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Search: Posts Made By: infrequentflyer789
Showing results 1 to 35 of 40
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Forum: Rumours & News
20th May 2010, 23:42
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

It's hard watching people misunderstanding that...

It's hard watching people misunderstanding that they are actually agreeing with each other...

At the risk of confusing things still futher, I don't think that was the bit of Bearfoils post that...
Forum: Rumours & News
17th Feb 2010, 21:42
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Three, recently, that I can think of (discounting...

Three, recently, that I can think of (discounting those who went in for gliding practice by runing out of fuel).

BA38, and two birdies (Sully and FR at Rome - either of those could have gone very...
Forum: Rumours & News
16th Feb 2010, 14:05
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

So, do you believe that Capt B lied on this forum...

So, do you believe that Capt B lied on this forum - because that is what you seem to be implying ?

The results might be counterintuitive, and there might be interesting reasons why no one got...
Forum: Rumours & News
12th Feb 2010, 23:20
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Come on, be fair all round. Haynes didn't just...

Come on, be fair all round. Haynes didn't just lose one engine of three, the shrapnel took out all his hydraulics to boot. He didn't make a "controlled" crash - he had no control surfaces. That...
Forum: Rumours & News
11th Feb 2010, 21:55
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Entirely agreed. Also worth noting (from section...

Entirely agreed. Also worth noting (from section 1 of the report):

The comment I've put in italics appears (to me) to confirm that PF was indeed still following the glideslope well below 600ft,...
Forum: Rumours & News
10th Feb 2010, 00:43
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Agreed and worth noting that some 18 months ago...

Agreed and worth noting that some 18 months ago the AAIB recommended that the regulatory authorities consider, as phil gollin says: "undertaking such research and then applying it to ALL airframe and...
Forum: Rumours & News
10th Feb 2010, 00:29
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

You aren't the only one. That shouldn't be a...

You aren't the only one.

That shouldn't be a surprise, it wasn't to me. Since the early interim reports it's been made clear that there was some sort of obstruction in the fuel system, that...
Forum: Rumours & News
9th Feb 2010, 09:11
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Agreed. Perhaps more importantly, these safety...

Agreed. Perhaps more importantly, these safety recommendations were made 18months ago, one as "take immediate action".

So, what have the regulatory authorities done ?

1. nothing
2. considered...
Forum: Rumours & News
12th Mar 2009, 13:09
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

I think it is credible that the test rig...

I think it is credible that the test rig investigations have moved forward substantially from the last official reports, particularly with another incident providing another dataset. This is...
Forum: Rumours & News
12th Sep 2008, 23:25
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Thanks for the link, to quote the AD: ...

Thanks for the link, to quote the AD:



Hmmm. Is it me, or does that imply a far greater degree of certainty as to the mechanism than the latest AAIB report did ? I read the AAIB report as...
Forum: Rumours & News
12th Sep 2008, 23:06
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

The signal is slightly noisy - there are other...

The signal is slightly noisy - there are other blips - and that could account for this. Also, consider that when the OJ pumps switch off, does fuel already in the pipes / pump but upstream of the...
Forum: Rumours & News
12th Sep 2008, 22:17
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

I know, and I don't disagree, but the more modern...

I know, and I don't disagree, but the more modern types have moved away from point-to-point wiring to bus-based systems. That allows you to simplify the scarily complex wiring looms (or to do more...
Forum: Rumours & News
12th Sep 2008, 00:42
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

6.5 million is hours not flights (1.4M flights) -...

6.5 million is hours not flights (1.4M flights) - but it is all 777s (in fact all RR powered 777). That does cover several variants however, and fuel tank configuration is different between the...
Forum: Rumours & News
12th Sep 2008, 00:31
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Modern DFDRs can record hundreds (if not 1000+)...

Modern DFDRs can record hundreds (if not 1000+) of parameters - way more than the minimum required set, plus they have the QAR (which may record even more) for almost all of the flight (including...
Forum: Rumours & News
13th Aug 2008, 13:34
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

This is (roughly) the main hypothesis behind NVP...

This is (roughly) the main hypothesis behind NVP (n-version programming). Knight & Leveson famously claimed to have disproved this experimentally http://sunnyday.mit.edu/critics.pdf. Specifically,...
Forum: Rumours & News
16th Jun 2008, 17:23
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Hate to correct a correction, but according to...

Hate to correct a correction, but according to the AAIB the difference was around 7 seconds, not only 1 sec:However, at a height
of about 720 ft the thrust of the right engine reduced to...
Forum: Rumours & News
14th May 2008, 13:06
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Well, if we're getting picky about correctness,...

Well, if we're getting picky about correctness, you should note that your statement is only true for some (eg. normal) distributions. If the distribution is highly skewed, then the average value...
Forum: Rumours & News
13th May 2008, 23:37
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

GBs security detail saw it first and zapped it...

GBs security detail saw it first and zapped it with the secret anti-ufo EMI-RFI-EMP ray thingy.

Unfortunately the UFO got his shields up in time and the EMI-ray bounced back, hit BA038, and the...
Forum: Rumours & News
17th Apr 2008, 17:45
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

That would be the one where the retrofitted...

That would be the one where the retrofitted rudder controls (to fix the problem) included duff control rods that could also lead to uncommanded hardover ? :uhoh:

I think the investigation in...
Forum: Rumours & News
11th Apr 2008, 13:32
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

I don't think it has been left as open as that,...

I don't think it has been left as open as that, whilst they have been careful to say that the fuel was indicated to be in the wing tanks, they also haven't said (or implied) anywhere that those...
Forum: Rumours & News
11th Apr 2008, 12:59
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

I don't know the design details on the 777...

I don't know the design details on the 777 specifically, but from what I do know of design of similar sized craft, the oleos will absorb vertical forces up to a point, but when it comes to horizontal...
Forum: Rumours & News
11th Apr 2008, 11:35
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Erm, the AAIB state quite clearly that the total...

Erm, the AAIB state quite clearly that the total fuel was:



Yes, they state quite carefully that this is indicated fuel, because that is what they have the precise figures for. They don't...
Forum: Rumours & News
3rd Apr 2008, 01:52
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

But if scavenge was still in progress (and maybe...

But if scavenge was still in progress (and maybe sending a big slug of water through to the wings) then CT wouldn't be reading empty.



I've read that before also, and I understand it as no...
Forum: Rumours & News
3rd Apr 2008, 01:30
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Interesting theory... Problem: I would...

Interesting theory...

Problem: I would expect spar valve position would be recorded (although I don't know details on 777 FDR or QAR), and that a difference between recorded and commanded...
Forum: Rumours & News
2nd Apr 2008, 23:08
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

If scavenge failed then the fuel sensors did too,...

If scavenge failed then the fuel sensors did too, as the AAIB state that the fuel was (indicated to be) in the wing tanks on approach.
Forum: Rumours & News
25th Mar 2008, 01:33
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

No. a) you've got the wrong aircraft (your...

No.

a) you've got the wrong aircraft (your boeing quote is about 777-200LR and 777-300ER, G-YMMM was 777-200ER)

b) we already know BA38 didn't land with a large amount of unused fuel in CT...
Forum: Rumours & News
5th Mar 2008, 22:38
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Interesting. This passage caught my eye: ...

Interesting. This passage caught my eye:

"then you will start to hear strange noises as the combustion becomes unstable in the engine. You will hear a low rumble as parts of the ejector nozzles...
Forum: Rumours & News
5th Mar 2008, 21:59
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Also the AAIB should have noticed, and their...

Also the AAIB should have noticed, and their report says:The total fuel on board was indicating 10,500kg, which was distributed almost equally between the left and right main fuel tanks

They also...
Forum: Rumours & News
26th Feb 2008, 15:38
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

1. Crew failure to switch off the CT boost pumps...

1. Crew failure to switch off the CT boost pumps would be in the data
2. Pump switch on would probably be recorded also (I am less certain on this one)
3. CT would be reading 900kg or more,...
Forum: Rumours & News
26th Feb 2008, 14:24
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Not just the general public either - try this...

Not just the general public either - try this from the Times (once arguably a respected source of news) regarding the 777 fly-by sacking:
...
Forum: Rumours & News
22nd Feb 2008, 21:36
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

I see some problems with it (maybe not fatal): ...

I see some problems with it (maybe not fatal):

1. CWT boost pumps stop at 900kg - which is a fair bit of "something" to be in the tank.
2a. Given that CWT empty is the expected state (late in...
Forum: Rumours & News
22nd Feb 2008, 19:45
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

Also CWT would have been empty by landing...

Also CWT would have been empty by landing anyway...

If there was enough something (fuel or water) in CWT for the boost pumps to still be running (or they started up again) then I think that would...
Forum: Rumours & News
22nd Feb 2008, 13:20
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

On the first, I don't know. Porus chinese walls I...

On the first, I don't know. Porus chinese walls I could believe, ditching triplex development completely I would find slightly suprising. I don't know the details though.

As to the second...
Forum: Rumours & News
22nd Feb 2008, 12:08
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

What would happen is that it would stay in the...

What would happen is that it would stay in the tank as ice, until it melted when it would stay in the tank as water. It would then be found there (as either ice or water), at the point that the...
Forum: Rumours & News
21st Feb 2008, 18:04
Replies: 3,239
Views: 1,137,419
Posted By infrequentflyer789

fuel burn

Report says they flew higher than plan, to "accommodate a request from ATC". Also that they were in hold at LHR for only 5mins, which I would have thought was less than expected. How much fuel...
Showing results 1 to 35 of 40
 
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