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Search: Posts Made By: tanimbar
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Forum: Rumours & News
19th Jan 2010, 09:06
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

"little is known"

Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.

In support of Phil Gollin's comments ....

The critical issue arising from the crash of BA038 is starkly...
Forum: Rumours & News
6th Apr 2009, 12:04
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Sir Richard - min fuel inlet temp is relative, not absolute

Thanks for making clear the figures in that document that I mentioned.

Not for sure. It was one possibility I identified from the words used in the document.

Thanks again.
Forum: Rumours & News
20th Mar 2009, 13:17
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Dak Man - are we discussing the same thing?

Thanks for the reply. I think we might not be discussing the same thing.

If I understand the Airbus article properly ( ...
Forum: Rumours & News
20th Mar 2009, 10:23
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

DAK Man -I'm just curious but didn't make this clear

You said,
.

I know. I should have made it clear that my question arises purely from curiosity. I'm not implying anything by asking, "What happens next if fuel at or below 3C enters an RR engine...
Forum: Rumours & News
20th Mar 2009, 08:45
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

What happens if fuel enters engine below 3C?

Warning: I'm non-professional; not crew, not engineer - just guest here, thanks.

The thread has now turned to an area that intrigued me some time ago (419, page 21) and caused me to write the...
Forum: Rumours & News
14th Mar 2009, 10:30
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

An heart attack brought down BA038 .... analogy!

Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.

A light hearted start -
the similarity of this accident with a plaque induced heart attack is...
Forum: Rumours & News
4th Feb 2009, 12:37
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

lomapaseo, airfoilmod

Iomapaseo, so my tongue-in-cheek comments were actually foot-in-mouth! Apologies to RR. Thanks for the correction.

Airfoilmod, to tell the complete tale would require an explanation the industry...
Forum: Rumours & News
4th Feb 2009, 10:13
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

News management - a necessary strategy

Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.

I suspect we are being given a lesson in global news management. I think it is a good and necessary lesson....
Forum: Rumours & News
8th Sep 2008, 17:36
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Oilandgasman ...

Thanks for the link to the PDF from Clarcor. Just read it and it doesn't help us understand the behaviour of water in fuel as the temperature drops, other than in a general way.

Clarcor, as you...
Forum: Rumours & News
8th Sep 2008, 16:53
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Scrivenger .. actually, its worse than you think!

It is true that the AAIB report that 'little is known' about ice crystals in fuel at temperatures below 18C (0F) - see my post 1725,page 87.

Its worse because the AAIB don't mention the overall...
Forum: Rumours & News
5th Sep 2008, 15:25
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Warning: I'm non-professional; not crew, not...

Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.

A more detailed reading of the AAIB interim report leads me to the following conclusions:
1) The AAIB...
Forum: Rumours & News
4th Sep 2008, 17:55
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

AAIB professionalism and "little known" of cold fuel??

Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.

I've only speed-read the report so far but wanted to make a couple of points.

Previously I wrote,
...
Forum: Rumours & News
13th Aug 2008, 17:01
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

VnV2178B .. has FADEC been investigated?

VnV2178B,
I like asking daft questions every now and then, even when I don't expect an answer, but can you say whether the R-R FADEC software/hardware has been investigated in relation to the BA038...
Forum: Rumours & News
23rd Jul 2008, 11:15
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

dontdoit ... it's no laughing matter

Granted that the AAIB might be "one of the last bastions of consummate professionalism" it nevertheless does not operate in a vacuum.

I do not denigrate the integrity of the AAIB by my comment...
Forum: Rumours & News
23rd Jul 2008, 09:44
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Directive before winter; risk and Sod's Law.

Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.

We have already speculated on some form of directive/restriction on ETOPS being issued before the onset of...
Forum: Rumours & News
18th Jun 2008, 17:31
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

sky9 - That's no new update

The update you refer to is a previous release, 3/2008, issued in early May.

The 16 June date on the website relates to the 6/2008 AAIB Bulletin within which is published (again) S3/2008.

I...
Forum: Rumours & News
5th Jun 2008, 11:50
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Fuel did not have "spectacularly different freezing point"

Some here are saying the -57C freezing point of the remaining fuel is spectacularly low.

Actually this does not seem to be true. If you examine what Shell have to say about fuels around the...
Forum: Rumours & News
30th May 2008, 09:45
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Phil Gollin ...

I suspect the AAIB will be thinking, "let's not take our fences until we have to".

Meaning, there is a long way to go before a FINAL report is issued - possibly years. And during that time the...
Forum: Rumours & News
14th May 2008, 16:50
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Shawk - HPs part of engine

Shawk,
You say that "cavitation noise tends to be high frequency and is likely to be attenuated by the aircraft structure".

The cavitating high pressure fuel pumps (HPFP), that I mentioned might...
Forum: Rumours & News
14th May 2008, 10:44
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Unusual sound - cavitation?

Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.

Shawk in post 1110 wrote while discussing fluidic resonance in a tuned circuit:


If the reports are...
Forum: Rumours & News
13th May 2008, 10:56
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Ground and/or air test? Next bulletin already written?

Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.

Seems Andy Pasztor was right in his article in WSJ, post 908. No surprise, afterall why would David King...
Forum: Rumours & News
4th May 2008, 07:54
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Oluf please stop banging on about core icing

Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.

Dear Oluf,
Please stop insisting in this thread that core icing played a role in the crash of G-YMMM.
...
Forum: Rumours & News
2nd May 2008, 08:11
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

How do you detect past ice accumulation on engine?

lomapaseo you wrote:



Can you explain please or recommend a document/paper that covers this subject?

And, does the evidence indicate past icing events?

I ask purely out of interest.
Forum: Rumours & News
26th Apr 2008, 13:49
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Need not be H20 that caused problem

Many posts comment on ice/slush as being the primary cause of fuel degradation but this need not be so. The fuel is complex and a prolonged cold-soaking, in a moderately high frequency environment,...
Forum: Rumours & News
25th Apr 2008, 10:40
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Operational changes ahead ... and redesigns!

Warning: I'm non-professional; not crew, not engineer - just scientist guest and thanks.

Hello again,
Referring to the Andy Pasztor article in WSJ, post 908, and my post 751, 'What if no proof...
Forum: Rumours & News
2nd Apr 2008, 10:18
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

What if no proof of cause - what does AAIB do?

Warning: I'm non-professional; not crew, not engineer - just guest and thanks.

I've been wondering what would the AAIB do if they could not demonstrate to a high probability the cause of the...
Forum: Rumours & News
5th Mar 2008, 18:08
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Squawk_ident - scavenged ice from centre tank

Squawk_ident's post is interesting, especially where it says:
"Indications are that the water in the scavenge system is freezing prior to discharging in the main tank. Frozen water (or ice) in the...
Forum: Rumours & News
28th Feb 2008, 08:57
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Correct response - wrong circumstance

Warning: I'm non-professional; not crew, not engineer - just guest here, thanks.

In an earlier post I asked the following but no one has answered. Can anyone assist?

"An article on...
Forum: Rumours & News
25th Feb 2008, 16:33
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Min Inlet Temp - what happens if not reached?

Warning: I'm non-professional; not crew, not engineer - just guest here, thanks.

I'm back, not to bang-on about fuel stratification, but to ask a question of those who know.

An article on...
Forum: Rumours & News
23rd Feb 2008, 09:08
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Fuel stratification - bowing out (for now)

Warning: I'm non-professional; not crew, not engineer - just guest here, thanks.

Green-dot,your post #328, thanks for the clarification regarding the visibility of maintenance pages to the flight...
Forum: Rumours & News
22nd Feb 2008, 10:17
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

138 gallons H20 and stratification

Warning: I'm non-professional; not crew, not engineer - just guest here, thanks.

Interesting posts overnight, many concentrating on the fuel and its state.

Woodpeckers post #280, and others,...
Forum: Rumours & News
21st Feb 2008, 09:14
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Fuel stratification - follow-up comments

Follow-up to my earlier posting (#195, page 10) on the possibility of fuel stratification.
Warning: I'm not crew nor engineer, just scientist.

Hand Solo, you wrote:
"I would think stratification...
Forum: Rumours & News
20th Feb 2008, 10:05
Replies: 3,239
Views: 1,137,470
Posted By tanimbar

Can fuel become stratified?

Hello,
First post; I'm not flight crew, nor engineer, just scientist.
Apologies for trespassing on your professional forum to ask the following but my curiosity has gotten the better of me.

Can...
Showing results 1 to 33 of 33


 
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