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Search: Posts Made By: Graybeard
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Forum: Tech Log
14th Apr 2011, 04:53
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

WRG

I had doubts about that definition of WRG, and PJ2 negated it, but perhaps too politely, losing impact. On 12 Apr at 14:09 he wrote that WRG means the fault is not correlated by another computer of...
Forum: Tech Log
14th Apr 2011, 04:42
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

Blame?

It's a nominally French airplane flown by a nominally French airline certified and investigated by a French authority, with nominally French pitot probes that are suspect..

Who would they blame...
Forum: Tech Log
12th Apr 2011, 13:34
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

It's a single string signal from the back of the...

It's a single string signal from the back of the WXR R/T down the waveguide, out the antenna, through the radome, to the target, and back again. The only monitor for that is the Mk-1 eyeball looking...
Forum: Tech Log
12th Apr 2011, 12:19
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

WX Radar

From what I read early on in the first thread in this accident, the accident plane was using the same WXR-700X system it had when new. That means manual tilt control to scan down into the wet part of...
Forum: Tech Log
10th Apr 2011, 15:51
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

Electrical power supply problem? Please explain...

Electrical power supply problem? Please explain what kind of power supply problem it could be, Olivier. Are the TCAS antennas in this case considered internal or external?
Forum: Tech Log
10th Apr 2011, 13:12
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

Back to the TCAS

Maybe it's time to shed some topics, such as VS and TCAS, into separate threads. That said, I'll continue here.
-------------

Thanks to mm43 and HN39 for your responses on 8 April.

As a...
Forum: Tech Log
8th Apr 2011, 04:07
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

Altitude and its valid is transmitted on a data...

Altitude and its valid is transmitted on a data bus from the Air Data part of the ADIRU to the transponder. The transponder transmits own altitude on another data bus to the TCAS, and over the air to...
Forum: Tech Log
8th Apr 2011, 01:21
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

Lightning

Along that line, Lazerdog, nobody every gave a good explanation for the TCAS Fail in the ACARS message. Everybody just dismissed it as due to the pitot fails.

Again, a pitot fail will not affect...
Forum: Tech Log
27th May 2010, 12:47
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

Without regard to 447, I wonder if there hasn't...

Without regard to 447, I wonder if there hasn't been an overlooked accumulation of ash affecting the bleed holes in pitot probes of planes in the past two months? It would show up as increased speed...
Forum: Tech Log
6th Mar 2010, 01:25
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

I saw the B-52 pic only recently. Yes, it had a...

I saw the B-52 pic only recently. Yes, it had a small bit of VS sticking up, but more importantly, #1 and #8 engines were well outboard and could be modulated for yaw stability much better than a...
Forum: Tech Log
27th Feb 2010, 16:03
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

Let me rephrase, then: The article, as translated...

Let me rephrase, then: The article, as translated and posted here, has little value.

GB
Forum: Tech Log
26th Feb 2010, 12:16
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

"Framing" the Argument

Early on, the article revealed its own value:



GB
Forum: Tech Log
7th Jan 2010, 21:18
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

The CVR/FDR is a fortified box inside the...

The CVR/FDR is a fortified box inside the frangible orange box you see on an intact airplane. The pinger, an afterthought, is bolted to the outside of the frangible box. There is no electrical nor...
Forum: Tech Log
22nd Dec 2009, 22:31
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

Has there ever been a cost/benefit study of CVR...

Has there ever been a cost/benefit study of CVR and FDR? Hauling 50-100 lb of hardware and wire for the lifetime of every airplane is no small cost.

GB
Forum: Tech Log
10th Dec 2009, 02:27
Replies: 3,893
Views: 1,544,001
Posted By Graybeard

Why Bother?

What can be found that would matter?

We already know the pitot probes were crap.

We already know AF wasn't using the latest and greatest WX radar.

We already are pretty sure the pilots...
Showing results 1 to 15 of 15


 
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