Eideard

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Posts Tagged ‘Dreamliner

Boeing Dreamliner finally takes flight

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Daylife/Reuters Pictures used by permission

Fighting its way through more than two years of delays, Boeing’s latest aircraft, the 787 Dreamliner, took off on its maiden flight today in cloudy skies over Everett, Washington.

“We think it’s a game changer because it provides so much value to the customer,” Jim Albaugh, Boeing executive vice president and CEO, said in a CNN interview. “We think this is going to be a very efficient airplane. It’s going to change the way people travel…”

It’s more environmentally friendly, it’s more efficient, uses less fuel, it’s going to cost the operator less to fly, it’s going to allow the passengers to pay less and feel better when they land.”

Boeing’s claims of the Dreamliner’s much-touted efficiency are tied to its design. It’s the first major airliner to be made of mostly composite materials. Boeing has staked its reputation on claims that the aircraft’s relatively lighter, faster body will save airlines up to 20 percent in fuel costs.

The company also says the new material will hold up better to the wear and tear of flight than traditional aluminum. Boeing says it has orders for more than 850 of the planes, which officially sell for around $150 million each.

Depending on the configuration, the Dreamliner can seat between 200 to 300 passengers and can travel more than 2,500 nautical miles. The target market is carriers traveling point-to-point international routes.

Click the story link for a video. Another 9-10 months of shakedown testing and they can start delivering these critters.

The motorheads in this crowd who follow F1 and really high performance racing know about composite construction. I doubt the aircraft industry will spring for a McLaren-level safety bathtub for each passenger; but, the strength of materials is demonstrated numerous times each racing season.

Written by eideard

December 15, 2009 at 10:00 pm

Reported wing flaw in Boeing Dreamliner is more serious

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The wing damage that grounded Boeing’s new composite 787 Dreamliner occurred under less stress than previously reported — and is more extensive.

An engineer familiar with the details said the damage happened when the stress on the wings was well below the load the wings must bear to be federally certified to carry passengers.

In addition, information obtained independently and confirmed by a second engineer familiar with the problem shows the damage occurred on both sides of the wing-body join — that is, on the outer wing as well as inside the fuselage.

The structural flaw in the Boeing design was found in May during a ground test that bent the wings upward. Stresses at the ends of the long rods that stiffen the upper wing skin panels caused the fibrous layers of the composite plastic material to delaminate.

The damage at the end of each of the 17 long stiffening rods, called stringers, on each wing’s upper skin happened just beyond the aircraft’s “limit load,” which is the maximum load the wing is expected to bear in service…

Because the wing test fell short of the ultimate load target, the plane could have flown only under restrictions that would have severely limited the usefulness of a test flight.

It also helps explain why Boeing canceled the first flight planned for the end of June.

The fact that there is corresponding damage on the fuselage side of the wing join adds to the complexity of any fix and the time and cost involved in implementing it…

The way the stringers terminate and mate at the join, the focus of the problem, is Boeing’s responsibility and not that of its Japanese partners. Boeing will have to pay for the cost overruns.

The Dreamliner is two years late. Now.

Boeing officials say they will have a new schedule for first flight and delivery in another couple of months. On paper.

Written by eideard

August 2, 2009 at 2:00 am

Boeing share prices crater as debut flight postponed for 5th time

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Back into the garage, again…
Daylife/Getty Images used by permission

Boeing’s share price dropped by nearly 9 per cent in intraday trading yesterday after it postponed the initial test flight of its first new aircraft in more than ten years.

The company said that problems with the body of the revolutionary 787 Dreamliner had forced it to delay the test, which had been scheduled for this month.

Boeing said that it would be several weeks before it could announce a new test flight date or details on how far the delay would push back the delivery of the Dreamliner, which is the company’s first new aircraft since the 777 was developed more than a decade ago.

This marks the fifth time that the test flight has been postponed, damaging Boeing’s credibility when it is struggling with cancelled orders because of the economic downturn…

The aircraft was originally scheduled to make its first flight in summer 2007, with delivery to airlines by early last year, but the test has been delayed four times because of design or production problems.

With the economic downturn hitting business in the travel industry, airlines have cancelled their orders for 45 Dreamliners, although Boeing said this month that it had orders for more than 850 of the aircraft.

“Disappointing” is hardly the appropriate term.

When the world market is down to two firms competing at this size of passenger aircraft, delays give a giant boost to your competitor. In this case, the crew at Airbus. The 380 is rolling out the door.

Written by eideard

June 24, 2009 at 2:00 am

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