<\/strong> Saunders-Roe SR.53, un prototipo britannico di intercettore a propulsione mista.<\/li>\r\n<li><strong>Concetto:<\/strong> un razzo per un&#039;inseguimento quasi verticale dei bombardieri ad alta quota e un piccolo jet per tornare a casa e atterrare<\/li>\r\n<li><strong>Motori:<\/strong> un razzo de Havilland Spectre (8.000 lbf) pi\u00f9 un turbogetto Armstrong Siddeley Viper<\/li>\r\n<li><strong>Prestazione:<\/strong> Progettato per Mach 2.2; saliva a oltre 50.000 piedi al minuto; autonomia di soli sette minuti circa alla massima potenza.<\/li>\r\n<li><strong>Armamento (previsto):<\/strong> due missili a ricerca di calore de Havilland Firestreak<\/li>\r\n<li><strong>Primo volo:<\/strong> 16 maggio 1957, comandante di squadriglia John Booth<\/li>\r\n<li><strong>Costruito:<\/strong> due prototipi; uno (XD151) si schiant\u00f2 nel 1958, uccidendo Booth<\/li>\r\n<li><strong>Destino:<\/strong> Superato da missili e aerei a reazione pi\u00f9 performanti; il progetto fu cancellato nel luglio del 1960. L&#039;XD145 \u00e8 conservato presso il RAF Museum di Cosford.<\/li>\r\n<\/ul>\r\n<\/div>\r\n\r\n<h2 style=\"padding-top:22px\">Il panico da attentatore<\/h2>\r\n<p>L&#039;esigenza nacque da una reale paura. Nel 1951, il Ministero dell&#039;Aeronautica desiderava un intercettore in grado di raggiungere i 60.000 piedi in soli due minuti e mezzo: un caccia &quot;di difesa puntuale&quot; pronto a decollare all&#039;ultimo momento per distruggere i bombardieri in arrivo prima che potessero sganciare le loro armi. Solo un razzo poteva garantire una simile salita. L&#039;idea non era nuova: nell&#039;ultimo anno di guerra, la Germania aveva impiegato proprio questo scopo con il Messerschmitt Me 163 a propulsione a razzo, e gli Alleati ne avevano studiato attentamente le terrificanti prestazioni.<\/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\/oK6ktA5KNjk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;border-radius:8px\" allowfullscreen><\/iframe><\/div>\r\n\r\n<p style=\"font-size:13px;color:#777;font-style:italic;text-align:center\">L&#039;esemplare superstite del Saunders-Roe SR.53, XD145, conservato presso il Museo della RAF di Cosford.<\/p>\r\n<h2 style=\"padding-top:22px\">Vola in alto, ritorno a casa in aereo<\/h2>\r\n<p>Il progetto proveniva dalla Saunders-Roe, un&#039;azienda curiosamente nota soprattutto per la costruzione di idrovolanti sull&#039;Isola di Wight. Il suo capo progettista, Maurice Brennan, aveva studiato in segreto i caccia a razzo e l&#039;azienda riusc\u00ec a partecipare alla competizione. L&#039;intuizione chiave fu che un intercettore a razzo puro avrebbe dovuto planare verso casa senza propulsione, il che era pericoloso; era molto meglio aggiungere un piccolo motore a reazione per il volo di ritorno e l&#039;atterraggio.<\/p>\r\n<p>Il risultato fu un velivolo elegante e affusolato, con un&#039;ala a delta e una coda a T, e i due scarichi sovrapposti. Un razzo de Havilland Spectre, alimentato a perossido di idrogeno ad alta concentrazione, forniva una spinta colossale di 8.000 libbre per la salita; un piccolo turbogetto Armstrong Siddeley Viper si occupava della manovra di discesa. Doveva essere armato con una coppia di missili a ricerca di calore de Havilland Firestreak. A piena potenza poteva salire a oltre 50.000 piedi al minuto, ma poteva sostenere tale velocit\u00e0 solo per circa sette minuti.<\/p>\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img data-opt-id=1080174438  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\/sr53-xd145-cosford.jpg\" alt=\"Il Saunders-Roe SR.53 XD145 conservato presso il Museo della RAF di Cosford.\" 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;SR.53 XD145, il prototipo sopravvissuto, presso il Museo della RAF di Cosford. I suoi scarichi a razzo e a reazione, sovrapposti, si trovano sotto la coda. Foto: Wikimedia Commons<\/figcaption><\/figure>\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\/F14p4wUS340\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;border-radius:8px\" allowfullscreen><\/iframe><\/div>\r\n\r\n<p style=\"font-size:13px;color:#777;font-style:italic;text-align:center\">La storia dell&#039;SR.53 e del suo successore pi\u00f9 grande, dotato di radar, l&#039;SR.177.<\/p>\r\n<h2 style=\"padding-top:22px\">Primo volo, e fatale<\/h2>\r\n<p>Il 16 maggio 1957, il comandante di squadriglia John Booth fece decollare il primo prototipo, l&#039;XD145, dalla pista di Boscombe Down. L&#039;aereo si comport\u00f2 in modo superbo.<\/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\"><div><em>\u201c&quot;...un aereo estremamente docile e piacevolissimo da pilotare, con comandi molto ben armonizzati.&quot;\u201d<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Valutazione dei test di volo della RAF<\/strong> \u2014 Boscombe Down, documentato dallo storico Pete London<\/div><\/div><\/div>\r\n\r\n<p>Ma il volo con i razzi era spietato. Il 5 giugno 1958, il secondo prototipo, XD151, sub\u00ec un decollo interrotto, usc\u00ec di pista, urt\u00f2 un faro di avvicinamento in cemento ed esplose, uccidendo John Booth. I voli di prova continuarono con l&#039;aereo superstite sotto il comando del tenente comandante Peter Lamb; insieme, i due SR.53 effettuarono 56 voli.<\/p>\r\n<h2 style=\"padding-top:22px\">Ucciso da un documento bianco<\/h2>\r\n<p>Il vero nemico, tuttavia, non era la pericolosit\u00e0 della macchina, bens\u00ec il calendario. L&#039;SR.53 effettu\u00f2 il suo primo volo appena un mese dopo la pubblicazione del Libro Bianco sulla Difesa del 1957 da parte del governo britannico, un documento che dichiarava che il futuro della difesa aerea apparteneva ai missili guidati, non ai caccia con equipaggio, e che spazzava via un programma dopo l&#039;altro.<\/p>\r\n<p>Nel frattempo, il mondo era cambiato. I motori a reazione erano diventati cos\u00ec potenti in sei anni che un caccia convenzionale con postbruciatore poteva quasi eguagliare la quota di salita dell&#039;SR.53 senza bisogno di alcun razzo, e il miglioramento dei radar permetteva di individuare i bombardieri molto prima. La necessit\u00e0 di un intercettore a razzo a corto raggio era semplicemente svanita. Il programma fu formalmente cancellato il 29 luglio 1960.<\/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\"><div><em>\u201cIl disastro dei progetti aeronautici abbandonati della Gran Bretagna.\u201d<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Derek Wood<\/strong> \u2014 storico dell&#039;aviazione, dal titolo del suo studio classico \u201cProgetto cancellato\u201d<\/div><\/div><\/div>\r\n\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img data-opt-id=296622251  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\/sr53-preserved.jpg\" alt=\"Un Saunders-Roe SR.53 conservato\" 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;SR.53 volava in modo superbo, ma un cambiamento nella politica di difesa lo lasci\u00f2 senza una missione da svolgere. Foto: Wikimedia Commons<\/figcaption><\/figure>\r\n\r\n<h2 style=\"padding-top:22px\">L&#039;ultima resistenza del caccia missilistico<\/h2>\r\n<p>L&#039;SR.53 rappresent\u00f2 l&#039;ultimo tassello di una stirpe che risaliva al Me 163. La Gran Bretagna non era la sola a inseguire questo sogno: la Francia costru\u00ec il suo intercettore ibrido a razzo e a reazione, lo SNCASO Trident, quasi nello stesso periodo, ma l&#039;intero concetto era gi\u00e0 obsoleto. Con il miglioramento dei motori a reazione e dei missili terra-aria, il fragile caccia a razzo, dalla breve autonomia, non aveva pi\u00f9 alcuna utilit\u00e0.<\/p>\r\n<p>Un progetto pi\u00f9 grande, dotato di radar, l&#039;SR.177, fu concepito per la RAF, la Royal Navy e persino per la Germania Ovest, ma venne anch&#039;esso cancellato. La Saunders-Roe non costru\u00ec mai pi\u00f9 un altro caccia. Oggi l&#039;unico SR.53 sopravvissuto, l&#039;XD145, si trova tranquillamente al RAF Museum di Cosford: un elegante e splendido esempio di ci\u00f2 che sarebbe potuto essere, risalente alla breve e strana era in cui la Gran Bretagna progett\u00f2 di difendere i propri cieli con i razzi.<\/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\/xHlUlZw8P48\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;border-radius:8px\" allowfullscreen><\/iframe><\/div>\r\n\r\n<p style=\"font-size:13px;color:#777;font-style:italic;text-align:center\">Un filmato didattico del periodo bellico sul Messerschmitt Me 163, l&#039;intercettore a razzi da cui l&#039;SR.53 eredit\u00f2 l&#039;idea.<\/p>\r\n<p style=\"font-style:italic;color:#555;margin-top:20px\">Fonti: Derek Wood, \u201cProgetto cancellato\u201d; Pete London, \u201cCaccia a razzo Saunders-Roe\u201d (Aeromobile); Museo RAF di Cosford; Flight (1957); Wikipedia.<\/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\">Post correlati<\/p>\r\n<p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/it\/sncaso-so9000-trident-intercettore-a-razzo-francese\/\">Il jet da record che la Francia ha tenuto segreto<\/a><\/p>\r\n<p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/it\/messerschmitt-me-163-komet-rocket-fighter-that-killed-its-pilots\/\">Il Me 163 Komet: il caccia a razzo che si mangiava i piloti<\/a><\/p>\r\n<p style=\"margin:4px 0\"><a href=\"https:\/\/migflug.com\/afterburner\/it\/fairey-delta-2-record-mondiale-di-velocita-1132-mph-182-km-h-peter-twiss\/\">Il jet britannico che volava pi\u00f9 veloce del sole<\/a><\/p>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>In the mid-1950s, Britain faced a nightmare: waves of Soviet bombers climbing ever higher and flying ever faster, each one potentially carrying an atomic bomb. Conventional fighters simply could not climb quickly enough to catch them in time. So British engineers reached for a radical answer &mdash; a fighter that would rocket almost vertically into [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":9746643,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[666,664],"tags":[],"class_list":["post-9747195","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 v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Saunders-Roe SR.53: Britain&#039;s Rocket Interceptor<\/title>\n<meta name=\"description\" content=\"The Saunders-Roe SR.53 was a British rocket-and-jet interceptor that flew beautifully, then was cancelled by the 1957 Defence White Paper. 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