Update on 787 Battery Problems

That's just a bunch of hysteria. Boeing is adapting a containment enclosure Eagle-Picher developed to enable Cessna to get their business jets sportin g a LiFePO4 back into the air with FAA approval. They have a demo video of a 30AH battery explosion and it is a non-event with their container.

Reply to
bloggs.fredbloggs.fred
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Really? Show us where any investigation has found anything at all wrong the charging system.

Reply to
bloggs.fredbloggs.fred

28-29,

and

that

with

test the charger

used a battery

something weird

again.

Worse the second shuttle loss was caused by an incorrect and inappropriate solution to the first loss. Totally disgusting.

?-)

Reply to
josephkk

28-29,

and

that

with

test the charger

used a battery

Yep; there is a short anglo-sxon monosyllable that covers it.

?-)

Reply to
josephkk

That is pretty much the way i read it as well.

Management often gets a "piece of the action" on some big contracts, like this one. Severe self interest for there to be "no problem" with the product.

?-)

Reply to
josephkk

fred bloggs wrote

Not when it comes to Lithium-Ion. Have you seen footage of Li-Ion or Lipo fires? Even the tiny little ones used by RC model fans make some pretty amazing fires!

Are you changing goalposts here or is Boeing?

How much heavier per Amp-Hour is the less volatile LiFePO4 chemistry?

"EaglePicher Technologies, of Joplin, Missouri, passed tests modeled on DO-311, but used a less volatile chemistry than Boeing, known as lithium-iron phosphate.

"To successfully pass the containment (test), we needed iron phosphate," Ron Nowlin, general manager of aerospace systems for EaglePicher, said in an interview earlier this year."

Reply to
Greegor

Leon pointed out a SNAFU with the BCU schematics.

Securaplane acknowledged the SNAFU with the schematics.

A schematic SNAFU up would halt a military aviation contract wouldn't it?

Isn't that enough to be a fail in aviation electronics going on a 300 to 400 seat airliner?

Reply to
Greegor

That's something else about that freak. He is the first and one and only pe rson to find the crazy "error" , a dead short, on the schematic, that someh ow and mysteriously was absent from board and assembly drawings. How much p lainer does it have to be before anyone realizes the freak was responsible for it!

Reply to
bloggs.fredbloggs.fred

Don't worry yourself to death over it, and let Boeing take care of it. I'm sure whatever they come up with will be tested to the extreme....

Reply to
bloggs.fredbloggs.fred

fredbloggs wrote

Yeah, Boeing would never rush it to delivery to Japan Airlines unless it was working perfectly! (sarcasm)

G > Leon pointed out a SNAFU with the G > BCU schematics. G > Securaplane acknowledged the SNAFU G > with the schematics. G > A schematic SNAFU up would halt a G > military aviation contract wouldn't it? G > Isn't that enough to be a fail in aviation G > electronics going on a 300 to 400 seat airliner?

fred bloggs wrote

Later revisions, after he was gone, sure! But they admitted that the revisions he was talking about had the short.

fred bloggs wrote

You've got to be really obsessed with hating Leon to use such pretzel logic to badmouth him.

Have you looked at any of the Youtube videos of Lipo fires?

Even the little RC ones go up like magnesium flares!

One of the fixes proposed isolating individual cells, but that idea seems to backfire in that once a thermal runaway begins in even one cell, the exothermic reaction, light and heat resemble a magnesium flare so containment is close to impossible.

Long story short, somebody at Boeing truly and royally screwed up big time by specifying Lithium-Ion battery chemistry.

They should have known better back in 2005 when they specified it.

They should have reconsidered after the big fire in 2007.

But it actually made it onto runways!

Was that you, Fred Bloggs?

Reply to
Greegor

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