ACTUALITE Aéronautique : Suivi et commentaire de l\'actualité aéronautique
Et qui avait beaucoup contribué aux "RB" il y a 6-8 ans, des équipes encore en place 
...GE has signed a “definitive agreement” with Aerion for a joint study to define requirements for the three turbofan engines that will power the Mach 1.5 AS2 business jet. The agreement culminates two years of discussions.
But, he said too that considerable work lies ahead. It’s safe to say the engines will use or adapt many parts and technologies from existing GE commercial and military engines. Thrust requirements, noise limitations, specific fuel consumption, maintenance, technical support and cost are among the issues.
Other possible F414 improvements include efforts to reduce engine noise by using either mechanical or fluidic chevrons and efforts to reduce emissions with a new trapped vortex combustor.[6] Chevrons would reduce engine noise by inducing mixing between the cooler, slower bypass air and the hotter, faster core exhaust air. Mechanical chevrons would come in the form of triangular cutouts (or extensions) at the end of the nozzle, resulting in a "sharktooth" pattern. Fluidic chevrons would operate by injecting differential air flows around the exhaust to achieve the same ends as the mechanical variety. A new combustor would likely aim to reduce emissions by burning a higher percentage of the oxygen, thereby reducing the amount of oxygen available to bond with nitrogen forming the pollutant NOx.
) même si c'était pour tout juste la FAL, ou même le projet, 2-3 milliards de plus à trouver qq part Mais bon, en demandant 10% d'avances à chaque réservation ou vente ... 100 à 200 à fabriquer dans les rêves de Robert Bass, pour un avion qui coûtera entre 100 et 200 millions, à suivre donc ...$$$$Poncho (Admin) a écrit:Merci
Toujours du mal à me dire que cet avion n'est pas une blague...
...Aerion Corporation and GE Aviation have launched a formal process to define and evaluate a final engine configuration for the AS2 supersonic business jet.
The two companies will continue to participate in a formal and gated process to define a potential collaboration for an AS2 engine.
GE said the engine would enable supersonic flight over water and subsonic flight over land without regulatory changes.
Aerion / GE Supersonic Engine 2018 from Aerion Supersonic on Vimeo.
GE’s Affinity is a twin-shaft, twin-fan turbofan controlled by a next generation Full Authority Digital Engine Control
(FADEC) for enhanced dispatch reliability and onboard diagnostics. It is purposefully designed to enable efficient
supersonic flight over water and efficient subsonic flight over land, without requiring modifications to existing
compliance regulations. The engine is designed to meet stringent Stage 5 subsonic noise requirements and beat
current emissions standards.
GE’s Affinity features:
• Efficient performance throughout the full flight envelope with a high-altitude service ceiling of 60,000.
• An advanced twin-fan with the highest bypass ratio of any supersonic engine.
• A special, non-augmented supersonic exhaust system.
• A proven engine core adapted from GE's commercial airline portfolio with billions of successful and reliable hours of operational service.
• A durable combustor with advanced coatings for sustained high-speed operation.
• Advanced acoustic technology designed to meet or exceed regulatory requirements.
• GE’s additive design & manufacturing technologies to optimize weight & performance.
After two years of a preliminary study, GE Aviation and Aerion launched a formal process in May of 2017 to
define and evaluate a final engine configuration for the AS2 supersonic business jet. A GE Project team, supported
by a dedicated Engineering team, continue to work with Aerion in a formal and gated process. The next design
review is targeted 2020, signaling beginning of detailed design and test article production.
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par Beochien Mer 15 Juin 2016 - 10:56