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401 - 420 of 781 Comments Last updated Sunday Jul 27
PHD2

Minneapolis, MN

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#438
Mar 21, 2013
 
If Boeing doesn't figure-out the battery problem soon, then the parking problem may require Boeing to fly the planes to Mojave Airport in the southern california desert. Many of Boeing's planes have left the factory for this airport in the past. It would be unique to see about a hundred 787's sitting all in a line waiting for the "Energizer Bunny" to save them from extinction.
PHD2

Minneapolis, MN

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#439
Mar 21, 2013
 
I may be stupid but I have worked in the African bush... Why do they not just sacrifice one seat (planes are very rarely 100% full anyway) and use the weight saved to link enough good old lead/acid tractor batteries to replace these skinny lithium-ion fire-starters.

Lithium is what you give nutters in the nuthouse to calm them down enough to put them back on the streets.

It works, the only side-effect are those little spit-balls at the corner of the mouth.

My guess is that some of the Boeing crew first got acquainted with it that way....

Well that would certainly work, but that is the "But even if the FAA approves Boeing’s proposal, the new batteries would still need to be tested and certified. This will take months." process referred to in the article. Everything on a plane has to be FAA certified before it flies. They can't change anything - coffee maker, the inflight entertainment system, seat design, seat layout, without FAA certification. They are looking at June, best case, to fly again.

In one of the other articles in TE about this, they said the savings of using Li-ion were something along the lines of 40-50kg (IIRC). That's not even a full seat ... just a wee bit of cargo.
Bushwhacker

Seattle, WA

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#440
Mar 21, 2013
 

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The guy who misspells and acts like a moron, should be called in IMMEDIATELY.... Learn to spell flammable and you're IN !!! LMAOROTFU~!
PHD2

Minneapolis, MN

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#441
Mar 21, 2013
 
A small number of Lithium cobalt batteries self destruct by spontaneous combustion, with no explanation ever found for the failures. Its far fetched, but could a cosmic ray penetrate and damage the separator and be the catalyst causing eventual cell failure? Cosmic rays have energy levels up to 50 joules which, if released at a concentrated spot, could cause significant damage. Cosmic rays are known to cause occasional electronics failures and computer memory errors
Bushwhacker

Seattle, WA

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#442
Mar 21, 2013
 

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Blather, by a incomplete "man"....
PHD2

Minneapolis, MN

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#443
Mar 21, 2013
 
Elon Musk, the man behind Tesla and Space X (and battery expert!)has already said that “Unfortunately, the pack architecture supplied to Boeing is inherently unsafe.” The large ion battery cells are prone to overheating and fires; the only way to make ion batteries work is to use multiple tiny cells as they found out at Tesla. I don't get Boeing's attitude about not listening to outside experts who already have figured out a way to make ion batteries work in electric cars and space vehicles. Elon Musk:
“They [Boeing] believe they have this under control, although I think there is a fundamental safety issue with the architecture of a pack with large cells.It is much harder to maintain an even temperature in a large cell, as the distance from the center of the cell to the edge is much greater, which increases the risk of thermal runaway.” Musk’s assessments of battery cells were confirmed by Donald Sadoway, a professor of electrical engineering at the Massachusetts Institute of Technology.“I would have used the same words,” says Sadoway.“I’m glad someone with such a big reputation put it on the line.”
PHD2

Minneapolis, MN

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#444
Mar 21, 2013
 
Boeing technicians proposed revamping the 787’s batteries by insulating their cells to prevent short-circuiting and overheating."

Proposing a solution when the problem has yet to be established smacks of desperation rather than a concern for passenger safety. The FAA should tell them where to stick it.
PHD2

Minneapolis, MN

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#445
Mar 21, 2013
 
Stupid experts...

http://www.economist.com/blogs/gulliver/2013/...

Boeing knows best.

ONE MORE SHOT!!!
PHD2

Minneapolis, MN

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#446
Mar 22, 2013
 

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The 787 flys ODAY!!

WOOPEEE!!!!!!!!

The only people allowed on the 787 is crew..

The only areas allowed to fly over: UNPOPULATED.

Hint Hint: It's dangerous!!

Do YOU want to fly on a dangerous plane?
PHD2

Minneapolis, MN

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#447
Mar 22, 2013
 
NFW!!!
non-starter

Saint Paul, MN

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#448
Mar 22, 2013
 

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PHD2 wrote:
Boeing technicians proposed revamping the 787’s batteries by insulating their cells to prevent short-circuiting and overheating."
Proposing a solution when the problem has yet to be established smacks of desperation rather than a concern for passenger safety. The FAA should tell them where to stick it.
Insulation works two ways, it keeps excess heat out, but it would also keep excess heat in. The ceramic insulators may exacerbate the issue.

No root cause for battery failure has yet been found(or at least not released). Boeing should have retrofitted the 787's with nickel metal hydride(NiMH) systems, better energy density than lead acid, and fewer issues than lithium.
PHD2

Minneapolis, MN

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#449
Mar 22, 2013
 
The 787 flys ODAY!!

WOOPEEE!!!!!!!!

The only people allowed on the 787 is crew..

The only areas allowed to fly over: UNPOPULATED.

Hint Hint: It's dangerous!!

Do YOU want to fly on a dangerous plane?
Bushwhacker

Seattle, WA

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#450
Mar 22, 2013
 
PHD2 wrote:

The only areas allowed to fly over: UNPOPULATED.

LOOK OUT A 787 IS HEADED YOUR WAY RIGHT NOW!!!!
The guy who misspells and acts like a moron, should be called in IMMEDIATELY.... Learn to spell flammable and you're IN !!! LMAOROTFU~!

Hint, hint normal flight testing.

Of course, you're a LIAR !!!
PHD2

Minneapolis, MN

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#451
Mar 22, 2013
 
The 787 flys TODAY!!

WOOPEEE!!!!!!!!

The only people allowed on the 787 is crew..

The only areas allowed to fly over: UNPOPULATED.

Hint Hint: It's dangerous!!

Do YOU want to fly on a dangerous plane?

Not Me...
Bushwhacker

Seattle, WA

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#452
Mar 22, 2013
 
The guy who misspells and acts like a moron, should be called in IMMEDIATELY.... Learn to spell flammable and you're IN !!! LMAOROTFU~!

Hint, hint normal flight testing.

Of course, you're a LIAR !!!
Bushwhacker

Seattle, WA

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#453
Mar 22, 2013
 

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Maxamillion wrote:
<quoted text>
Only an idiot like you wouldn't understand the severity/complexity of the 787 failure. Unless they can fix the current design, not possible, they will need to do a redesign of the 2 battery packs and all associated control systems on the 787. Once they think they have a good design, for the second time, the new airplane must go through recertification and flight worthiness tests by the FAA.
All this rework may take 2+ years. Meanwhile the 787 assembly line may not be able to churn out new planes and AirBus may be able to ramp up and capture the entire market.
At that time Boeing will go broke.
TIME FLIES, HUH phd2 ???
PHD2

Minneapolis, MN

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#454
Mar 22, 2013
 
Flying today (passengers)?
Bushwhacker

Seattle, WA

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#455
Mar 22, 2013
 
PHD2 wrote:
Flying today (passengers)?
When have they ever flown passengers in flight testing ?? Oh right, you have no point and are usually wrong/stupid.
PHD2

Minneapolis, MN

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#456
Mar 22, 2013
 
Oh it's just being tested.

Like when a plane is new and hasn't been tested yet.

OK, the 787 is not ready for prime time.

WHY not?
Bushwhacker

Seattle, WA

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#457
Mar 22, 2013
 
It's being tested to work out any problems, are you a complete moron ??? The outsourced battery was a problem, like I say....UNION MADE is the ONLY WAY !!!

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