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Search: Posts Made By: EXWOK
Showing results 1 to 35 of 111
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Forum: Tech Log
11th Dec 2023, 14:50
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

IIRC, it was...but I can't remember it being done...

IIRC, it was...but I can't remember it being done while I was on the fleet.
Forum: Tech Log
29th Jan 2023, 20:50
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

BIG BORE FOUR - Remember we were never at...

BIG BORE FOUR -

Remember we were never at MTOW for long in this machine! Initial subsonic cruise ex-LHR was 280-300. In the case of engine failure enroute, it usually ended up in the mid-30's...
Forum: Tech Log
29th Jan 2023, 20:45
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

PATTERN-IS-FULL... A pretty accurate...

PATTERN-IS-FULL...

A pretty accurate summary, I'd say; nice work!

One correction I'd make:



Is over-egging the pudding somewhat. There was a significant penalty on 3 engines, but it was...
Forum: Tech Log
5th Jan 2018, 20:02
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Favourite: OAF for fuel burn and subjective...

Favourite: OAF for fuel burn and subjective personal preference.

OAC second for the reg!.

OAD was indeed the schedulers' favourite for long charters although I have to say that I didn't have...
Forum: Tech Log
15th Dec 2017, 00:03
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

I’m not sure we *know* the tank 11 txfr pumps...

I’m not sure we *know* the tank 11 txfr pumps were on.

The 5/7 inlet valves were in the override position.

Even if the T11 txfr pumps were off, the de-air pump would pump fuel to the trim txfr...
Forum: Tech Log
14th Dec 2017, 12:35
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Tanks 5 and 7 inlet valves have an ‘override’...

Tanks 5 and 7 inlet valves have an ‘override’ position, do they not?

During the t/o roll, while the trim transfer pumps in 11 will be off, the de-air pump would allow flow through the trim...
Forum: Tech Log
30th Aug 2017, 11:13
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

It must make a fair difference: On average, much...

It must make a fair difference: On average, much of the 'interior' is ahead of the CG and remember AB has no cockpit, which is a fair chunk of weight a long way forward,

I vaguely recall that AB...
Forum: Tech Log
29th Aug 2017, 09:57
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

AB had them removed for balance reasons, given...

AB had them removed for balance reasons, given that it has no interior.
Forum: Tech Log
9th Feb 2017, 09:03
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

A slightly tongue-in-cheek comment, Megan. ...

A slightly tongue-in-cheek comment, Megan.

The BA Ops Manual requires an approach to be fully stable at 1000'R. It used to be slightly more relaxed, but even then a 'reduced noise' approach was an...
Forum: Tech Log
8th Feb 2017, 14:01
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

It would appear so....but I wonder if Vref+10...

It would appear so....but I wonder if Vref+10 came about as a result of earlier experience and that was the source of the story?

I get what you mean about the height response at the cockpit vs...
Forum: Tech Log
8th Feb 2017, 09:25
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

I'm not sure the 'negative elevator effect' was...

I'm not sure the 'negative elevator effect' was ever a practical issue in flight (as opposed to on rotation) - the response was entirely normal and I reckon that the increase in lift is near enough...
Forum: Tech Log
3rd Feb 2017, 17:35
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

I didn't find any problems in strong headwinds. ...

I didn't find any problems in strong headwinds.

We used to use Vref+10 instead of Vref+7 if it was windy (which made a bigger difference than the numbers may suggest) and, if anything, this made...
Forum: Tech Log
8th Dec 2016, 11:36
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Fraser - You are correct, the INS's had...

Fraser -


You are correct, the INS's had a access to a separate memory facility in later years of operation. The access method is as you described, and then a numerical entry to access the...
Forum: Tech Log
14th Jun 2015, 10:34
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

NineEighteen - 9mins brake release to M1.0...

NineEighteen -

9mins brake release to M1.0 sounds about right from SNN; out of JFK we consistently achieved M1.0 10mins after brake release and that was with a noise-abatement departure which...
Forum: Tech Log
22nd Apr 2015, 13:52
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

I've no idea about testing, but in line...

I've no idea about testing, but in line operations the Vmo peaked at 530kts, having started off rather lower depending on alt and mass. (Normally 380-400). I'm pretty certain there's at least one flt...
Forum: Tech Log
8th Apr 2015, 19:40
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Ruddman - No autobrakes. (And - with...

Ruddman -

No autobrakes.

(And - with my pedant's hat on - no 'manual' brakes either. Pedal brakes, yes. I know that the 'manual brakes' has become an accepted term, but the nonsense of it...
Forum: Tech Log
20th Mar 2015, 04:30
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Nope. Don't remember ever doing that. ...

Nope. Don't remember ever doing that.

Occasionally tech stopped ANU or SMA if tight for fuel.
Forum: Tech Log
19th Mar 2015, 12:55
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

……it was pumped. Tank 11 also had two...

……it was pumped.

Tank 11 also had two hydraulically-powered fuel transfer pumps to cater for other failures which may deprive you of elex power to the usual pumps, just to cover all eventualities.
Forum: Tech Log
18th Mar 2015, 08:30
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Time for descent may well have been a...

Time for descent may well have been a certification requirement for max FL - others will know better than I…

I don't believe the ramp schedules were designed to operate far above FL600, I vaguely...
Forum: Tech Log
13th Mar 2015, 09:29
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Just happened to look in, and saw this thread was...

Just happened to look in, and saw this thread was active again.

No trouble getting down from the CRZ:

Idle power would be used (the ramps should cope with the change of airflow). Idle power at...
Forum: Tech Log
22nd Feb 2014, 10:14
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

For the AICUs perhaps?

For the AICUs perhaps?
Forum: Tech Log
6th Dec 2013, 01:41
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

..... not convinced that theory's true..... ...

..... not convinced that theory's true.....

The PFCUs will offer a lot of damping, even while unpressurised. I've never seen a control surface 'slam' side to side on a hydraulically powered...
Forum: Tech Log
23rd Oct 2013, 20:03
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

'Dry' thrust was used for a go-around, except in...

'Dry' thrust was used for a go-around, except in the case of wind shear when 'contingency' was used. (A bit more than full thrust and reheat).
Forum: Tech Log
18th Oct 2013, 06:51
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

If you see a prototype, you will note that the...

If you see a prototype, you will note that the cabin windows are bigger; the windows shrank due to a certification requirement. In the course we were informed that, with all four a/c groups working,...
Forum: Tech Log
3rd Mar 2013, 20:22
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

FALTAHAN - I can answer just one of your...

FALTAHAN -

I can answer just one of your earlier questions - the one about the turn initiation off 31L.

As Bellerophon noted in a distant earlier post, we 'bugged' 20ft on the rad alt for this...
Forum: Tech Log
1st Feb 2013, 07:41
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

From an occasional visitor: I don't recall...

From an occasional visitor:

I don't recall using landing data cards.... There may have been a version buried deep somewhere, but we generally just set the limits and did any necessary perf...
Forum: Tech Log
13th May 2012, 22:19
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Post Layover: BA001 landed as BA002 was taxying out,...

Layover: BA001 landed as BA002 was taxying out, so a there and back was impossible with those timings.

In the days of BA001,2,3&4 operations it was possible to operate BA002 JFK-LHR then BA003...
Forum: Tech Log
4th May 2012, 17:15
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Minor correction, though: TMO was 127, not 128.

Minor correction, though: TMO was 127, not 128.
Forum: Tech Log
4th May 2012, 08:41
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Shaggy Sheep Driver: Yes! :ok:

Shaggy Sheep Driver:


Yes!

:ok:
Forum: Tech Log
28th Apr 2012, 10:47
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

No part of the skin will be warmer than the TAT...

No part of the skin will be warmer than the TAT probe, if that helps......
Forum: Tech Log
27th Apr 2012, 18:27
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Yep that's it. Imagine it this way - the...

Yep that's it.

Imagine it this way - the outside of the hull is hot and expands. The floor and other interior components, however, are about 100 degs cooler and so not subject to the same...
Forum: Tech Log
27th Apr 2012, 16:37
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

1) Effectively it was (not the skin, but the...

1) Effectively it was (not the skin, but the TAT probe. The highest temp rise would be at the stagnation point so one can be confident that TAT is a realistic answer for max skin temp).

2) ...
Forum: Tech Log
2nd Apr 2012, 19:57
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

Just thought I'd drop by and see what was...

Just thought I'd drop by and see what was happening on this thread........

My best personal experience of a quick t/round was a tech stop at SMA which we turned around in 45mins. Fuelling was...
Forum: Tech Log
14th Aug 2011, 19:41
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

hissinsid; The answer is that they...

hissinsid;



The answer is that they were remarkably similar in handling, I guess this is a function of the flight control system. Certainly the 747-100s and 200s I flew before Conc had a...
Forum: Tech Log
23rd Feb 2011, 18:50
Replies: 2,133
Views: 1,675,961
Posted By EXWOK

To be fair, I was talking about the 'bluewave'...

To be fair, I was talking about the 'bluewave' concept; I didn't think the Marilakes were out of place at all.
Showing results 1 to 35 of 111
 
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