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Il y en a pour 5 mois je crois
SEATTLE, Dec. 9, 2013 /PRNewswire/ -- Boeing [NYSE:BA] announced today that low-speed wind tunnel tests have begun for the Boeing 777X, a major milestone in airplane development.
"This is the first major development milestone for the program since we launched the program last month," said Terry Beezhold, vice president and chief project engineer of the 777X program. "Wind tunnel testing will validate our performance models and generate a vast amount of data that our engineering teams will use to design the airplane in this phase of development."
Testing started on Dec. 5 at QinetiQ's test facility in Farnborough, U.K. Wind tunnel models allow experts to test many different configurations for the airplane. Low-speed tests measure airplane performance with a variety of high-lift surface settings to simulate takeoff and landing conditions.
The low-speed model currently being tested is a 0.05 percent scale model of the baseline 777X, measuring about 4.22 meters (166 inches) long with a wing span of 3.92 meters (154 inches). Hundreds of sensors are embedded in the model to measure pressure to determine the in-flight loads as well as provide valuable diagnostics of the aerodynamic performance of a given design.
Low-speed testing at the QinetiQ facility is expected to last approximately five months. Testing also will be conducted next year at the Boeing Transonic Wind Tunnel in Seattle to further validate 777X high-speed performance projections.
"We are on track to complete our top-level design in 2014 and reach firm configuration in 2015," said Beezhold.
Admin a écrit:Aller hop ça souffle
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The low-speed model currently being tested is a 0.05 percent scale model of the baseline 777X, measuring about 4.22 meters (166 inches) long with a wing span of 3.92 meters (154 inches). Hundreds of sensors are embedded in the model to measure pressure to determine the in-flight loads as well as provide valuable diagnostics of the aerodynamic performance of a given design.
Il y en a pour 5 mois je crois
Modèle à l'échelle 1/20 ème
Jon Ostrower a écrit:Boeing Co. BA -0.85% 's largest union presented a preliminary contract proposal to the aerospace giant to secure manufacturing of the planned 777X jetliner in Washington state, marking a fresh start to negotiations after the union overwhelmingly rejected a Boeing offer last month.
The union's proposal Wednesday from the International Association of Machinists and Aerospace Workers comes as Boeing has been seeking bids for work on the planned 777X from other states to build the planned jetliner. The deadlines for those bids was Tuesday.
"We tried to craft a proposal that would meet the needs of our members, while also ensuring the long-term success of the Boeing Co. in Washington state," Tom Wroblewski, the local district president of the machinists union, said in a statement late Wednesday.
Ray Conner, Boeing's top executive at its commercial unit, participated in talks Tuesday and Wednesday with local union leaders at the company's suburban Seattle offices, according to a statement on the union's website. The union leaders included some who pushed for rejection of Boeing's previous contract offer in the Nov. 13 vote, arguing that Boeing was demanding excessive concession on pensions and other issues, according to a person familiar with the talks.
The union, which represents more than 32,000 Boeing employees, didn't disclose terms of its new contract offer. Mr. Wroblewski called the new talks with Boeing "respectful and constructive," and said he expects Boeing to respond to the proposal Thursday.
Boeing has long envisioned building the 350 to 400-passenger 777X in Washington state, its main manufacturing hub for commercial jets. Analysts say building it elsewhere could add costs and potentially delay its targeted delivery date of 2020 for the plane.
A Boeing spokesman wasn't immediately reached to comment on the union's new offer late Wednesday. A spokesman said earlier that the company continues "to look at all of our options" for the 777X site selection. "As we start evaluating the proposals, we'll engage with all interested parties."
Some analysts have seen Boeing's public search for other possible locations for 777X manufacturing as a way to pressure the union to reconsider its contract. More than a dozen states were considering proposals for the work, which could bring up to 8,500 jobs, according to people familiar with the planning. Washington's legislature already has authorized $8.7 billion in tax breaks and other sweeteners to Boeing to build the plane there.
Boeing's initial proposal called for major shifts in the wage structure, increased health-care costs and the transition from a defined pension to a 401(k) style retirement system. Many union members were angry at their national leadership for its perceived support of the contract.
The union's international president, Tom Buffenbarger, sent a four-page letter to members of the union dated Dec. 4 that defended the union's handling of the secret negotiations that led to that proposal and the Nov. 13 vote. The letter also appeared to distance Mr. Buffenbarger from any further talks.
“However, the price Boeing demanded was too high,” he continued. “Our senior leadership team could not recommend Boeing’s counter-offer.”
“On Wednesday, the union had offered Boeing a preliminary contract proposal that would have guaranteed the company a total of 16 years of labor peace by extending the current contract, which has been in place since 2008, until 2024.
“Boeing’s leadership has said time and again during this process that this was a top priority, and we were wiling to give them that,” Wroblewski said. “We were willing to give them labor peace.”
However, Boeing’s counter-offer on Thursday was mostly unchanged from the proposal that Machinists had rejected by a 2-to-1 margin on Nov. 13, demanding steep concession in retirement and health benefits while limiting future pay increases.
Boeing’s offer Thursday was contingent on union leadership recommending acceptance, Wroblewski said.
“This we could not do,” he said. “Our members had already rejected this.”
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