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Old 07-08-07, 05:20 PM   #1
VegaVixen
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Boeing 787 -- a sweet CF ride?

Check it, fellow cyclists. Wonder if they'll have CF beverage carts and lavs on board?
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Old 07-08-07, 05:43 PM   #2
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I wonder if it's going to cause any scarcity in materials that would raise the price of CF bikes.
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Old 07-08-07, 05:44 PM   #3
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wow...plane using carbon fiber for fuselage? Maybe I shouldn't be so scared to put my fat butt on a CF bike after all.
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Old 07-08-07, 05:47 PM   #4
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Originally Posted by Chief Engineer
"Composites don't fatigue,"

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Old 07-08-07, 06:09 PM   #5
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Yeah. They just suddenly crack-n-fail.
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Old 07-08-07, 06:17 PM   #6
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My uncle works for Boeing and was part of the design group (flight deck and exterior lighting) for the 787.
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Old 07-08-07, 06:28 PM   #7
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Hey, that's really cool!
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Old 07-08-07, 06:45 PM   #8
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Quote:
Originally Posted by donnamb
I wonder if it's going to cause any scarcity in materials that would raise the price of CF bikes.
Actually, Boeing has reportedly bought out all the spare and projected growth capacity in the carbon fiber industry for something like the next 5-10 years (it will take producers that long to catch up). This has driven the prices higher for companies that don't have fixed contracts.

However, I think the amount of CF used in bikes is small enough the effect won't be very noticeable on new frames. More of the cost is related to the design and the manufacturing of complex shapes than the less than 2 pounds (plus epoxy) of CF.


I don't know where all this "composites don't fatigue" crap is coming from. They do, but in a different manner than aluminum, and the directional nature of carbon fiber makes it a little easier to control.
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Old 07-08-07, 07:35 PM   #9
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Gee, no CF landing gear? Thats no fun.
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Old 07-08-07, 07:41 PM   #10
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These babies are carbon fiber too:


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Old 07-08-07, 07:45 PM   #11
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Quote:
Originally Posted by VegaVixen
Yeah. They just suddenly crack-n-fail.
Yup. I`ll ride on an old crappy 737. Hats of to Boeing. But call me a nervous-nelly I hope the 787 doesn`t start disapearing from radar screens
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Old 07-08-07, 07:46 PM   #12
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Originally Posted by giantcfr1
These babies are carbon fiber too:


These babies don`t go through pressurization cycles
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Old 07-08-07, 07:48 PM   #13
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Quote:
Originally Posted by glenng
These babies don`t go through pressurization cycles
Yes, that's true, but they look good and go very very fast.
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Old 07-08-07, 08:50 PM   #14
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Quote:
Originally Posted by aprilm
(flight deck and exterior lighting)
Carbon fiber plane with Flightdeck and a lighting system?



Sweet!
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Old 07-08-07, 09:08 PM   #15
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Composite structures on aircraft make for some difficult trouble shooting regarding failure and fatigue. On the other hand, I have great confidence in the Boeing engineers. If it ain't Boeing, I ain't going!
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Old 07-08-07, 09:23 PM   #16
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We beat Boeing to the punch . . .
Our Zona custom carbon fiber tandem now has 15,000+ miles on it.
Pedal on TWOgether!
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Old 07-08-07, 09:30 PM   #17
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X - Ha! Exactly...
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Old 07-09-07, 07:08 AM   #18
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I heard on the news this morning that Boeing have already sold 600 units and they haven't even had the first one in the air yet. If you order one today you'll get it around the year 2015.
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Old 07-09-07, 09:17 AM   #19
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Originally Posted by Chad's Colnago
I heard on the news this morning that Boeing have already sold 600 units and they haven't even had the first one in the air yet. If you order one today you'll get it around the year 2015.
is there a group buy available?
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Old 07-09-07, 03:58 PM   #20
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Hmmmmmmmmmmm,

A plastic airplane might be good for Boeing and their stockholders, but I feel pretty sure that in the event of a failure like the one below, the plastic plane will just be a big debris field on the landscape below.

http://en.wikipedia.org/wiki/Aloha_Flight_243

Naturally this type of failure is not likely again because of engineering studies, but there might just be something the engineers didn't think about studying.

Just sayin...........
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Old 07-09-07, 05:00 PM   #21
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Quote:
Originally Posted by LastPlace
Hmmmmmmmmmmm,

A plastic airplane might be good for Boeing and their stockholders, but I feel pretty sure that in the event of a failure like the one below, the plastic plane will just be a big debris field on the landscape below.

http://en.wikipedia.org/wiki/Aloha_Flight_243

Naturally this type of failure is not likely again because of engineering studies, but there might just be something the engineers didn't think about studying.

Just sayin...........
That failure was due to fatigue in the aluminium structure. Aluminium is unique in that it has no fatigue-limit below which it has infinite lifespan. ALL forces on aluminium will accumulate until a failure occurs. Steel, titanium, CF on the other hand, has a fatigue-limit where forces lower than this will allow the material to last indefinitely. CF has a fatigue limit close to its ultimate yield strength. So in a sense, it's hard to fatigue it without breaking it completely at the same time. For the same weight as aluminium, a CF plane will be much stronger with longer lifespan. Or for similar lifespan as aluminium, it can be lighter with higher performance.
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Old 07-09-07, 05:29 PM   #22
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Quote:
Originally Posted by VegaVixen
Yeah. They just suddenly crack-n-fail.


Oh wait.

Heh. At least my frame is weld-less. I'd take looks over performance any day.
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