par Laurent Simon Dim 12 Juin 2016 - 18:02
EDIT : Oups, erreur d'inattention, cet article date (effectivement, Beo) d'octobre 2011 ! Je me suis laissé prendre parce que l'article était en marge d'un autre article, récent celui-là !
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Des infos sur ce qu'aurait pu être le successeur du 320,
mais repoussé à plus tard puisque le NEO offrait suffisamment d'avantages, plus vite.
An all new Airbus single aisle design is still out there, somewhere in the 2020s
https://blogs.crikey.com.au/planetalking/2011/10/06/an-all-new-airbus-single-aisle-design-is-still-out-there-somewhere-in-the-2020s/
"Airbus gave more clues at a briefing in Sydney today as to what it will do when it eventually launches an all new design to replace its single aisle A320 program.
The jet will feature very wide open rotor engines mounted at the rear, and exploit new materials technology to shape a wider, more fluid looking cabin that will make boarding and disembarking a much more convenient and less time consuming process.
It will, as a consequence break free from the long and often tightly packed tubular experience of short haul single aisle flight that is experienced today, and which will continue to be the lot of air travellers in Airbus’s impending NEO or new engine option makeover of its standard A320 line-up as well as in Boeing’s 737 MAX program.
... If we wanted 60% or more step changes or improvements in a whole range of characteristics, we knew we needed time, engineering resources and as much certainty as possible of how the program would be accepted by the airlines.
“We knew for example that we would need very wide or open rotor engines as wide as the fuselage of an A320 today, so at the very least we were contemplating a triple configuration of two enormous engines and the fuselage, so that of course lead us to rear mounted engines, innovations in the cabin, and a number of certification and rule making issues such as blade failure protection, ground clearance and other matters. “
He said these certification and design questions were not compatible with quick answers, but the NEO program, featuring wide diameter new technology engines from either CFM or Pratt & Whitney, did provide compelling benefits in the immediate future, required less engineering resources, and gave airlines a 15% efficiency step change as an affordable option in a design that was already extensively used."
Et sur les 737, et la possibilité d'utiliser un moteur plus gros (genre Leap 1A) que sur le 737 MAX :
"Williams expressed doubts about the state of the Boeing response to the A320 NEO program, describing the 737MAX line as ‘very much a paper plane’.
He drew particular attention to the MAX program’s limitations in terms of engine diameter, which is constrained by the ground hugging main gear architecture that has been a feature, and more recently, a draw back, in the 737 heritage.
“It will be interesting to see what Boeing does about this,” Williams said, leaving open the thought that further changes, and possibly delays, remain for that program.
"
Dernière édition par Laurent Simon le Dim 12 Juin 2016 - 18:50, édité 2 fois
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