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Airlines Balking at Latest A350 Design | |
2007-05-31 | |
Aircraft manufacturer Airbus, already struggling with delays to its A380 superjumbo, now faces problems with its A350 long-range widebody aircraft due to customer dissatisfaction with the current design.
The customers have called on Airbus to modify its design of the fuselage by baking the body, made out of carbon-fiber composites, on a huge mold, as Boeing does with its 787 Dreamliner, instead of riveting sections together. The current design's use of separate sections increases the maintenance costs, the airlines argue. To be able to burn the entire fuselage in giant ovens -- called autoclaves -- Airbus would have to invest in new technology and infrastructure, the newspaper reports. However, an Airbus spokeswoman rejected the reports of a design rethink. "We are working on the basis of the existing designs," she told the Süddeutsche Zeitung, adding that everything else was pure speculation. She also dismissed reports that Airbus is planning to announce a new change of strategy during the Le Bourget airshow in France in mid June. The development costs for the A350 have already doubled to more than €10 billion. Originally the company had only wanted to upgrade its Airbus A330 jets, but when customers were unimpressed and demanded a wider body, it went back to the drawing board and came up with the Airbus A350 XWB. Even based on the existing plans, the new A350 model won't be ready until 2013, a good five years later than Boeing's 787 Dreamliner. Not surprisingly the US aircraft manufacturer has received a considerably higher number of orders for the 787 than Airbus has for its A350. | |
Posted by:Steve White |
#6 Verlaine: the problem is the corrosion protection requirements for the metallic fasteners. The Carbon Fiber and rivets ( or bolts for that matter) are quite a bit apart as far as compatibility and the introduction of any liquid that can act as an electrolyte will cause the creation of a battery. and all batteries have an anode and a cathode. one gets consumed during the electron movement and the carbon is pretty stable so that leaves the fastener. since an aircraft also has lots of other things that must be attached to it, the selection of a satisfactory fastener is a bit more complex than walking into the local True Value and picking up a handful of 1/4-20 stove bolts. Titanium has shown promise as a fastener, but cost gets in the way. Yes the fastener industry will rebound but i would not be surprised to see some delivery delays, at least in the early days for the Dreamliner. I am still waiting for Boeing to announce the sale of some Dreamlifters to air freight companies. take market share away from the Anatov 124s. |
Posted by: USN. Ret. 2007-05-31 14:49 |
#5 And besides, Dr. Steve, a tube is statically indeterminate. Fourth-order differential equations are (or used to be) involved. |
Posted by: Bobby 2007-05-31 06:33 |
#4 How much more bad news can there be? It's a quagmire, I tellya! |
Posted by: Bobby 2007-05-31 06:31 |
#3 It looks like the A350 is heading for gutter. |
Posted by: Unoger Gonque4516 2007-05-31 05:55 |
#2 USN Ret. (thanks for your service, BTW), I assume the rivet shortage will only cause some delivery delays in the short run, and be resolved in the longer run? I like roses and cream with my Boeing - first stock I bought quite a few years ago, a few flat spells but has done nicely for some time and bids fair to continue its non-turkey-like ascent. I'd say with Airbus looking like it's beset with comprehensive problems, from management ethics to business judgement to technical execution, Boeing has some breathing room on the commercial side to complement its robust defense and space ops. |
Posted by: Verlaine 2007-05-31 01:34 |
#1 This is a bit misleading; the 787 still uses rivets, and the Boeing company is facing a shortage of fasteners. The carbon fiber structure requires specially coated fasteners to prevent the rivet from corroding and the rivet industry hasn't recovered capacity following the 9/11 collapse of the commercial aircraft market. the 787 sub assemblies being received @ Everett are held together with temp. fasteners that require replacement prior to delivery. how this will unfold is anybody's guess, but for now the Boeing company is still all roses and cream. (although involved to some degree w/ 787 stuff, this is all from open source news reports) |
Posted by: USN, ret. 2007-05-31 00:26 |