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Anyone know what CPU Airbus is using???

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January 17, 2006 11:54:55 AM

or why Linux would be so slow and crashworthy?
It has to be Intel and overheating, no? :wink:

More about : cpu airbus

January 17, 2006 2:09:31 PM

You know, when you're on an airplane, you really don't want your seat crashing... 8O 8O 8O
January 17, 2006 5:18:18 PM

But when the cabin loses pressure, Intel Inside would keep you toasty!!! :lol: 
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January 17, 2006 5:27:33 PM

:lol:  Small comfort that...
January 17, 2006 6:08:38 PM

Just what's the reason for you to ask such a question?
Most(if not all) of the circuits in every of the planes you would fly with are backed up 2(or more) times. Don't worry. You should read more and see that most of the times it's pilot's mistake that has chrashed the plane.
And. The airplanes have some demands about the electronic components. To be reliable(simple, also easy to test and maintain). To be vibration resistant. And maybe some other that i'm not aware of. Why would someone put a Prescott in an Airbus?
Like if you give your child a hairdryer for a bathtub-toy+)))
January 17, 2006 10:40:26 PM

I've been working aircraft for the U.S. military for 15 years now. Been with the NTSB on several crash sites with-in the U.S. and 1 in the U.K.
everything that i have seen and inspected has started with maintenance practice. Simply put airlines are running the piss out of the planes and rushing maintenance to get the aircraft back in the air, while puting the customer in harms way! Most if not all crashes are caused by maintenance not following to proper procedures, and sometimes its a combo with the manufacture's design and the airline in charge of the maintenance result in the inpending failures that cause the crash! Not to be-little the maintenance personel but rather the pressure that is place on them to turn an aircraft by the airline!
So the pilots can only do with what they have to save the aircraft and people onboard! Most crashes happen on takeoff and landing which leaves only seconds to find the problem and soultion :!:

So I find your comment an insult SEPUKO. Its the details KNUB!
January 17, 2006 10:55:04 PM

I have to agree with you totally.
For every time you see a pilot error in a crash, you see a bunch of instances where a pilot has somehow managed to land a damaged product.
Not only are the maintenanc crews pushed to get the plane out of the barn, but they are sometimes saddled with "used" parts and may not be given all the updates for particular craft.
Tough job for bothe
January 17, 2006 10:56:32 PM

Lol, classic thread!
a b à CPUs
January 18, 2006 5:13:24 AM

Hehe, the dudes don't realize you're speaking of the entertainment console crashing!

Low power, low heat, low current draw, I bet their using VIA processors. Which would explain why the console runs slow even though Linux is supposed to put a light load on the CPU. A C3 1000 is after all slower in some respects than a K6-III 450.

As for system crashes, well, VIA would explain that too.
January 18, 2006 6:21:27 AM

Maybe i should've writed "people's mistake" instead of "pilot's". That shoud chill you a little bit.
a b 5 Linux
January 18, 2006 8:21:40 AM

Linux is not slow and it does not normally crash.

If you run Linux on crappy hardware you are guaranteed to get crappy results no matter how good Linux is.

They may be running the entertainment system on 386, 486 or 586 SBCs or worse yet on 100 or 200MHz ARMs for all we know.

Please do not make any derogatory comments about Linux without knowing the hardware specs and how the Airbus entertainment system works.

Is Linux perfect? NO!
Is Windows perfect? HELL NO!
Is any OS perfect? Absolutely NOT!

Most modern RedHat and other distributions do not run very well on older hardware any more - but they DO run. This is what older versions of Linux and embedded Linux are for!

Live long and prosper! :D 
a b 5 Linux
January 18, 2006 8:25:39 AM

Here here! :-) I agree.

PS IIRC the flight management system of the Boeing 767-xxx runs on an Intel 386. This is has nothing to do with the Airbus in-flight entertainment system however. I do not KNOW what they are using for their in-flight entertainment system or for their flight management system.
a b à CPUs
January 18, 2006 10:15:15 AM

These are fairly new jets, chances are they're running either some kind of embeded Intel processor or a C3. I'd put those chances right up there at even odds with any other slow processor.

Knowing the French, the C3 sounds likely.
a b 5 Linux
January 18, 2006 10:36:27 AM

Yeah it could very well be C3. The French prefer not to buy from US companies. They buy domestic whenever possible. If that's not an option they like to buy from EU countries or from one of their friends or allies.

My guess is they may be running on something manufactured under license by SGS-THOMSON Microelectronics / STMicroelectronics, Alcatel or some other French or Franco-European company.
a b à CPUs
January 18, 2006 10:41:14 AM

None of those are enemy competitors of U.S. industry though, like VIA is. Remember that the French are trying to be the thorn in the side of the U.S.
a b 5 Linux
January 18, 2006 10:56:21 AM

True!

Although I have to point out that sometimes airlines do not opt for the inflight-entertainment system, the default avionics or the engines the aircraft normally comes with.

Generally, there is usually an engine, avionics and other systems "bundle" the aircraft comes with by default and that is the one Airbus Industrie has control over. Then again, there are usually other such "bundles" besides the normal factory one.

It is not entirely uncommon to see Airbus aircraft with GE, PW or RR engines and even US avionics and secondary systems.

I know at least some airlines have ordered their airbus A-3xx aircraft with inflight-entertainment systems from Rockwell Collins [ US ], a huge name in avionics and aircraft systems.

Also there are 3rd party companies which will take any aircraft from any manufacturer and outfit it with systems from manufacturers based on the client's wishes. Provided you own the aircraft you can modify it any way you want with any systems you want as long as those systems are FAA certified or certified by the national and international aviation authorities under which your aircraft operates.
January 18, 2006 10:56:47 AM

Quote:
You know, when you're on an airplane, you really don't want your seat crashing... 8O 8O 8O


Actually, when I was going by JAL to Japan last time I noticed that their entertainment system is Linux based.
When browsing the movies and going back and forth between menus the system crashed and the message one got was "Your chair is being restarted".
This affected everyone pretty much but not at the same time. Was quite a laugh to see people's worried expressions.

Happenend a fair few times. My wife went few weeks ago on her own and then the system didn't even start. So she had to spend 11 hours without a film. Flight was delayed also because the system crashed severely and noone could bring it back up.

So much for stability I suppose...
a b 5 Linux
January 18, 2006 11:22:56 AM

A badly implemented system using ANY operating system is guaranteed to experience issues of varying severity!

A well built and well implemented system based on Linux is normally very fast, reliable, relatively very secure and does NOT crash.

I am not certain what is causing all these problems however using computers in passenger aircraft is much more complicated that you may realize.

Aircraft and worse yet spacecraft are actually a rather hostile environment for most computers and computer parts.

If you take a look at most computer specifications you will see that most computers are not normally certified to operate above 10,000 ft or 3,048 meters.

Aircraft are operating in high vibration environments with constantly changing environmental factors such as temperature, pressure and humidity and are exposed to much more cosmic and solar radiation than we are on earth because the atmosphere is much thinner and thus provides less protection at high altitude. They are also exposed to RF radiation which may cause interference or undesired operation.

On top of all that they are used and abused by the flying public and are probably operated in a high cycle environment since I'm sure the systems are powered up and down several times a day depending on the flight schedule.

In such an environment normal rules do not necessarily apply.

You cannot attribute the quality or lack thereof of a system such as this to Linux.

Just because this particular implementation of a Linux system appears to suck that does not mean all Linux systems suck!

You cannot make that association or that generalization. That is unwarranted and unfair.

I will reiterate once again that:

A badly implemented system using ANY operating system is guaranteed to experience issues of varying severity!
January 18, 2006 1:34:32 PM

I never implied that Linux sucks. It was simply something different from your everyday BSOD.
Especially the message "Your seat is restarting"...
a b 5 Linux
January 18, 2006 2:17:52 PM

That is hilarious :D 

I wasn't saying you did but it is easy for some people to get the wrong impression about something so I wanted to clarify things a bit.

Given that a lot of aircraft are having maintenance problems, I am wondering if the problem was a lot more serious than just the entertainment system not operating properly.

The flight might have been delayed due to a more serious maintenance problem perhaps the power distribution system, APU or other similar trouble.

Live long and prosper
!