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Search: Posts Made By: PJ2
Showing results 1 to 35 of 111
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Forum: Tech Log
23rd Apr 2011, 06:53
Replies: 3,893
Views: 1,540,592
Posted By PJ2

mm43; Yes, I think so. Missing comms is...

mm43;

Yes, I think so. Missing comms is initially, not that big a deal on the Pacific, Atlantic or Arctic. It is slowly changing as ADS and CPDLC installations grow.

But this is the sense of...
Forum: Tech Log
23rd Apr 2011, 06:45
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Machinbird; Yes, understand. No criticism...

Machinbird;

Yes, understand. No criticism intended of your post because I believe the view expressed is on the right track, not because "I" don't like the other theory, but because the evidence...
Forum: Tech Log
23rd Apr 2011, 00:57
Replies: 3,893
Views: 1,540,592
Posted By PJ2

JD-EE; After the crew acknowledged the...

JD-EE;

After the crew acknowledged the SELCAL check, only a few seconds had elapsed when ATLANTICO requested their TASIL estimate but the crew did not respond.

I don't think this in itself...
Forum: Tech Log
22nd Apr 2011, 23:10
Replies: 3,893
Views: 1,540,592
Posted By PJ2

SaturnV; A crew receiving an ACARS message...

SaturnV;

A crew receiving an ACARS message from company may or may not acknowledge, and a lack of acknowledgement at that time, would not necessarily be reason for concern. The unfolding process...
Forum: Tech Log
22nd Apr 2011, 21:01
Replies: 3,893
Views: 1,540,592
Posted By PJ2

auv-ee, I had understood from some communications...

auv-ee, I had understood from some communications that it was closer to 15,000 images but covering an area 200m x 600m could easily produce 100,000 images.
Forum: Tech Log
22nd Apr 2011, 17:16
Replies: 3,893
Views: 1,540,592
Posted By PJ2

mm43; Not at all, thank you for the...

mm43;

Not at all, thank you for the correction. I have to re-read the two reports from time to time and wrote from memory. Sigh.

BOAC;

The BEA Reports discuss this in various parts.
...
Forum: Tech Log
22nd Apr 2011, 06:05
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Machinbird; I would not want to criticize...

Machinbird;
I would not want to criticize theories if they are developing and/or promising, but if someone believes something strongly, in this context there is the requirement for substantiation.
...
Forum: Tech Log
22nd Apr 2011, 03:45
Replies: 3,893
Views: 1,540,592
Posted By PJ2

777fly; Thanks...I obviously hadn't...

777fly;

Thanks...I obviously hadn't recalled the exact circumstances in that collision although I certainly recall the outfall.

For practical purposes the point is made, that a swept-wing...
Forum: Tech Log
21st Apr 2011, 21:41
Replies: 3,893
Views: 1,540,592
Posted By PJ2

The point is not proven as possible. The JAL B747...

The point is not proven as possible. The JAL B747 was not without the fin. The aircraft remained relatively in control because two thirds of the vertical stabilizer remained, (leading edge, fore and...
Forum: Tech Log
21st Apr 2011, 06:40
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Grizz, I completely agree. BJ-ENG's post is in my...

Grizz, I completely agree. BJ-ENG's post is in my view required reading. Understanding the difference between aircraft structures impacting solid ground and water is, I think, important to...
Forum: Tech Log
20th Apr 2011, 17:47
Replies: 3,893
Views: 1,540,592
Posted By PJ2

gums; And compact - memory and processing...

gums;

And compact - memory and processing power is cheap.

The expensive parts as you likely know, are the STCs, the cooperation from Boeing and Airbus as the case may be, to obtain dataframe...
Forum: Tech Log
20th Apr 2011, 15:44
Replies: 3,893
Views: 1,540,592
Posted By PJ2

syseng68k, now I understand - my thanks for the...

syseng68k, now I understand - my thanks for the explanation on timestamping - it makes sense to me now...the "ACARS" item turned up because of previous discussions on timestamping of messages and I...
Forum: Tech Log
20th Apr 2011, 06:18
Replies: 3,893
Views: 1,540,592
Posted By PJ2

bearfoil; It was observed and stated...

bearfoil;

It was observed and stated somewhere shortly after the crash in 2009 that there wouldn't be sufficient dynamic pressure above FL200 or so, to cause the VS to fail as it did and that...
Forum: Tech Log
19th Apr 2011, 18:50
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Not sure what you mean by "real altitude rise...

Not sure what you mean by "real altitude rise with working static ports" - I'm aware of the effects of blocked pitots and statics on airspeed and/or altitude information - just trying to see your...
Forum: Tech Log
19th Apr 2011, 16:57
Replies: 3,893
Views: 1,540,592
Posted By PJ2

You're talking about two completely separate...

You're talking about two completely separate systems. Flight data recorders have nothing to do with the ACARS messages - that's been the point all along. The recorders don't see these messages,...
Forum: Tech Log
19th Apr 2011, 07:14
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Machinbird; No, I would specifically wish to...

Machinbird;

No, I would specifically wish to avoid this interpretation of my note. "Filtering" can be used to smooth data as we know, but I don't see how it can be so smoothed when "the strobe is...
Forum: Tech Log
19th Apr 2011, 06:59
Replies: 3,893
Views: 1,540,592
Posted By PJ2

grizz; That's why it's called a PFM box......

grizz;

That's why it's called a PFM box... you never know for sure.

gums;

The mistake some made in the early discussion was treating the 24 ACARS messages as the same kind of information...
Forum: Tech Log
19th Apr 2011, 04:54
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Machinbird; There is an alternate...

Machinbird;

There is an alternate explanation which might help. It comes from the way flight data recording works.

Remember how popular strobe lights were? Let's put two such strobes in a dark...
Forum: Tech Log
17th Apr 2011, 22:37
Replies: 3,893
Views: 1,540,592
Posted By PJ2

lomapaseo; Of course, you're right...I just...

lomapaseo;

Of course, you're right...I just didn't want to use the term 'fun' but for those who take to puzzle-solving and examining "the trace", even ones with serious and tragic origins, it is,...
Forum: Tech Log
17th Apr 2011, 21:37
Replies: 3,893
Views: 1,540,592
Posted By PJ2

grity; One thing consistent about...

grity;


One thing consistent about airplanes is a "variations on a theme" of entities which are under constant modification and updating.

We have 3 such variations here, (and this is only...
Forum: Tech Log
17th Apr 2011, 19:12
Replies: 3,893
Views: 1,540,592
Posted By PJ2

mike-wsm, understand what you're saying, but for...

mike-wsm, understand what you're saying, but for some here, it's just what we do... ;-)
Forum: Tech Log
17th Apr 2011, 08:42
Replies: 3,893
Views: 1,540,592
Posted By PJ2

auraflyer; I've worked with the images a bit...

auraflyer;

I've worked with the images a bit to bring out greater detail. Unfortunately the highlights have no detail at all and just "gray down" so I've left them as is.

...
Forum: Tech Log
15th Apr 2011, 20:02
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Lonewolf; I think it is reasonable to posit...

Lonewolf;

I think it is reasonable to posit that the wing surfaces would have separated as a result of a "hydrodynamic pressure surge" from the [incompressible] fuel, (discussed in the BEA Report...
Forum: Tech Log
15th Apr 2011, 19:10
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Lonewolf, JD-EE, in searching for some idea of...

Lonewolf, JD-EE, in searching for some idea of the wreckage condition and layout, the China Airlines A300 stall accident at Nagoya in April of 1994 may be of interest.

The aircraft stalled on...
Forum: Tech Log
14th Apr 2011, 17:18
Replies: 3,893
Views: 1,540,592
Posted By PJ2

"Too bad I seem to forget at a similar rate if...

"Too bad I seem to forget at a similar rate if not more …"

...tell me about it...

I was using 333 information, but now have the 332.
Forum: Tech Log
14th Apr 2011, 16:44
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Chris, CONF iture; Agree that things...

Chris, CONF iture;

Agree that things unfolded quickly and that time to consider and act was short. I think we're bumping up against the limitations of text and typing...we've flown the Airbus so I...
Forum: Tech Log
14th Apr 2011, 15:20
Replies: 3,893
Views: 1,540,592
Posted By PJ2

CONF iture; Yes, fully agree - it is a...

CONF iture;

Yes, fully agree - it is a serious matter that requires some careful thought and action.

Selecting the turbulence penetration speed on the FCU would not reduce the N1 into a low...
Forum: Tech Log
14th Apr 2011, 06:52
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Bergerie1, thank you for an enlightening...

Bergerie1, thank you for an enlightening contribution. I haven't stalled a transport category aircraft but have done so in a D - level simulator which is required to replicate the behaviour of the...
Forum: Tech Log
14th Apr 2011, 06:35
Replies: 3,893
Views: 1,540,592
Posted By PJ2

JD-EE; Going from memory as it was a long...

JD-EE;

Going from memory as it was a long time ago...in Canada and I believe the US, if one crew member left the cockpit while the aircraft was cruising at 410, the remaining crew member was...
Forum: Tech Log
14th Apr 2011, 01:07
Replies: 3,893
Views: 1,540,592
Posted By PJ2

sensor_validation; If for any reason the...

sensor_validation;

If for any reason the engines rolled back, level flight is not possible, but forward flight is, and at the same airspeed as before or, more likely a slower, gliding speed. The...
Forum: Tech Log
13th Apr 2011, 06:48
Replies: 3,893
Views: 1,540,592
Posted By PJ2

CONF iture; Agree, thank you for the catch...

CONF iture;

Agree, thank you for the catch and correction.

Sigh, going from memory isn't working as well as it used to.

"FPV | Red flag under initial position of horizon line (has a...
Forum: Tech Log
12th Apr 2011, 21:09
Replies: 3,893
Views: 1,540,592
Posted By PJ2

Svarin; To be precise, there is only one...

Svarin;

To be precise, there is only one "FPV" pb on the FCU, in the center of the panel. This HDG-V/S:TRK/FPA pb toggles the FD presentation on the PFDs, and FCU mode selections, between...
Forum: Tech Log
12th Apr 2011, 07:30
Replies: 3,893
Views: 1,540,592
Posted By PJ2

777fly; A lot has been said on this and the...

777fly;

A lot has been said on this and the other two AF447 threads on radar.

Information provided airline crews on radar systems and effective use is at best parsimonious and at worst,...
Forum: Tech Log
12th Apr 2011, 01:52
Replies: 3,893
Views: 1,540,592
Posted By PJ2

HN39, you're welcome...as I say, some meandering...

HN39, you're welcome...as I say, some meandering thoughts which may strike chords with others and take us forward.
I'm keeping in mind that the ADRs themselves haven't failed but are receiving...
Forum: Tech Log
11th Apr 2011, 18:06
Replies: 3,893
Views: 1,540,592
Posted By PJ2

HN39; Just digging around while we...

HN39;

Just digging around while we anticipate further once the Ile de Sein arrives and begins work.

The following is some more information about the cabin pressure and the advisory message....
Showing results 1 to 35 of 111
 
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