Bonsoir...
Et un Jens Flttau, pas trés tendre, ni optimiste côté retads du A350 ..
Hum, il y va assez fort, tout le monde en prend pour son grade !
Cette foi ci, les désign "Cabine", difficile de juger aussi drastiquement à ce stade ... m'enfin
Et aussi un mess dans le Digital Mock-Up ... HoHo, c'est nouveau !
Un mal pour un bien, si ca peut éviter le désastre du A380, c'est déjà qq chose de gagné!Et la litanie des chicanes, côté re-désigns mineurs ou majeurs avec les suppliers...parfois sous équipés !
A ce propos ne pas oublier que de nombreux désign, sont délégués, alors quand ça ne marche pas ... hum, à qui la faute, et qui paye!
Les mêmes types de PB qu'à rencontré le B787, espérons juste qu'ils ne soient pas de la même magnitude, Airbus était prévenu !
Le désign de base, la techno industrielle, les machines insuffisantes, ou l'incapacité sérieuse du sous traitant, et enfin le timing erronné ... c'est souvent mélangé et un peu glauque, comme pour GKN et son inner spar
ouarf !
Bon, la faute où pas à GKN, je ne sais pas, mas du retard qq part sur la ligne, avec l'assemblage de leurs pièces, c'est certain !
Le résultat est le même, du retard !
Une notion de coûts qui dérivent aussi ! Déjà 3-4 milliards de $ de débordement, hum ...qui fait les comptes ??
Tout à prendre au sérieux, à voir ... entre incident et accident il y a parfois qq nuances !
---------- A lire, Aviation Week, Jens Floteau le lien un extrait ------------
http://www.aviationweek.com/aw/generic/story_generic.jsp?channel=awst&id=news/awst/2012/03/12/AW_03_12_2012_p22-433856.xml&headline=Airbus%20A350%20Development%20Hitting%20Snags
Late last year, Airbus shifted its A350 schedule by six months. But increasingly, suppliers are expressing concerns that a more serious delay could be just around the corner.
Airbus will be forced to postpone its entry-into-service date by at least another year, due to the complex trickle-down effect of late design changes that is affecting various parts of the aircraft, but which is likely felt most painfully in the area of cabin installation, according to various industry sources. Costs are going up and supplier relations are being strained exponentially.
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The systems side is a nightmare,” says one CEO of a major Airbus supplier. “The interiors will be late by at least one year,” he believes. That does not mean that first flight is necessarily affected that much, because the initial flight tests will not need a functional cabin anyway. The full effect would not be felt until later in the flight-test campaign, when cabin testing is included.The massive amount of redesign and the resulting delays are also understood to have led to significantly higher development costs. There is no clear picture about the precise amount, and Airbus will not address the issue. But one executive believes the total overruns might by now have reached €3.5 billion ($4.6 billion). According to Airbus’s standard supplier contracts, additional costs up through the critical design review stage, which was reached for many individual parts last year, are to be covered by suppliers. But at least one Airbus partner—Diehl Aerosystems—now wants the manufacturer to participate in the cost overruns.
Diehl says it is in talks with Airbus regarding technical and commercial issues. A Diehl representative points out that the A350 is its single biggest development program and is its scale is challenging.
Several Diehl units are involved with the A350, including Diehl Aircabin, a joint venture with Thales and the former Airbus cabin plant in Laupheim, Germany. The apparent problems could also be linked to the transition from a former Airbus unit to an independent supplier, says an industry source. Cabin development engineers have historically been based in Hamburg, while the Laupheim factory was mostly dedicated to implementing pre-developed designs.
At the time of the sale, Airbus was believed to have pushed through significant cost-improvement targets that resulted in lower prices. Neither side is willing to comment.
There have been changes to aircraft geometry and component location, concedes a senior Airbus official. But, he adds, the changes are typical for a development program. Sometimes those changes fall to the supplier who can most easily implement them, given planning maturity, he argues. He declined to specify whether Diehl was in that category.
Engineering work based on a joint digital mockup (DMU) should also help keep all participants on the same level, particularly when it comes to design changes, Airbus argues. But one industry source claims that the DMU itself is “in a big mess.”Airbus also refutes claims that the A350 schedule is already behind. The official says that, so far, the manufacturer is on track to meet all the program milestones after the latest schedule revision.
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But GKN, another significant A350 supplier, says the A350 is “challenging,” both technically and in terms of schedule. CEO Nigel Stein recently told reporters that the company was working “incredibly hard,” but he would not predict a service-entry date. That’s a matter for Airbus to sort out, he stated.
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JPRS