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Search: Posts Made By: DozyWannabe
Showing results 1 to 35 of 50
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Forum: Tech Log
6th Jul 2011, 19:39
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

@A33Zab - you're quoting CONF, not me... ...

@A33Zab - you're quoting CONF, not me...



I suspect you'd understand it better if you didn't have such a problem with it since 1988. If you hate the Airbus FBW flightdeck so much, why haven't...
Forum: Tech Log
6th Jul 2011, 18:00
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

And we know you don't like it - lord knows we've...

And we know you don't like it - lord knows we've heard it enough times... Doesn't mean it's necessarily worse either.



He could definitely see the fact that they were nose-high, which was...
Forum: Tech Log
6th Jul 2011, 12:02
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

But you can't infer from that information that...

But you can't infer from that information that the PNF was unaware of what was going on because he wasn't getting any feel through his sidestick. Perhaps he felt that the other pilot was doing what...
Forum: Tech Log
5th Jul 2011, 21:51
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

When it was designed yes, but at the time of the...

When it was designed yes, but at the time of the AF447 accident there were known issues with the Thales pitot probes - in fact there was a service bulletin in effect and operators communications from...
Forum: Tech Log
5th Jul 2011, 19:04
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

@gums: There was no overspeed warning*. As...

@gums:

There was no overspeed warning*. As I understand it, Chris Scott's theory is predicated on a possible attempt by the computers to compensate for the initial slight back pressure on the...
Forum: Tech Log
5th Jul 2011, 16:10
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Not necessarily, remember we don't have a...

Not necessarily, remember we don't have a complete picture of the PNF's actions and reactions as yet!
Forum: Tech Log
5th Jul 2011, 10:53
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Not that I want to get into a semantics parsing...

Not that I want to get into a semantics parsing issue, but misunderstanding is *not* the same as confusion, except maybe as a literary device - for example I've always considered "mode confusion" to...
Forum: Tech Log
5th Jul 2011, 00:43
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Write books? Make music? Paint pictures? Solve...

Write books? Make music? Paint pictures? Solve complex mathematical/physics theorems? Design and build spacecraft to explore beyond our little world?

I jest, but the whole point of human...
Forum: Tech Log
5th Jul 2011, 00:23
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

@Svarin Mate, your theory is no more...

@Svarin

Mate, your theory is no more grounded in fact than anything I can come up with. All we can do at this point is wait for the report. I do however expect that if such a transitory software...
Forum: Tech Log
4th Jul 2011, 21:41
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

BOAC, sir, I'm getting mixed signals from you. ...

BOAC, sir, I'm getting mixed signals from you.

I took this post of yours as a well-intentioned move to stick to the evidence at hand, and when I ask a reasonable question of gums - namely whether...
Forum: Tech Log
4th Jul 2011, 21:14
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Again, gums, where is the evidence that the...

Again, gums, where is the evidence that the flight computers did anything they were not commanded to by the handling pilot? The whole point of the graceful degradation in laws is that the guy in the...
Forum: Tech Log
4th Jul 2011, 20:44
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

*sigh* We've already dealt with Ziegler on...

*sigh*

We've already dealt with Ziegler on this very thread and others, at great length. An intelligent and gifted pilot with a flair for communication certainly, but some of the things he said...
Forum: Tech Log
4th Jul 2011, 19:26
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Hi Chris - what I'm saying is that your initial...

Hi Chris - what I'm saying is that your initial suggestion was that the "G"-loading system would possibly trim the aircraft nose-up at stick neutral as the speed appeared to decay. What I mean by...
Forum: Tech Log
2nd Jul 2011, 17:03
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Well, the worst-case scenario where the...

Well, the worst-case scenario where the automatics can continue to function is, yes, because a software-driven triple-redundant quorum can only be effective if two components are working correctly...
Forum: Tech Log
2nd Jul 2011, 16:10
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Apologies for delay - helluva busy week! ...

Apologies for delay - helluva busy week!



How many times is it possible to say that the computers were not "trying" to do anything other than that which they were told to do by the stick inputs...
Forum: Tech Log
29th Jun 2011, 02:58
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Incorrect. All the indications we have so far...

Incorrect. All the indications we have so far imply they behaved exactly as designed to when an air data failure is detected.
Forum: Tech Log
29th Jun 2011, 02:06
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Just as pilots were involved in the Airbus design...

Just as pilots were involved in the Airbus design process - is there a point to your post? All this means is that different pilots prefer different things - it's not like the Airbus FBW flight...
Forum: Tech Log
29th Jun 2011, 01:35
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Let's be honest here, what percentage of pilots...

Let's be honest here, what percentage of pilots in the steam-gauge era knew - and I mean really *knew* - exactly how the mechanical and pneumatic systems were translating the data? What the...
Forum: Tech Log
28th Jun 2011, 22:59
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Because at some point the training wheels have to...

Because at some point the training wheels have to come off. If everything was made to work "just like the old days" this board would be a complete pig to use!

Put another way, Boeing made the 777...
Forum: Tech Log
28th Jun 2011, 15:02
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

@SDFlyer - There are plenty of links in this...

@SDFlyer - There are plenty of links in this thread and the previous ones to Airbus documents that describe the various systems and mode reversions, along with the logic that triggers the latter.
...
Forum: Tech Log
27th Jun 2011, 13:49
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

*Part* of the reason was, otherwise, why would...

*Part* of the reason was, otherwise, why would they have bothered including pilots in the requirements capture phase? Also, what you're saying is just not accurate. The fact is that the...
Forum: Tech Log
27th Jun 2011, 04:29
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

jcjeant : I have many sources of information, of...

jcjeant : I have many sources of information, of which that was one (admittedly not a good one, but it stuck in my head). For example I don't have anything concrete on the Boeing 777 systems other...
Forum: Tech Log
27th Jun 2011, 03:50
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Graybeard: I think you'll find that you've...

Graybeard:

I think you'll find that you've missed the point I was trying to make. This isn't about A v B, USA v EU, pilots v engineers or any of that rubbish.

There seems to be a point at...
Forum: Tech Log
27th Jun 2011, 01:15
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

This is where (and why) I keep going back to...

This is where (and why) I keep going back to Birgenair - where a very experienced pilot stalled and span his 757 despite the fact that the only fault on the aircraft was a single blocked pitot tube. ...
Forum: Tech Log
26th Jun 2011, 23:56
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

True, but it is possible to use the trim manually...

True, but it is possible to use the trim manually in any law. Manual Trim has priority, and when manual trim commands cease, autotrim will function again. I misinterpreted that earler, thinking...
Forum: Tech Log
26th Jun 2011, 18:44
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Er, I'm pretty sure this was discussed on the...

Er, I'm pretty sure this was discussed on the previous thread - some time ago they not only "admitted" that it was a problem, they changed the behaviour so that when A/THR kicks out, the thrust...
Forum: Tech Log
21st Jun 2011, 22:53
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Svarin: Why are you pushing so hard for a...

Svarin:

Why are you pushing so hard for a software failure above all else in the face of the evidence we have so far?
Forum: Tech Log
21st Jun 2011, 07:06
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

It's not disagreement over the systems behaviour,...

It's not disagreement over the systems behaviour, it's a group of people who know the systems and are willing to stick to the facts as presented versus a group of people who may know the systems, but...
Forum: Tech Log
20th Jun 2011, 09:55
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

The BEA aren't reporting on or scrutinising those...

The BEA aren't reporting on or scrutinising those flights, they're only working on AF447. I'm sure that the presence of those flights will be mentioned in the report if it turns out to be relevant. ...
Forum: Tech Log
19th Jun 2011, 18:08
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

I think this was the one that got a lot of...

I think this was the one that got a lot of people's attention:

Southern Airways Flight 242 - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Southern_Airways_Flight_242)
Forum: Tech Log
19th Jun 2011, 16:16
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

JD-EE: You're not taking the training around...

JD-EE:

You're not taking the training around loss of air data into account. One of the things quickly learned from the pitot/static failure accidents in the 1990s was that aural warnings...
Forum: Tech Log
19th Jun 2011, 15:49
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

SaturnV (liking the handle!): Absolutely - I...

SaturnV (liking the handle!):

Absolutely - I wasn't trying to imply one way or the other - I was just expressing the opinion that the investigation should be thorough.

jcjeant:


The way I...
Forum: Tech Log
19th Jun 2011, 02:09
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Would they have done so if they weren't? That's...

Would they have done so if they weren't? That's a question neither you, I, nor anyone else can answer. I believe they would have (after all, it was pretty much the only information they had to go...
Forum: Tech Log
19th Jun 2011, 00:13
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

@Graybeard : The context of my question is that...

@Graybeard : The context of my question is that if enough people thought it was a possibility, even if it doesn't turn out to have much of a bearing on the case, would it not be a good idea to look...
Forum: Tech Log
18th Jun 2011, 22:19
Replies: 1,069
Views: 279,701
Posted By DozyWannabe

Read what I said carefully. I'm not saying...

Read what I said carefully. I'm not saying that's what happened to AF447, but if that situation is a possibility then "Avoid all thunderstorms - period" becomes insufficient advice. What do you do...
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