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Search: Posts Made By: ChristiaanJ
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Forum: Tech Log
18th Jun 2015, 16:01
Replies: 2,084
Views: 1,503,246
Posted By ChristiaanJ

leb001, While it's a nice pic, the artist has...

leb001,
While it's a nice pic, the artist has been taking a fair amount of artistic liberties....
For instance, the door located at the forward end of the wing, just forward of the emergency exit,...
Forum: Tech Log
9th Jun 2015, 22:01
Replies: 2,084
Views: 1,503,246
Posted By ChristiaanJ

leb001, I'm afraid 1-GEE is a nonsense...

leb001,
I'm afraid 1-GEE is a nonsense registration. A British Concorde registration would be "G-" followed by four letters.
But, if you can post a photo of the painting, it may be possible to...
11th Dec 2014, 21:42
Replies: 23
Views: 7,821
Posted By ChristiaanJ

Putting the clues together sofar, it appears to...

Putting the clues together sofar, it appears to be an early Mk III.
The tailpipes are the 'thin' ones of the Welland.
The wingtips are the round ones of the Mk III, not the straight 'cut-off' ones...
11th Dec 2014, 18:12
Replies: 23
Views: 7,821
Posted By ChristiaanJ

Gloster Meteor Dinky Toy

Early 1950s, I actually got to sit in a Gloster Meteor (probably a Mk 4), on a Dutch airbase - that was still possible in those days.
And of course, I had a liitle diecast Dinky Toy Meteor on my...
5th Nov 2014, 21:59
Replies: 281
Views: 210,316
Posted By ChristiaanJ

hotelpresident, Unfortunately your "source" is...

hotelpresident,
Unfortunately your "source" is a highly doubtful website, and there is no such thing as a British Aerospace Agency.
Don't believe all the "urban fiction" on the net......
Forum: Tech Log
22nd Oct 2014, 00:28
Replies: 10
Views: 3,274
Posted By ChristiaanJ

AF330, I don't mind trying to answer your...

AF330,
I don't mind trying to answer your questions, but what is a PEPDC ?
10th Oct 2014, 23:11
Replies: 15
Views: 5,521
Posted By ChristiaanJ

Was the pilot North-Korean?

Was the pilot North-Korean?
Forum: Tech Log
8th Mar 2014, 17:44
Replies: 2,084
Views: 1,503,246
Posted By ChristiaanJ

consub, Slightly amazed about your note re the...

consub,
Slightly amazed about your note re the 5400 series TTL being embargoed.
I pulled a random board from "my" AICU, and all of it is 5400 series, datecodes 71 and 72.
I hope you can tell us...
Forum: Tech Log
22nd Dec 2013, 17:06
Replies: 35
Views: 8,742
Posted By ChristiaanJ

Concorde had a combined AoA/G indicator (vertical...

Concorde had a combined AoA/G indicator (vertical 'tape' instrument).
Forum: Rotorheads
12th Dec 2013, 20:44
Replies: 2,609
Views: 839,338
Posted By ChristiaanJ

212man, I worked on a 3-axis A/P that was...

212man,
I worked on a 3-axis A/P that was fitted both to the Alouette III and the 212... but that goes back to the mid-seventies, so I reckon I'd better stay out of the discussion !
Forum: Tech Log
21st Nov 2013, 16:40
Replies: 24
Views: 11,362
Posted By ChristiaanJ

On Concorde we had a bicycle bell .... equally...

On Concorde we had a bicycle bell .... equally cheap and cheerful, and very distinctive !
Forum: Tech Log
31st Oct 2013, 21:59
Replies: 19
Views: 19,225
Posted By ChristiaanJ

Cough, Thanks for the video, good illustration...

Cough,
Thanks for the video, good illustration !
Totally off-topic, but it was also a good recording of the barking dog in the wheel well.
19th Sep 2013, 15:38
Replies: 59
Views: 29,463
Posted By ChristiaanJ

Dave, "Incidentally I'd be fascinated to know...

Dave,
"Incidentally I'd be fascinated to know what you think thrust reversers had to do with the Concorde accident".
I shouldn't bother ...... he's obviously been reading urban legends.
Not to...
Forum: Tech Log
16th Sep 2013, 17:07
Replies: 26
Views: 12,998
Posted By ChristiaanJ

more trivia

When Sud designed and built the Caravelle, they saved themselves a lot of time, effort and trouble by simply buying a complete Comet nose (and presumably the drawings, and a license) from De...
Forum: Tech Log
22nd Apr 2012, 20:26
Replies: 2,084
Views: 1,503,246
Posted By ChristiaanJ

Gordon is right: the flight control inverters...

Gordon is right: the flight control inverters converted the 28V DC aircraft supply to the 26V AC 1800Hz that supplied the flying controls.
And the 1800Hz was chosen because it's halfway between the...
Forum: Tech Log
7th Apr 2012, 17:03
Replies: 251
Views: 57,084
Posted By ChristiaanJ

Nice one, roulishollandais....

Nice one, roulishollandais....
Forum: Tech Log
27th Mar 2012, 22:12
Replies: 38
Views: 8,128
Posted By ChristiaanJ

IGh, The two examples you mention both were...

IGh,

The two examples you mention both were ESD, not RF effects.

As to the autothrottle certification problem you quoted... I suppose you've seen my 'tale' about Concorde, where during early...
Forum: Tech Log
24th Mar 2012, 21:42
Replies: 38
Views: 8,128
Posted By ChristiaanJ

Machinbird, Thanks. I totally agree with your...

Machinbird,
Thanks.
I totally agree with your "never say never", especially since "you were there".
But I'm still baffled........

CJ
Forum: Tech Log
24th Mar 2012, 18:48
Replies: 38
Views: 8,128
Posted By ChristiaanJ

Machinbird, I'd say that is how urban legends...

Machinbird,
I'd say that is how urban legends are created ....
A fuel tank is still to a large extent a 'Faraday cage', so RF would not have such a major effect.

"I never saw that particular...
Forum: Tech Log
23rd Mar 2012, 17:34
Replies: 6
Views: 1,924
Posted By ChristiaanJ

NorthernKestrel, 1) Thanks for the link !!!...

NorthernKestrel,

1) Thanks for the link !!! Just watched all of it.

2) "His comments on the next generation of pilots (expect "little or no training" needed) & technology are noteworthy."...
Forum: Cabin Crew
15th Mar 2012, 18:04
Replies: 1,223
Views: 1,307,000
Posted By ChristiaanJ

RedBullAddict, Nice one..... ! Funnily...

RedBullAddict,
Nice one..... !
Funnily enough, most internet video (YouTube, various news orgs) will have a warning if there is (for some reason) no accompanying audio. Seems that somebody missed...
Forum: Tech Log
28th Feb 2012, 17:07
Replies: 1,353
Views: 273,918
Posted By ChristiaanJ

"Flying the FD" (FD commands are computed in...

"Flying the FD" (FD commands are computed in exactly the same way as the AP commands) just after the AP has disconnected seems, to me, the height of folly.
I hope pilots are aware of that.......
Forum: Tech Log
25th Feb 2012, 22:14
Replies: 1,353
Views: 273,918
Posted By ChristiaanJ

roulishollandais, We seem to be on slightly...

roulishollandais,

We seem to be on slightly different wavelengths.....

A CMM is aimed at the maintenance engineer who gets a supposedly faulty piece of equipment dumped on his bench, and has to...
Forum: Tech Log
23rd Feb 2012, 16:39
Replies: 1,353
Views: 273,918
Posted By ChristiaanJ

I don't quite get your point.... An ATEC is...

I don't quite get your point....

An ATEC is a huge computer-controlled automatic test bench, used for initial reception of the equipment, and for testing and fault-finding of equipment "thrown...
Forum: Tech Log
22nd Feb 2012, 16:30
Replies: 2,084
Views: 1,503,246
Posted By ChristiaanJ

MIA-IAD is less than a 1000 nm hop, so the...

MIA-IAD is less than a 1000 nm hop, so the question is really "was the fuel cheaper in Miami, so they tanked up there and only topped up in Washington?" (unlikely, flying fuel around is a waste of...
Forum: Tech Log
21st Feb 2012, 14:15
Replies: 2,084
Views: 1,503,246
Posted By ChristiaanJ

YearoftheTiger, Good sources of detailed...

YearoftheTiger,
Good sources of detailed drawings are the 'IPC' (illustrated Parts Catalogue) and the 'SRM' (Structural Repair Manual).
Originals (paper) are rarer than the proverbial rocking...
Forum: Tech Log
19th Feb 2012, 14:24
Replies: 1,412
Views: 442,571
Posted By ChristiaanJ

HN39, Thanks for the link! Oops, another 80-odd...

HN39,
Thanks for the link! Oops, another 80-odd pages to plow through.....
The FAA tech report seems to deal with engine icing at first sight, but I'll refrain from comments until I've read it.
Forum: Tech Log
18th Feb 2012, 21:11
Replies: 1,412
Views: 442,571
Posted By ChristiaanJ

Many thanks, HN. I've skip-read it and will...

Many thanks, HN.
I've skip-read it and will read it again, even if it is not quite my field.
But at first sight, I've not seen an unequivocal requirement for re-defining the pitot tube...
Forum: Tech Log
18th Feb 2012, 17:18
Replies: 2,084
Views: 1,503,246
Posted By ChristiaanJ

Shanewhite, define "components".... If you...

Shanewhite, define "components"....
If you count every rivet, every bolt, every resistor in the electronics... you'l easily get to a few million....
I don't think YearoftheTiger is going to quite...
Forum: Tech Log
18th Feb 2012, 17:07
Replies: 1,412
Views: 442,571
Posted By ChristiaanJ

Oh dear.... Lieman is back. I thought the...

Oh dear.... Lieman is back.

I thought the mods got rid of him and his unbased theories?
Forum: Tech Log
18th Feb 2012, 16:35
Replies: 1,412
Views: 442,571
Posted By ChristiaanJ

jcjeant, You obviously totally missed my...

jcjeant,
You obviously totally missed my point.....
Aircraft and aircraft equipment are designed, certified and manufactured in accordance with airworthiness requirements.
This also applies to...
Forum: Tech Log
18th Feb 2012, 11:59
Replies: 2,084
Views: 1,503,246
Posted By ChristiaanJ

I'm not sure to what extent you intend to model...

I'm not sure to what extent you intend to model the mechanism... but I wouldn't call it simple.

It's not Rube Goldberg, but it's still a pretty complex mechanism, with rails, hydraulic cylinders,...
Forum: Tech Log
17th Feb 2012, 22:51
Replies: 1,412
Views: 442,571
Posted By ChristiaanJ

HN39, thaks for the link. I haven't read all...

HN39, thaks for the link.
I haven't read all the 77 pages yet.
But... at first sight it deals with 'low-level" icing and the ATR-72 accidents, not with the problem of the certification problems of...
Forum: Tech Log
14th Feb 2012, 21:45
Replies: 2,084
Views: 1,503,246
Posted By ChristiaanJ

johnjosh43, You're quite right about the cable...

johnjosh43,
You're quite right about the cable 'problem'.
It's not even typical to Concorde.... airframes are aluminium, while the control cables are steel, so the expansion factor is not the same,...
Forum: Tech Log
10th Feb 2012, 20:59
Replies: 44
Views: 18,225
Posted By ChristiaanJ

I'm following this with interest. I can write...

I'm following this with interest.
I can write 'aeronautical engineer' behind my name, so I've got some knowledge about structural engineering, even if I sailed off into the flight control world.
...
Showing results 1 to 35 of 1000
 


 
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