https://www.easa.europa.eu/system/files/dfu/TCDS%20EASA.IM%20A%20120%20Issue12.pdf
Et le bruit aussi
Sans doute ... Si toutefois les clients sont convaincus.Poncho (Admin) a écrit:En attendant le -10 pour 2020
Boeing CEO Dennis Muilenburg: 737 MAX program is 'ahead of schedule & a little bit under budget,' demonstrating lessons learned from 787.
— Aaron Karp (@airkarp) 26 avril 2017
Boeing signals definitive 737 Max service entry comes in May. Original plan at launch was 3Q2017.
— Jon Ostrower (@jonostrower) 26 avril 2017
The LPT for the Leap-1B is designed by CFM joint venture partner Snecma and features titanium-aluminide blades, although the same material is not found in the discs that were affected by the quality issue, which was discovered during inspections in the manufacturing process.
Evidemment, l'appareil n'a encore été livré à aucune compagnie . Les avions d'essai suspendus de vol constituent toute la flotte !Poncho (Admin) a écrit:Pas d'AD
Boeing has made significant changes in the flight spoiler system – the Max has a new fly-by-wire spoiler system. An added benefit with the new design is also a reduction in weight. Spoilers improve in-flight roll performance and extend symmetrically as speed brakes on the ground to destroy lift and increase braking efficiency. The 737 flight spoilers rise on the wing with up aileron and remain faired on the wing with down aileron, and are initiated when the control wheel is displaced more than approximately 10°.
Another feature in the fly-by-wire spoiler system is the landing attitude modifier (LAM), which performs two functions. The first occurs when the flaps are in the 30 or 40 position. To maintain an acceptable nose landing gear contact margin, LAM creates a higher angle of attack by symmetrically deploying flight spoilers on approach to reduce lift. The amount of spoiler deflection depends on the approach speed and begins at approximately 10kt above Vref. With flaps at 15 to 30 and the thrust levers near idle, the system symmetrically deploys flight spoilers, to generate additional drag.
Poncho (Admin) a écrit:Au passage dans l'article d'aviationweek on apprend que :
- le rotor bow (déformation du rotor) est aussi un pb sur le LEAP1B (temporisation et moulin à avent si nécessaire...); comme c'est bizarre
- la poussée au ralenti est forte (faut utiliser les freins)