| dbo:abstract |
Το ελικόπτερο H-21 Workhorse χρησίμευε για την μεταφορά εξοπλισμού ακόμη και σε πολύ χαμηλές θερμοκρασίες (πράγμα δύσκολο για τα άλλα ελικόπτερα) χάρη στον μοναδικό σχεδιασμό του. Το H-21 συνέχισε να πετάει μέχρι περίπου το 1965 μετά τον πόλεμο του Βιετνάμ, όπου αντικαταστάθηκε από το . Παρ' όλα αυτά όμως η χρήση του συνεχίζεται μέχρι σήμερα για την μεταφορά στρατιωτών στο Αφγανιστάν. (el) Der Piasecki H-21 Workhorse (Werksbezeichnung: PD-22) war ein Transporthubschrauber aus US-amerikanischer Produktion. Er hatte zwei Hauptrotoren in Tandem-Konfiguration und konnte mit zwei Mann Besatzung bis zu 20 vollausgerüstete Soldaten befördern. Der H-21 wurde u. a. im Vietnamkrieg eingesetzt. Die ab 1958 angebotene Zivilversion wurde als Vertol 44 (später Boeing-Vertol 44) bezeichnet. (de) El Piasecki H-21 Workhorse/Shawnee fue un helicóptero estadounidense, el cuarto de una línea de helicópteros de doble rotor diseñados y construidos por la compañía Piasecki Helicopter (posteriormente Boeing Vertol). Llamado con frecuencia "plátano volador", era un helicóptero multipropósito, utilizando ruedas, esquís o flotadores. Fue usado para rescate en el Ártico porque tenía buenas prestaciones aun con bajas temperaturas. (es) Le Vertol H-21 (selon la nomenclature de l'US Air Force) ou le Piasecki Helicopter PD 22, est le premier hélicoptère lourd de transport utilisé en grand nombre dans des opérations militaires. Développé à partir de 1945 par Frank Piasecki et opérationnel dans les armées de plusieurs pays de la deuxième moitié des années 1950 jusqu'à la fin des années 1960, il possède deux rotors en tandem. Il reçoit plusieurs noms, tels que « Workhorse » (« cheval de trait ») ou « Shawnee », mais il est plus connu sous le nom de « banane volante » (« Flying banana »), en raison de sa forme destinée à empêcher les deux rotors d'interférer l'un avec l'autre. Le H-21 est une version améliorée des HRP-1 et HRP-2 Rescuer, et l'ancêtre du CH-47 Chinook. Il effectue son premier vol le 11 avril 1952. Le modèle cesse d'être opérationnel dans l'US Army en 1967 et dans l'armée française à la fin des années 1960. Quelques modèles sont conservés dans des musées français, dont un au musée de l'ALAT à Dax et un autre au Musée de l'Air et de l'Espace au Bourget, dans le hall de la Voilure Tournante. (fr) The Piasecki H-21 Workhorse/Shawnee is an American helicopter, the fourth of a line of tandem rotor helicopters designed and built by Piasecki Helicopter (later Boeing Vertol). Commonly called "the flying banana", it was a multi-mission helicopter, using wheels, skis and floats. The H-21 was originally developed by Piasecki as an Arctic rescue helicopter. The H-21 had cold-weather features permitting operation at temperatures as low as −65 °F (−54 °C) and could be routinely maintained in severe cold weather environments. (en) Piasecki H-21 Workhorse/Shawnee adalah sebuah helikopter Amerika, keempat dari garis tandem rotor helikopter dirancang dan dibangun oleh Piasecki Helicopter (kemudian Boeing Vertol). Umumnya disebut "pisang terbang", itu adalah helikopter multi-misi, memanfaatkan roda, ski, atau mengapung. H-21 pada awalnya dikembangkan oleh Piasecki sebagai helikopter penyelamat Arktik. H-21 memiliki fitur winterization memungkinkan operasi pada temperatur serendah -65 °F (-54 °C), dan dapat dipertahankan secara rutin di lingkungan cuaca dingin yang parah. (in) Il Piasecki H-21 Workhorse/Shawnee è un elicottero statunitense, il quarto di una serie di elicotteri a doppio rotore sviluppati e costruiti dalla Piasecki Helicopter (successivamente Boeing Vertol). Comunemente chiamato "banana volante", fu un elicottero multi missione che poteva essere equipaggiato con ruote, sci o galleggianti. L'H-21 fu originariamente sviluppato dalla Piasecki come elicottero per il salvataggio artico, e per questo scopo aveva delle caratteristiche specifiche che gli consentivano il funzionamento anche a -54 °C, e la manutenzione poteva essere effettuata anche in ambienti a temperature rigide. (it) De Vertol/Piasecki H-21 Shawnee was een van de eerste echte tandemrotor-helikopters die door de voormalige firma (later Vertol) werd gebouwd. Het toestel kent meerdere bijnamen, waaronder “workhorse” (werkpaard), "de banaan", en “rescuer” (redder). (nl) H-21 ワークホース/ショーニー（H-21 Workhorse/Shawnee）は、1940年代にアメリカ合衆国のパイアセッキ・ヘリコプター社（後のボーイング・バートル社）で開発された4番目のタンデムローター式ヘリコプターである。一般的に「空飛ぶバナナ（flying banana）」とも呼ばれる本機は車輪、スキー、フロートを取り付けられる多用途ヘリコプターであった。H-21は低温の環境下でも良好な性能を発揮し、北極圏などでの救難活動にも使用された。 (ja) Piasecki H-21 Shawnee/Workhorse (znany też jako CH-21) – amerykański dwuwirnikowy śmigłowiec transportowy zaprezentowany w 1949 roku przez przedsiębiorstwo Piasecki Helicopter. Śmigłowiec z powodu charakterystycznego wyglądu określany był mianem "latającego banana". Śmigłowce H-21 Shawnee były wykorzystywane m.in. podczas wojny algierskiej przez Francuzów oraz podczas wojny wietnamskiej. (pl) Vertol 44, tidigare Piasecki H-21, är en medeltung transporthelikopter med tandemrotor som utvecklades och tillverkades mellan 1949 och 1967 av den amerikanska helikoptertillverkaren . 1956 bytte Piasecki Helicopter namn till Vertol (från 'Vertical takeoff and landing') och 1960 köpte Boeing upp företaget. Helikoptern konstruerades för att vara en räddninghelikopter under arktiska förhållanden och var väl anpassad till kallt klimat. (sv) Пясецкий CH-21 «Уорк Хорс»/«Шауни» (англ. Piasecki CH-21 Work Horse/Shawnee) — американский военно-транспортный вертолёт, использовавшийся вооружёнными силами США и ряда других стран в 1950—1960-х годах. (ru) H-21 馱馬/肖尼運輸直升機(英語：H-21 Workhorse/Shawnee)是一架由研製的雙旋翼縱列式結構旋翼直升機，為其系列中的第四款。綽號是“會飛的香蕉(英語：the flying banana)”。 H-21 最初是作為北極救援直升機，因此具有抗寒特性，它能在低至-65°F(-54°C)的溫度下運行，並且可以在嚴寒天氣環境中進行常規維護。其命名保持美軍以美洲原住民命名的傳統，源於肖尼族。 (zh) |
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https://www.flightglobal.com/pdfarchive/view/1955/1955%20-%200615.html https://web.archive.org/web/20101105085538/http:/www.redstone.army.mil/history/aviation/factsheets/ch21.html https://www.flightglobal.com/pdfarchive/view/1957/1957%20-%200838.html https://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201204.html |
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Το ελικόπτερο H-21 Workhorse χρησίμευε για την μεταφορά εξοπλισμού ακόμη και σε πολύ χαμηλές θερμοκρασίες (πράγμα δύσκολο για τα άλλα ελικόπτερα) χάρη στον μοναδικό σχεδιασμό του. Το H-21 συνέχισε να πετάει μέχρι περίπου το 1965 μετά τον πόλεμο του Βιετνάμ, όπου αντικαταστάθηκε από το . Παρ' όλα αυτά όμως η χρήση του συνεχίζεται μέχρι σήμερα για την μεταφορά στρατιωτών στο Αφγανιστάν. (el) Der Piasecki H-21 Workhorse (Werksbezeichnung: PD-22) war ein Transporthubschrauber aus US-amerikanischer Produktion. Er hatte zwei Hauptrotoren in Tandem-Konfiguration und konnte mit zwei Mann Besatzung bis zu 20 vollausgerüstete Soldaten befördern. Der H-21 wurde u. a. im Vietnamkrieg eingesetzt. Die ab 1958 angebotene Zivilversion wurde als Vertol 44 (später Boeing-Vertol 44) bezeichnet. (de) El Piasecki H-21 Workhorse/Shawnee fue un helicóptero estadounidense, el cuarto de una línea de helicópteros de doble rotor diseñados y construidos por la compañía Piasecki Helicopter (posteriormente Boeing Vertol). Llamado con frecuencia "plátano volador", era un helicóptero multipropósito, utilizando ruedas, esquís o flotadores. Fue usado para rescate en el Ártico porque tenía buenas prestaciones aun con bajas temperaturas. (es) The Piasecki H-21 Workhorse/Shawnee is an American helicopter, the fourth of a line of tandem rotor helicopters designed and built by Piasecki Helicopter (later Boeing Vertol). Commonly called "the flying banana", it was a multi-mission helicopter, using wheels, skis and floats. The H-21 was originally developed by Piasecki as an Arctic rescue helicopter. The H-21 had cold-weather features permitting operation at temperatures as low as −65 °F (−54 °C) and could be routinely maintained in severe cold weather environments. (en) Piasecki H-21 Workhorse/Shawnee adalah sebuah helikopter Amerika, keempat dari garis tandem rotor helikopter dirancang dan dibangun oleh Piasecki Helicopter (kemudian Boeing Vertol). Umumnya disebut "pisang terbang", itu adalah helikopter multi-misi, memanfaatkan roda, ski, atau mengapung. H-21 pada awalnya dikembangkan oleh Piasecki sebagai helikopter penyelamat Arktik. H-21 memiliki fitur winterization memungkinkan operasi pada temperatur serendah -65 °F (-54 °C), dan dapat dipertahankan secara rutin di lingkungan cuaca dingin yang parah. (in) De Vertol/Piasecki H-21 Shawnee was een van de eerste echte tandemrotor-helikopters die door de voormalige firma (later Vertol) werd gebouwd. Het toestel kent meerdere bijnamen, waaronder “workhorse” (werkpaard), "de banaan", en “rescuer” (redder). (nl) H-21 ワークホース/ショーニー（H-21 Workhorse/Shawnee）は、1940年代にアメリカ合衆国のパイアセッキ・ヘリコプター社（後のボーイング・バートル社）で開発された4番目のタンデムローター式ヘリコプターである。一般的に「空飛ぶバナナ（flying banana）」とも呼ばれる本機は車輪、スキー、フロートを取り付けられる多用途ヘリコプターであった。H-21は低温の環境下でも良好な性能を発揮し、北極圏などでの救難活動にも使用された。 (ja) Piasecki H-21 Shawnee/Workhorse (znany też jako CH-21) – amerykański dwuwirnikowy śmigłowiec transportowy zaprezentowany w 1949 roku przez przedsiębiorstwo Piasecki Helicopter. Śmigłowiec z powodu charakterystycznego wyglądu określany był mianem "latającego banana". Śmigłowce H-21 Shawnee były wykorzystywane m.in. podczas wojny algierskiej przez Francuzów oraz podczas wojny wietnamskiej. (pl) Vertol 44, tidigare Piasecki H-21, är en medeltung transporthelikopter med tandemrotor som utvecklades och tillverkades mellan 1949 och 1967 av den amerikanska helikoptertillverkaren . 1956 bytte Piasecki Helicopter namn till Vertol (från 'Vertical takeoff and landing') och 1960 köpte Boeing upp företaget. Helikoptern konstruerades för att vara en räddninghelikopter under arktiska förhållanden och var väl anpassad till kallt klimat. (sv) Пясецкий CH-21 «Уорк Хорс»/«Шауни» (англ. Piasecki CH-21 Work Horse/Shawnee) — американский военно-транспортный вертолёт, использовавшийся вооружёнными силами США и ряда других стран в 1950—1960-х годах. (ru) H-21 馱馬/肖尼運輸直升機(英語：H-21 Workhorse/Shawnee)是一架由研製的雙旋翼縱列式結構旋翼直升機，為其系列中的第四款。綽號是“會飛的香蕉(英語：the flying banana)”。 H-21 最初是作為北極救援直升機，因此具有抗寒特性，它能在低至-65°F(-54°C)的溫度下運行，並且可以在嚴寒天氣環境中進行常規維護。其命名保持美軍以美洲原住民命名的傳統，源於肖尼族。 (zh) Le Vertol H-21 (selon la nomenclature de l'US Air Force) ou le Piasecki Helicopter PD 22, est le premier hélicoptère lourd de transport utilisé en grand nombre dans des opérations militaires. Développé à partir de 1945 par Frank Piasecki et opérationnel dans les armées de plusieurs pays de la deuxième moitié des années 1950 jusqu'à la fin des années 1960, il possède deux rotors en tandem. Il reçoit plusieurs noms, tels que « Workhorse » (« cheval de trait ») ou « Shawnee », mais il est plus connu sous le nom de « banane volante » (« Flying banana »), en raison de sa forme destinée à empêcher les deux rotors d'interférer l'un avec l'autre. (fr) Il Piasecki H-21 Workhorse/Shawnee è un elicottero statunitense, il quarto di una serie di elicotteri a doppio rotore sviluppati e costruiti dalla Piasecki Helicopter (successivamente Boeing Vertol). Comunemente chiamato "banana volante", fu un elicottero multi missione che poteva essere equipaggiato con ruote, sci o galleggianti. (it) |
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Piasecki H-21 (de) H-21 Workhorse (el) Piasecki H-21 (es) Piasecki H-21 (in) Vertol H-21 (fr) Piasecki H-21 (it) H-21 (航空機) (ja) H-21 Shawnee (nl) Piasecki H-21 (en) Piasecki H-21 Shawnee (pl) Piasecki H-21 (ru) Vertol 44 (sv) CH-21 馱馬/肖尼運輸直升機 (zh) |
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