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Search: Posts Made By: Roseland
Showing results 1 to 35 of 42
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Forum: Spectators Balcony (Spotters Corner)
1st Oct 2017, 18:42
Replies: 559
Views: 591,413
Posted By Roseland

Thanks for the archive link. It is, however,...

Thanks for the archive link. It is, however, still a current page on their website, and I think they're being slightly disingenuous in not updating it in nearly five years.
Forum: Spectators Balcony (Spotters Corner)
1st Oct 2017, 17:22
Replies: 559
Views: 591,413
Posted By Roseland

Previous failures?

P&W's website states:

The GP7200 entered service in 2008 with the world's largest A380 fleet, Emirates. The first GP7200-powered A380 was delivered to Air France in 2009. Since entering service,...
Forum: Private Flying
9th Sep 2017, 18:30
Replies: 33
Views: 6,495
Posted By Roseland

Just a bit more about the UK 28 day rule… ...

Just a bit more about the UK 28 day rule…

You can generally use agricultural land for up to 28 days a year for other purposes (such as an airfield) without getting Planning Permission. Some uses,...
Forum: Rumours & News
16th Jan 2015, 11:11
Replies: 3,923
Views: 4,491,215
Posted By Roseland

Only the second of the two links you included...

Only the second of the two links you included mentions trim, unless I've missed it.
Forum: Rumours & News
16th Jan 2015, 09:17
Replies: 3,923
Views: 4,491,215
Posted By Roseland

The Airbus A330 stall recovery in place at the...

The Airbus A330 stall recovery in place at the time of AF447 called for TOGA and 5° pitch (10° below FL200). Unless I'm mistaken, no mention was made of checking trim. See:...
Forum: Rumours & News
14th Jan 2015, 19:59
Replies: 3,923
Views: 4,491,215
Posted By Roseland

American 587 is the most obvious with an...

American 587 is the most obvious with an in-flight loss of the VS, although in several instances (AF447, Perpignan) it was found floating alone after impact. Of course, that's not the full...
Forum: Rumours & News
8th Jan 2015, 08:14
Replies: 3,923
Views: 4,491,215
Posted By Roseland

If hoistop (post 1472) is correct, and the THS is...

If hoistop (post 1472) is correct, and the THS is full nose-up, then this would link it with both AF447 and XL Airways Perpignan crash. In both those cases the THS motored full nose up before the...
Forum: Rumours & News
7th Jan 2015, 14:57
Replies: 3,923
Views: 4,491,215
Posted By Roseland

QZ8501

I think a large number of folk will share this view.
Forum: Rumours & News
1st Jan 2015, 14:47
Replies: 3,923
Views: 4,491,215
Posted By Roseland

NigelOnDraft Of course stall warning does...

NigelOnDraft

Of course stall warning does come from the AoA sensors. What I'm saying is that if the AoA sensors are below the range where they give accurate readings then the stall warning should...
Forum: Rumours & News
1st Jan 2015, 14:23
Replies: 3,923
Views: 4,491,215
Posted By Roseland

NigelOnDraft I’ve seen many times the claim...

NigelOnDraft

I’ve seen many times the claim that the FO held the stick back when the stall warning was sounding.

Looking at Appendix 3 of the final BEA report it doesn’t seem as simple as...
Forum: Rumours & News
1st Jan 2015, 12:45
Replies: 3,923
Views: 4,491,215
Posted By Roseland

Sorry, JoeyBalls, our posts crossed. Your...

Sorry, JoeyBalls, our posts crossed. Your explanation is very clear.
Forum: Rumours & News
1st Jan 2015, 12:39
Replies: 3,923
Views: 4,491,215
Posted By Roseland

This is the best description I've seen: ...

This is the best description I've seen:

http://www.pprune.org/tech-log/412932-airbus-sidestick-command.html
Forum: Rumours & News
1st Jan 2015, 11:21
Replies: 3,923
Views: 4,491,215
Posted By Roseland

From 35,000ft there's quite a lot of time to try...

From 35,000ft there's quite a lot of time to try things. In AF447 at the time the Captain returned to the cockpit the stall warning had either already stopped sounding or stopped a few seconds...
Forum: Rumours & News
1st Jan 2015, 10:41
Replies: 3,923
Views: 4,491,215
Posted By Roseland

Stall warn inhibit

NigelOnDraft

You say you don’t like WoW as an inhibit for the stall warning because LGCIUs fail relatively frequently.

You will, no doubt, recall the wingstrike at Hamburg (A320, 1st May 2008)....
Forum: Rumours & News
1st Jan 2015, 10:17
Replies: 3,923
Views: 4,491,215
Posted By Roseland

We'll have to disagree. I think having stall...

We'll have to disagree. I think having stall warning disabled by low IAS (frozen pitots?) is a significant weakness.

What do others think?
Forum: Rumours & News
1st Jan 2015, 09:10
Replies: 3,923
Views: 4,491,215
Posted By Roseland

That's why every other aircraft company I'm aware...

That's why every other aircraft company I'm aware of use squat (weight on wheels) switches.

For much of AF447's descent, the stall warning was inactive either because the pitots were iced, or...
Forum: Rumours & News
1st Jan 2015, 08:30
Replies: 3,923
Views: 4,491,215
Posted By Roseland

NUTTY, as in having a stall warning system that...

NUTTY, as in having a stall warning system that doesn't work when measured airspeed is below 60kts:

If the CAS measurements for the three ADR are lower than 60 kt, the angle of attack values of...
Forum: Rotorheads
18th Dec 2013, 11:37
Replies: 2,934
Views: 2,224,497
Posted By Roseland

Catch21, Not if control was lost, and the...

Catch21,

Not if control was lost, and the rotors slowed. Particularly if there was some rotation (yaw) before control was lost, such as would happen if the Fenestron failed in some way.

And...
Forum: Rotorheads
18th Dec 2013, 11:03
Replies: 2,934
Views: 2,224,497
Posted By Roseland

Why no fire? Because if, as Back at NH suggests,...

Why no fire? Because if, as Back at NH suggests, controllability was lost, he might have pulled the engines in the hope that they landed on something soft (trees?), and wanted to minimise the...
Forum: Rotorheads
18th Dec 2013, 06:54
Replies: 2,934
Views: 2,224,497
Posted By Roseland

JimEli, I don't think Lemain is trying to...

JimEli,

I don't think Lemain is trying to contradict Newton. The falling craft has a certain energy, and the resulting damage depends on how that energy is shared between deforming the hull and...
Forum: Rotorheads
16th Dec 2013, 18:25
Replies: 2,934
Views: 2,224,497
Posted By Roseland

RVDT, Many thanks. I defer to your superior...

RVDT, Many thanks. I defer to your superior knowledge. As I said, it was just one possible scenario.
Forum: Rotorheads
16th Dec 2013, 17:59
Replies: 2,934
Views: 2,224,497
Posted By Roseland

Jayteeto, lest you be in any doubt, I do not...

Jayteeto, lest you be in any doubt, I do not think this was in any way pilot error, hence my comment:
"...but until all possible mechanical failures have been exhausted I'd be tempted to give any...
Forum: Rotorheads
16th Dec 2013, 09:10
Replies: 2,934
Views: 2,224,497
Posted By Roseland

Xlsky, I absolutely agree that all too often...

Xlsky, I absolutely agree that all too often pilot error is blamed unfairly. I’d put AF447 in the same category.

Paco and SilsoeSid, I agree; TR failure is (apart from double engine fire) the...
Forum: Rotorheads
15th Dec 2013, 19:42
Replies: 2,934
Views: 2,224,497
Posted By Roseland

Jayteeto, If I gave the impression that I knew...

Jayteeto, If I gave the impression that I knew the cause of the accident then it was the opposite of my intention. It was simply that this thread seems to have moved away from considering possible...
Forum: Rotorheads
15th Dec 2013, 16:31
Replies: 2,934
Views: 2,224,497
Posted By Roseland

So what caused the engines out?

I think I've read every post in this thread, and I haven't seen a plausible explanation of how an EC135, with 95 litres of fuel on board, can have both engines quit.

If I've missed it, can...
Forum: Engineers & Technicians
6th Apr 2013, 06:16
Replies: 39
Views: 21,452
Posted By Roseland

Re: New Fastener Removal Method

Does anyone on this forum have experience of the EDM system in the video above?

The manufacturer claims it's 4-5x as fast as drilling with less FOD and greatly reduced risk of airframe damage, so...
Forum: Rumours & News
27th Jul 2011, 05:55
Replies: 109
Views: 86,863
Posted By Roseland

Does anyone think the change of Control Law (from...

Does anyone think the change of Control Law (from Normal Flight Mode to Normal Ground Mode) could have played a part here, as in the Hamburg tip strike?
Forum: Tech Log
5th Jul 2011, 11:39
Replies: 3,435
Views: 1,674,529
Posted By Roseland

BOAC, You're right (of course!). The...

BOAC,

You're right (of course!).

The first BEA Report lists Paris ORLY as the alternate, not CDG.

Must be my age - I still think "Paris, must be Orly!"

Apologies to all for the confusion!
Forum: Tech Log
5th Jul 2011, 11:34
Replies: 3,435
Views: 1,674,529
Posted By Roseland

WanganuiLad, I think there are two questions...

WanganuiLad,

I think there are two questions here:

Would the PF been more aware of the inputs he was making, and

Would the PNF and Captain have noticed the inputs more quickly had it been a...
Forum: Tech Log
5th Jul 2011, 10:40
Replies: 3,435
Views: 1,674,529
Posted By Roseland

oldchina, I'm clearly missing something...

oldchina,

I'm clearly missing something here. If what you say is correct, and I am sure it is, then why file a plan where the intended destination is listed as an alternate?
Forum: Tech Log
5th Jul 2011, 10:11
Replies: 3,435
Views: 1,674,529
Posted By Roseland

JCviggen, I agree the pitots froze, and that...

JCviggen,

I agree the pitots froze, and that whilst the newer ones recommended in the 2007 Bulletin should have been better, there is no guarantee they would not have iced up too.

For me the...
Forum: Tech Log
5th Jul 2011, 07:40
Replies: 3,435
Views: 1,674,529
Posted By Roseland

The purpose of the list was to identify potential...

The purpose of the list was to identify potential weaknesses in systems and procedures that could come back to bite future flights.

The point about the storm was to question the wisdom of allowing...
Forum: Tech Log
4th Jul 2011, 14:16
Replies: 3,435
Views: 1,674,529
Posted By Roseland

A List To Learn From

Like others in this forum I suspect that no one factor will be found solely responsible for this tragic loss.

Having read (I think) every post in this thread, as well as both BEA reports, I have...
Forum: Tech Log
27th Jun 2011, 17:52
Replies: 3,435
Views: 1,674,529
Posted By Roseland

A330 QRH Anyone?

I don't have a QRH available, and the nearest thing I have is the A330/A340 Flight Crew Training Manual from:...
Forum: Tech Log
9th Jun 2011, 06:41
Replies: 3,435
Views: 1,674,529
Posted By Roseland

Stall recovery procedure

Shouldn't it include checking you aren't trimmed fully nose up?
Showing results 1 to 35 of 42
 
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