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Faulty hardware found on shuttle



 
 
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  #81  
Old March 29th 04, 06:02 AM
Scott Hedrick
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Default Faulty hardware found on shuttle


"Dave Michelson" wrote in message
news:%XK9c.37119$R27.31744@pd7tw2no...
You know the reason that "millions of people" use Microsoft: They're

forced to
maintain compatibility with the MS Office file formats. Because these

file
formats are not Open Standards, no one can build applications that can

compete
with MS Office, handing MS a defacto monopoly.


Since I have on my desktop three non-MS Office suites that easily read the
Office files I produce, this is clearly demonstrable nonsense. My system,
which runs Win98SE, came with StarOffice. I also have OpenOffice and
EasyOffice (which I include on my real estate book's CD to use the MS Office
files I've created). I have yet to have a problem, and I use Office 2000.
I'm about to add another workstation to my office, and it will have
EasyOffice.

If businesses don't want to put forth the effort it would take to train
their employees in new software, it's hardly *MicroSoft*'s responsibility.
Apathy and inertia to change on the part of the free market simply means
that MicroSoft has provided what the market wants. There are alternatives
out there. It's clear that they *are not* better than what the public is
using now, or else the public would be using them.

In my case, my system came with StarOffice when I bought it in 2000. I was
already using MS Office 97 and later bought Office 2000. I started using
EasyOffice because it was free, and it was good enough for my third
workstation. Office 2000 came with Publisher, which I still use.

In other words, *the alternatives are available*, even at Wal-Mart, as is
information about them. The public has spoken, and continues to speak every
time they buy a system loaded with MS software. The alternatives aren't
better enough for the general public to give a rat's ass about them. They
aren't being *forced* to buy MS software, they choose to buy because it
isn't important enough to them to put forth the effort to check out the
alternatives. MS did not invent public apathy, it just talks advantage of
it, *which is a good thing* economically, and MS would be failing its
responsibilities to its shareholders not to encourage apathy.

I tried Linux. At the time it wasn't worth the learning curve and it did not
operate my most important software, Office 97. I'll try it again sometime
this year, with different software.


  #82  
Old March 29th 04, 06:05 AM
Scott Hedrick
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Default Faulty hardware found on shuttle


"Greg D. Moore (Strider)" wrote in message
news
My laptop is over 3 years old, only maintenance I do is apply patches as
required and defrag the disk. I can't remember if it's crashed at all or
not. I don't believe so.


My computers crash at least once a week, but that isn't MicroSoft's fault- I
keep screwing around with them. If I left them alone they'd run just fine.

More power!


  #83  
Old March 29th 04, 06:40 AM
Neil Gerace
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Default Faulty hardware found on shuttle


"Scott Hedrick" wrote in message
. ..

"Greg D. Moore (Strider)" wrote in

message
news
My laptop is over 3 years old, only maintenance I do is apply patches as
required and defrag the disk. I can't remember if it's crashed at all

or
not. I don't believe so.


My computers crash at least once a week, but that isn't MicroSoft's fault-

I
keep screwing around with them. If I left them alone they'd run just fine.


I've had XP Pro on my new machine, it hasn't crashed once. Certainly some
apps have, most notably Outlook Express 6, but not WinXP itself. It's much,
much better in that regard than Win98SE, 98 or 95B.


  #84  
Old March 29th 04, 06:42 AM
John Doe
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Default Faulty hardware found on shuttle

rk wrote:
OK, so you can't show any lineage for the FBW systems from Airbus.


Airbus introduced FBW to commercial aviation in 1987 on the A320. It wasn't
only the "FBW" portion that was new, but also the sophisticated flight
management software that automated much of aircraft/cockpit, and introduced
many error checking software to prevent pilot errors. (this was source of much debate).

But Airbus was fraught with problems (read: Bugs) in its software for the
first couple of years. (with Air France bearing the brunt of the problems).
And the FAA was caught with its pants down because it had given the A320 its
certificate without properly testing the software (since it hadn't designed
software testing methods.

Another issue was that of pilot training. Initial training focused on the
switches and blinking lights. But pilots ended up fighting the aircraft
instead of understanding how it worked. So Pilot training was changed to make
pilots better understand the aircraft philosophy.

Now, add a few years, during which Boeing had a lot of fun at Airbus's
expense, and when Boeing did get into the FBW fray, it had learned a lot from
the Airbus experience. During this time the FAA also had setup better testing
procedures to monitor software quality. So the 777 (and airbus's other planes)
were introduced with far fewer problems, and by now, you don't hear much
criticism of FBW because the technology has matured.

And that has what to do with technology development for the A380?


Airbus didn't have any government imposed deadlines to launch and deliver the
A380. It was a "nice project in study" for many years until they got
reasonably sure that they could do it. There was also questions of how it
would be financed.


NASA is in a different position now. It has been given a deadline of 2008 (and
hard deadline of 2010) to get a new vehicle up and running, and retire shuttle
by 2010. So it's got roughly 3.5 years to get that CEV/whatever on the pad
for its first test flight. And it has no budget to do that, and there are
expectations that it will magically and dramatically reduce flight costs.

Even if they are given massive amounts of money, I doubt that NASA could get
such a totally new vehicle up and running by the deadline. Unless, of course,
it becomes a race at any cost and without much concern for long term operating
costs (which was the case for the moon shots).
  #85  
Old March 29th 04, 06:53 AM
JazzMan
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Default Faulty hardware found on shuttle

Scott Hedrick wrote:

"JazzMan" wrote in message
...
Thus, the free market in action. Nobody is forced to buy MS products.

They

Sigh... Nevermind.


The way you folded when confronted with the facts is telling.


Sure, you can see it that way if you want. Me? I just see
it as arguing with a stone, it accomplishes nothing.

JazzMan
--
************************************************** ********
Please reply to jsavage"at"airmail.net.
Curse those darned bulk e-mailers!
************************************************** ********
"Rats and roaches live by competition under the laws of
supply and demand. It is the privilege of human beings to
live under the laws of justice and mercy." - Wendell Berry
************************************************** ********
  #86  
Old March 29th 04, 07:13 AM
Dave Michelson
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Default Faulty hardware found on shuttle

Jorge R. Frank wrote:

And Thank GOD for that. The mere thought of Microsoft-generated code
running something as expensive as the Shuttle gives me cold shivers.


Hate to break it to ya, but MS code does run on the shuttles. Granted, it's
on the crew's laptop PCs and not the main flight computers, and it's not
trusted for anything critical, but it's there.


Jorge,

You might re-read his post. He was referring to code that "runs the shuttle",
not code that just happens to be going along for the ride.

--
Dave Michelson



  #87  
Old March 29th 04, 07:58 AM
John Doe
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Default Faulty hardware found on shuttle

Mary Shafer wrote:
You do know, don't you, that it's still got to prove itself as being
certifiable, economic to build, economic to fly, and economic to
maintain? All the predictions in the world won't help if the airplane
misses any of those goals.


Correct. But the big difference is that if the 380 sinks instead of flies, it
is Airbus that will bear the wrath of bankers wanting their money back, and
airlines will just go shop elsewhere. Airlines have negotiated a fixed price
with certain performance garantees and certain garantees on cost of operation.
But if it does meet its goals, Airbus will deliver at least 100 of the beasts
before the end of this decade. (It has sold nearly 130 by now).

Now, if NASA were to choose a disposable vehicle, perhaps it could sign deals
with Boeing to buy 100 vehicles over a period of 10 years at a fixed price.

Lets look at the ET for the shuttle. I realise they are a technical problem
for Columbia. But from a business point of view, aren't those as close to
"commodity product" as one can get ?

As I recall, one of the A380 issues was manufacturing the skin. In
order to be strong enough, it has to be quite thick, so thick that
it's more like plate. This means that different methods have to be
used to shape it, as the usual tooling doesn't work on plate.


What I had heard was that they developped new manufacturing techniques to
produce not thicker sheets, but rather much larger in order to reduce
joints/riveting (where much fatique occurs). They also implemented cold
welding techniques to bond sheets together. (Still possible that it will be thicker).

I believe that surface of the main wings will be made of a single sheet of
aluminium. (except for moving surfaces, of course).
  #88  
Old March 29th 04, 08:21 AM
Mary Shafer
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Default Faulty hardware found on shuttle

On Mon, 29 Mar 2004 01:42:27 -0400, John Doe wrote:

Now, add a few years, during which Boeing had a lot of fun at Airbus's
expense, and when Boeing did get into the FBW fray, it had learned a lot from
the Airbus experience. During this time the FAA also had setup better testing
procedures to monitor software quality. So the 777 (and airbus's other planes)
were introduced with far fewer problems, and by now, you don't hear much
criticism of FBW because the technology has matured.


You know, you can say pretty much the same thing about the F/A-18 and
the F-16. GD/Lockheed got to solve a lot of the operational FBW
problems on the F-16 and McAir took advantage of that when they built
the F/A-18.

Of course, Dryden had solved the basic FBW problems with the F-8 DFBW.
So much so, in fact, that GD only went with FBW because of our
success.

Now FBW is old hat but I can remember when it was a Big Deal and we
were considered to be real risk takers for not having a mechanical or
hydraulic backup on the F-8.

And that has what to do with technology development for the A380?


Airbus didn't have any government imposed deadlines to launch and deliver the
A380. It was a "nice project in study" for many years until they got
reasonably sure that they could do it. There was also questions of how it
would be financed.


You do know, don't you, that it's still got to prove itself as being
certifiable, economic to build, economic to fly, and economic to
maintain? All the predictions in the world won't help if the airplane
misses any of those goals. Look at the A340 on the Asian routes and
all the problems it has for an example of a seemingly minor glitch in
performance having a major effect in operation.

As I recall, one of the A380 issues was manufacturing the skin. In
order to be strong enough, it has to be quite thick, so thick that
it's more like plate. This means that different methods have to be
used to shape it, as the usual tooling doesn't work on plate.

Mary

--
Mary Shafer Retired aerospace research engineer

  #89  
Old March 29th 04, 09:12 AM
Paul Blay
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Default Faulty hardware found on shuttle

"Marvin" wrote ...
Windows is a very fancy system, its got more bells & whistles than anyone
can discover in a lifetime.

But what users actually need (despite contrary propaganda from microsoft),
is a *stable* and *predictable* and *secure* system.


That may be what users /need/ but what they /want/ is a stable, predictable and
secure system with those *particular* bells and whistles that take their fancy.
Not to mention that they want any applications they are interested in to be
released for their OS.
  #90  
Old March 29th 04, 09:33 AM
Neil Gerace
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Default Faulty hardware found on shuttle


"Henry Spencer" wrote in message
...

MOST, which weighs 53kg as launched and totalled maybe US$4M development
cost, has a star tracker that holds it on target to within a few
arcseconds. The software for it, while by no means trivial, is nothing
supernatural (and I speak as the project's Software Architect).


So your software is merely astronomical, then?


 




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