Dreamliner Flies, But Doubts Persist About Boeing's Batteries

NLPC ^ | May 29, 2013 | Paul Chesser

[jazusamo]

Ping

[ken5050]

If/ when(?) a 787 crashes..they might just as well turn over Boeing to the trial lawyers..

[jazusamo]

Sadly, I agree. It amazes me they’ve stayed with these batteries.

[Truth29]

So Boeing is telling the passengers to fly above an unpredictable bomb that they hope they have contained when it explodes.

[gura]

"“In some ways it almost doesn’t matter what the root cause was.”

Incredible

[jazusamo]

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[Baynative]

WA Ping

“In some ways it almost doesn’t matter what the root cause was.”

Might this picture fit with the quote? ----

[jazusamo]

Most appropriate.

[USNBandit]

It looks like the industry didn’t learn anything from all the years of NiCad thermal runaway issues.

[MichaelCorleone]

“The attitude that fires can be “contained” and that “it doesn’t matter” what caused the previous ones smacks of arrogance”

Kind of like ‘What difference does it make?’, eh?

BA just signed it’s own bankruptcy court docs...

[DJ MacWoW]

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[ArrogantBustard]

“In some ways it almost doesn’t matter what the root cause was.”

You gotta be $#!++!ng me! What insane PE signed off on this?

[BwanaNdege]

“It looks like the industry didn’t learn anything from all the years of NiCad thermal runaway issues.”

http://www.avweb.com/blogs/insider/AVwebInsider_DreamlinerFire_207979-1.html

“The Dreamliner’s Battery Fire”

I had a thermal run-away with a ni-cad installed in a Bell Jet Ranger. I made a night emergency landing in the bush in Uganda, spent the night while it cooled and managed to get it started in the morning. I made a safe 10 minute flight with the batt switched off to my base camp.

My problem was too infrequent deep cycling of the battery. Thankfully, that was something I could do in the bush with a bit of brass shear wire and a Honda 24v generator.

Aviation is always in search for a lighter way to store energy. Some older aircraft used a compressed air bottle. The Sikorsky CH-53 uses a hydraulic accumulator (Compressed nitrogen “spring”). I’m surprised that super-capacitors have not been used. I guess that the instant discharge if damaged in a crash is the problem.

[USNBandit]

The F-16 uses hydrazine to run an emergency generator, because if when you are having an emergency there is nothing better than adding in a chemical that can kill you or any personnel around your airplane.

[Vinnie]

They’re using electricity for de-icing? Resistance wires ?
That would take enormous amounts.

[jazusamo]

Evidently, according to Popular Science, I hadn’t read that article or read it anywhere else. You’re right, it would take a lot of juice.

[CodeToad]

Boeing is run by the MBA crowd and managing engineers.

[CodeToad]

And NOT managing engineers.