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Search: Posts Made By: DozyWannabe
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Forum: Tech Log
27th May 2011, 02:04
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

It appears to me that RR_NDB, like many others,...

It appears to me that RR_NDB, like many others, is working backwards from a hypothesis that something intrinsic in the way the Airbus control system is designed is, in whole or in part, responsible...
Forum: Tech Log
27th May 2011, 01:35
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

CONF, with the utmost respect - you're sounding...

CONF, with the utmost respect - you're sounding like a broken record. I have yet to see any assertion supporting your statement claiming the pilots were unhappy with how the aircraft responded. In...
Forum: Tech Log
27th May 2011, 00:16
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Unhelpful. One man (a man who by all accounts is...

Unhelpful. One man (a man who by all accounts is now very elderly and frail), in a state of exuberance, said these controversial things 24 years ago. He was employed by Airbus Industrie as a...
Forum: Tech Log
25th May 2011, 20:55
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

This is nothing new, and certainly not...

This is nothing new, and certainly not manufacturer-specific:

This is on a Hawker-Siddeley Trident 1C (useful part is from 0:00-2:20, especially the last 30 seconds)

YouTube - ‪Blackbox...
Forum: Tech Log
25th May 2011, 20:32
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Good work, Professor - guess we can all pack up...

Good work, Professor - guess we can all pack up and go home now.

Yeesh... :rolleyes:
Forum: Tech Log
25th May 2011, 15:44
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

He laid it out on the line earlier. It would...

He laid it out on the line earlier. It would appear that he got involved with a (software) company or companies that failed, and ever since has had a very dim view of the profession. There were a...
Forum: Tech Log
25th May 2011, 12:29
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Trust me, if you'd actually studied Software...

Trust me, if you'd actually studied Software Engineering at even an undergraduate level, you'd quickly realise it's a discipline that shares the same reliance on repetition, models and a*se-achingly...
Forum: Tech Log
25th May 2011, 11:45
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Jebus - that's some serious bile you have there. ...

Jebus - that's some serious bile you have there. Ever tried counselling?



Then as a physicist - a man of science and reason - you of all people should be aware of the dangers of confusing a...
Forum: Tech Log
24th May 2011, 14:35
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

There's your first problem - Smalltalk took a...

There's your first problem - Smalltalk took a while to catch on in the commercial world, but it has set the stage for languages like Haskell, which are general-purpose, but with very clearly-defined...
Forum: Tech Log
24th May 2011, 12:26
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

syseng68k has already addressed the last point. ...

syseng68k has already addressed the last point. Ada was indeed included in my Software Engineering course for those that wanted to study realtime systems (class of 2001).

As to the first point,...
Forum: Tech Log
24th May 2011, 01:22
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Let's be honest here. What you're saying is...

Let's be honest here. What you're saying is probably fair in many cases. But to compare the IT projects you're talking about with what goes into real-time aviation systems is like comparing regular...
Forum: Tech Log
23rd May 2011, 22:13
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

The problem is that such a scenario contradicts...

The problem is that such a scenario contradicts all the physical evidence we have so far.
Forum: Tech Log
23rd May 2011, 19:09
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

*Or*, as I said, we're including in that number...

*Or*, as I said, we're including in that number things like the new graphical touch-screen interfaces that have cropped up on the most recent generation of jets - completely separate from the control...
Forum: Tech Log
23rd May 2011, 18:38
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Bear in mind that he's probably talking about the...

Bear in mind that he's probably talking about the current modern interfaces to the flight management software, not the control logic itself. I wouldn't like to try to implement a touch-screen...
Forum: Tech Log
23rd May 2011, 11:25
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

john_tullamarine: Your colleague is...

john_tullamarine:

Your colleague is absolutely right, though I suspect that syseng68k was not so much being optimistic as playing to the layman crowd on this thread. I think if the average person...
Forum: Tech Log
22nd May 2011, 18:27
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

For the techies on this thread, I've managed to...

For the techies on this thread, I've managed to dig up this report from my old Software Engineering/Reliability professor, Peter Mellor. In it, he details the visit he made to Airbus Industrie in...
Forum: Tech Log
22nd May 2011, 02:10
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Nothing wrong with that per se. Anyone used to...

Nothing wrong with that per se. Anyone used to driving a modern car would be completely at a loss trying to drive a Ford Model T. Also, the sidestick control method had been in use in military jets...
Forum: Tech Log
21st May 2011, 23:08
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

The complexity is mitigated by redundancy, as you...

The complexity is mitigated by redundancy, as you state - and the components themselves (derived from the 80186) were obsolete in computing terms in the late '80s, but highly predictable and easy to...
Forum: Tech Log
21st May 2011, 19:52
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

But aren't denser IC's just moving the complexity...

But aren't denser IC's just moving the complexity "up the chain", as it were? Denser IC's also tend to generate more heat energy, so the new components would have to be re-certified - an expensive...
Forum: Tech Log
21st May 2011, 18:08
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

The problem is that CONF iture, among others, is...

The problem is that CONF iture, among others, is working from a pre-determined conclusion - that the BEA is to some extent in the pockets of Airbus and Air France - and thus one would always have to...
Forum: Tech Log
21st May 2011, 03:29
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

As I've said before, the thing is that comparing...

As I've said before, the thing is that comparing FBW as it is applied to a fighter jet like the F-16 (constant correction due to inherent instability in the airframe) with how it is applied in an...
Forum: Tech Log
21st May 2011, 02:31
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

I'd venture to guess that whatever they say, our...

I'd venture to guess that whatever they say, our anti-Airbus cabal on here will consider it a stitch-up in any case. Still quixotically tilting at 23-year-old windmills...
Forum: Tech Log
20th May 2011, 20:59
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Well, to be fair it's a completely different...

Well, to be fair it's a completely different design consideration :



Going from memory here, so please correct me if so, but as I understood it the F/A-18 was more of a hybrid of the advanced...
Forum: Tech Log
20th May 2011, 19:17
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

But the kind of situation you're describing does...

But the kind of situation you're describing does not simply apply to aircraft of the same or of a later generation than the A330. Two incidents that spring to mind are the Roselawn ATR-72 crash, and...
Forum: Tech Log
20th May 2011, 17:43
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Well, I can't argue that the pilots did a good...

Well, I can't argue that the pilots did a good job of diagnosing the situation and determining the spurious warnings from the real ones. However, the dangers of such things happening due to a failed...
Forum: Tech Log
8th May 2011, 21:59
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Also, it's worth remembering that sections that...

Also, it's worth remembering that sections that sank relatively intact at the surface will have imploded on the way down (or possibly even exploded if they sank with trapped air inside), further...
Forum: Tech Log
3rd May 2011, 23:02
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Here we go again... *sigh*. I'm sure he's a...

Here we go again... *sigh*.

I'm sure he's a decent man, but on that day his lack of attention to detail destroyed a million-dollar aircraft and killed three* people. There's nothing else to be...
Forum: Tech Log
3rd May 2011, 20:05
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

True, but they were working from a set of...

True, but they were working from a set of manually-calculated DR coordinates that were accepted to be a considerable way off, as opposed to a computer-generated log which showed damn near the precise...
Forum: Tech Log
28th Apr 2011, 00:58
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

:confused:

:confused:
Forum: Tech Log
28th Apr 2011, 00:49
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

While this isn't directly pertinent to the...

While this isn't directly pertinent to the subject, I've got to say that there's major irony there. When the joint French/US team went looking for the Titanic in 1985, their starting point was the...
Forum: Tech Log
26th Apr 2011, 07:38
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

*sigh* OK, how about "The computers, when...

*sigh*

OK, how about "The computers, when behaving as designed - which is around 99.9(rec)% of the time - will do exactly as the pilot asks of them and will not intervene unless the pilot is...
Forum: Tech Log
25th Apr 2011, 22:44
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

Nope - sufficient pressure on the sidestick...

Nope - sufficient pressure on the sidestick *will* disconnect the AP/FMC, in much the same manner as it does on airliners equipped with yokes. However, thrust lever position is used to control the...
Forum: Tech Log
24th Apr 2011, 16:12
Replies: 2,546
Views: 935,729
Posted By DozyWannabe

On most modern aircraft if we're honest, CONF... ...

On most modern aircraft if we're honest, CONF... Even venerable airframes like the 737 have, in their latest incarnations, developed some previously unknown behaviours (such as the...
Showing results 1 to 33 of 33


 
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