The Saunders-Roe SR.45 Princess was a British flying boat aircraft built by Saunders-Roe, based in Cowes on the Isle of Wight. The Princess was the largest all-metal flying boat ever constructed. The project was cancelled after having produced three examples, only one of which flew. By the mid-1950s, large, commercial flying boats were being overshadowed by land-based jet aircraft. Factors such as runway and airport improvements added to the viability of land-based aircraft, which did not have the weight and drag of the boat hulls on seaplanes nor the issues with seawater corrosion.
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| - Saunders-Roe Princess (de)
- Saunders-Roe Princess (en)
- Saunders-Roe Princess (pt)
- Saunders-Roe Princess (ru)
- Saunders-Roe SR.45 (fr)
- Saunders-Roe SR.45 Princess (it)
- サンダース・ロー プリンセス (ja)
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| - Il Saunders-Roe SR.45 Princess, o Saro SR.45 Princess, era un Idrovolante di linea britannico che volò per la prima volta nell'agosto 1952.Realizzato in 3 esemplari rimase allo stadio di prototipo. Rappresentò l'ultimo sviluppo britannico nel settore dei grandi idrovolanti di linea.Otto dei dieci motori erano in coppia. (it)
- Saunders-Roe SR.45 Princess — тяжёлый британский гидросамолёт-летающая лодка. Разработан компанией Saunders-Roe. Первый полёт — 1952 год. Построено три самолёта. (ru)
- The Saunders-Roe SR.45 Princess was a British flying boat aircraft built by Saunders-Roe, based in Cowes on the Isle of Wight. The Princess was the largest all-metal flying boat ever constructed. The project was cancelled after having produced three examples, only one of which flew. By the mid-1950s, large, commercial flying boats were being overshadowed by land-based jet aircraft. Factors such as runway and airport improvements added to the viability of land-based aircraft, which did not have the weight and drag of the boat hulls on seaplanes nor the issues with seawater corrosion. (en)
- Le Saunders-Roe SR.45 Princess est un hydravion de ligne à coque décamoteur réalisé par le constructeur britannique Saunders-Roe. Le Princess est le plus grand hydravion tout en métal jamais construit.
* Portail de l’aéronautique Portail de l’aéronautique
* Portail du Royaume-Uni Portail du Royaume-Uni
* Portail des années 1950 Portail des années 1950 (fr)
- サンダース・ロー プリンセス（Saunders-Roe Princess）は、イギリスのサンダース・ロー社が生産していた長距離旅客飛行艇。画期的な大型ターボプロップ飛行艇であったが、誕生時には旅客用飛行艇の時代は終わっており、試作機3機のみで終わった。 (ja)
- Die Saunders-Roe (Saro) SR.45 Princess war ein großes Flugboot. Unmittelbar nach dem Zweiten Weltkrieg begann Saunders-Roe mit der Entwicklung. Der Erstflug verzögerte sich bis zum August 1952, da Schwierigkeiten mit den Triebwerken auftraten, die auch bis zur Einstellung des Projekts nicht behoben werden konnten. Um die benötigten zehn Triebwerke überhaupt in den Tragflächen unterbringen zu können, wurden die dem Rumpf nächsten acht zu je zwei gekoppelt (d. h. zwei Triebwerke treiben jeweils ein gegenläufiges Propellerpaar an, ähnlich der Bristol Brabazon). (de)
- O SR.45 Princess foi um hidroavião turboélice monoplano octomotor, construído no Reino Unido pela Saunders-Roe, baseada em Cowes na Ilha de Wight. O Princess foi o maior hidroavião de metal de todos os tempos. Seu projeto foi cancelado após somente três exemplares terem sido construídos. (pt)
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| - + residual thrust at 10,000 rpm at sea level. (langString)
- *Maximum continuous power: + residual thrust at 9,500 rpm at sea level. (langString)
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| - Saunders and Saro Aircraft since 1917 British Flying Boats and Flight 1952 (langString)
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| - Le Saunders-Roe SR.45 Princess est un hydravion de ligne à coque décamoteur réalisé par le constructeur britannique Saunders-Roe. Le Princess est le plus grand hydravion tout en métal jamais construit. Il n'en fut produit que 3 exemplaires. Le projet a été annulé après avoir produit trois exemples, dont un seul a volé. Vers le milieu des années 1950, les grands hydravions commerciaux ont été éclipsés par les avions à réaction terrestres. Des facteurs tels que les améliorations des pistes et des aéroports ajoutés à la viabilité des avions basés à terre, qui ne possèdent pas le poids et la traînée des coques ni les problèmes de corrosion avec l'eau de mer.
* Portail de l’aéronautique Portail de l’aéronautique
* Portail du Royaume-Uni Portail du Royaume-Uni
* Portail des années 1950 Portail des années 1950 (fr)
- Il Saunders-Roe SR.45 Princess, o Saro SR.45 Princess, era un Idrovolante di linea britannico che volò per la prima volta nell'agosto 1952.Realizzato in 3 esemplari rimase allo stadio di prototipo. Rappresentò l'ultimo sviluppo britannico nel settore dei grandi idrovolanti di linea.Otto dei dieci motori erano in coppia. (it)
- The Saunders-Roe SR.45 Princess was a British flying boat aircraft built by Saunders-Roe, based in Cowes on the Isle of Wight. The Princess was the largest all-metal flying boat ever constructed. The project was cancelled after having produced three examples, only one of which flew. By the mid-1950s, large, commercial flying boats were being overshadowed by land-based jet aircraft. Factors such as runway and airport improvements added to the viability of land-based aircraft, which did not have the weight and drag of the boat hulls on seaplanes nor the issues with seawater corrosion. The project was delayed by difficulties with the Bristol Proteus engines. G-ALUN made 47 test flights between 1952 and 1954, including two appearances at the Farnborough SBAC Show. This work was carried out under a development contract for the Ministry of Supply, the intention being that this would lead to a contract for the aircraft from the flag carrier BOAC. Although the initial contract was successful, BOAC decided instead to develop land-based routes using the jet-powered De Havilland Comet. The three airframes were stored against possible purchase but when an offer was made it was found that corrosion had set in; as a result they were scrapped. (en)
- Saunders-Roe SR.45 Princess — тяжёлый британский гидросамолёт-летающая лодка. Разработан компанией Saunders-Roe. Первый полёт — 1952 год. Построено три самолёта. (ru)
- サンダース・ロー プリンセス（Saunders-Roe Princess）は、イギリスのサンダース・ロー社が生産していた長距離旅客飛行艇。画期的な大型ターボプロップ飛行艇であったが、誕生時には旅客用飛行艇の時代は終わっており、試作機3機のみで終わった。 (ja)
- Die Saunders-Roe (Saro) SR.45 Princess war ein großes Flugboot. Unmittelbar nach dem Zweiten Weltkrieg begann Saunders-Roe mit der Entwicklung. Der Erstflug verzögerte sich bis zum August 1952, da Schwierigkeiten mit den Triebwerken auftraten, die auch bis zur Einstellung des Projekts nicht behoben werden konnten. Um die benötigten zehn Triebwerke überhaupt in den Tragflächen unterbringen zu können, wurden die dem Rumpf nächsten acht zu je zwei gekoppelt (d. h. zwei Triebwerke treiben jeweils ein gegenläufiges Propellerpaar an, ähnlich der Bristol Brabazon). Aufgrund der Überschreitung des Etats von drei auf elf Millionen Pfund, anderen technischen Schwierigkeiten wie zum Beispiel Problemen mit der geschwindigkeitsabhängigen Servosteuerung und der Tatsache, dass die Zukunft in der Zivilluftfahrt den landgestützten Passagierjets gehören würde, verlor BOAC jegliches Interesse an dem Projekt. Es wurden insgesamt drei Exemplare gebaut; die letzte Princess wurde 1967 abgewrackt. (de)
- O SR.45 Princess foi um hidroavião turboélice monoplano octomotor, construído no Reino Unido pela Saunders-Roe, baseada em Cowes na Ilha de Wight. O Princess foi o maior hidroavião de metal de todos os tempos. Seu projeto foi cancelado após somente três exemplares terem sido construídos. (pt)
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