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Search: Posts Made By: Leightman 957
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1st Apr 2019, 17:25
Replies: 30
Views: 19,183
Posted By Leightman 957

Excellent post glo. Thank you. Your specific...

Excellent post glo. Thank you. Your specific points are unfortunately systemic to 'advanced' design, not merely in aviation, and the trend is accelerating. Meanwhile aviation accidents are reliable...
20th Mar 2019, 18:22
Replies: 5,127
Views: 10,320,895
Posted By Leightman 957

Automation surprise

RE Ian:
Full pdf doc here:
https://core.ac.uk/download/pdf/33664589.pdf
3rd Jun 2016, 17:08
Replies: 1,184
Views: 2,496,514
Posted By Leightman 957

I'm amazed at the fuel dye proponents, for the...

I'm amazed at the fuel dye proponents, for the reasons given so far. There's no reason to dye all fuel when it is needed only for the downed A/C. Dye also isn't a lot better than an oil slick and no...
26th Mar 2016, 01:18
Replies: 1,543
Views: 1,538,143
Posted By Leightman 957

"scissors" = "shear", no? Help from our...

"scissors" = "shear", no?

Help from our Russian friends would be useful.
25th Mar 2016, 21:26
Replies: 1,543
Views: 1,538,143
Posted By Leightman 957

Very rough Google translation of spitfire's link,...

Very rough Google translation of spitfire's link, request fluent speaker:

Became known to the crew last word "Boeing", crashed in Rostov-on-Don. They do not reveal the whole story of what...
9th Nov 2015, 03:10
Replies: 2,082
Views: 2,286,402
Posted By Leightman 957

Vid @ 8:58

Different damage type than the L HS. Appears some of center section remains...hard to tell, but the bend up at the root is probably deformed aluminum holding the bend so suggests that's the failure...
8th Nov 2015, 19:21
Replies: 2,082
Views: 2,286,402
Posted By Leightman 957

HS top? LE?

Ok, thanks FDM, LE/TE very clear by your pic. Deleted all previously written in this post, except: So What caused the flutter? Control linkage failure? HS pivot failure?

Very difficult to imagine...
8th Nov 2015, 18:06
Replies: 2,082
Views: 2,286,402
Posted By Leightman 957

HS second pic

Kulver, Thanks so much for your continuing supply of photos. Your last HS pic at 1790 shows a LOT of leading edge damage not previously visible. The damage is generalized along the visible length (as...
8th Nov 2015, 17:53
Replies: 2,082
Views: 2,286,402
Posted By Leightman 957

What it wasn't

After 1800 posts is a lot of certainty by posters had emerged, yet the current set of posted conclusions are significantly divided in direct opposition. A lot of certainty is going to eventually be...
4th Nov 2015, 15:58
Replies: 2,082
Views: 2,286,402
Posted By Leightman 957

Shorn HS

I find it odd that the discovery of the HS pieces (I still haven't seen pics of both) has been met with quick general prune agreement that they failed in direct shear due to aerodynamic forces from...
3rd Nov 2015, 16:01
Replies: 2,082
Views: 2,286,402
Posted By Leightman 957

VS HS attach

Ignoring for the moment the reported wide differences of pax injuries fore to aft, the fuselage attach points of the VS spar and HS are proximal and designed to distribute the highest loads in the...
4th Apr 2015, 20:09
Replies: 3,529
Views: 4,940,716
Posted By Leightman 957

Another 25 testing areas

The many mentions of possible investigative intrusions into every aspect of a pilots life represent more ways a pilot may be incorrectly deemed unfit to fly. Those intrusions are all valid because we...
31st Mar 2015, 02:03
Replies: 3,529
Views: 4,940,716
Posted By Leightman 957

RE FDR not recovered, no point of impact, depression, recurrence?

Previous posts note that it is the FDR memory, not the FDR chassis, which remains missing.Just saying.

“No point of impact” is assumed because one has not been published and there is no apparent...
28th Mar 2015, 17:15
Replies: 3,529
Views: 4,940,716
Posted By Leightman 957

The total environment

Great post Mark Beacon (currently 2390). Trust, wisdom, familiarity with the team, all in decline. I could tell a similar story. Trust amplifies when it is given, but has a hard time growing when not...
26th Mar 2015, 22:24
Replies: 3,529
Views: 4,940,716
Posted By Leightman 957

Altitude set once or more than once?

I have read all the posts before posting. I wish others did. I have not seen a resolution to whether the altitude set was made one time only, just before the beginning of descent, or whether there...
11th Feb 2015, 23:14
Replies: 3,924
Views: 3,796,624
Posted By Leightman 957

Expectations vs reactions

RetF4 thanks for your several well thought out posts. But your conclusion that early stall avoidance may require uncomfortable and never before experienced sensations (dirt, papers, coffee, and...
11th Feb 2015, 02:45
Replies: 3,924
Views: 3,796,624
Posted By Leightman 957

The unstallable stall

Vilters, I don't mean to challenge you, rather to note there has been some lengthy previous conversation--correction--broadsides right here regarding whether a deep stall of long duration was even...
10th Feb 2015, 17:18
Replies: 3,924
Views: 3,796,624
Posted By Leightman 957

RE IanW's stack of manuals: I attended a local...

RE IanW's stack of manuals: I attended a local emergency planning meeting, with fire department, and city, county, and state officialdom. The city manual was 50 pages long. The mayor and I were the...
9th Feb 2015, 16:47
Replies: 3,924
Views: 3,796,624
Posted By Leightman 957

Pilot confidence

Bubbers at 3156: "I think he means no pilot should depend on an autopilot so much that if it fails he cannot safely continue operating the aircraft manually from where the autopilot failed. MAA for...
6th Feb 2015, 21:38
Replies: 3,924
Views: 3,796,624
Posted By Leightman 957

Clarification

Thanks for the clarification UF, but I think I understood what you meant. It may well have been me who was unclear. I have less concern about older pilots who came up through the ranks flying more...
6th Feb 2015, 19:22
Replies: 3,924
Views: 3,796,624
Posted By Leightman 957

Pushing over

Uncle Fred: Even having been exposed to some of this training in the sim, I did not really take to heart what it would be like to have to push over that much at 350 and how I would have to be...
4th Feb 2015, 20:30
Replies: 3,924
Views: 3,796,624
Posted By Leightman 957

A320 fuel trim

A320 does not have an aft fuel trim tank. However to amend my earlier post, A320 CG does move with fuel consumption. So my question for Those Who Know remains somewhat the same: Would cg changes due...
4th Feb 2015, 17:07
Replies: 3,924
Views: 3,796,624
Posted By Leightman 957

RE Various posts

In the early 80's I believe NASA did some testing of deep stall characteristics using a single place T tail Schweitzer 1-36 which was modified to permit the horizontal stab to angle nose down to...
3rd Feb 2015, 20:01
Replies: 3,924
Views: 3,796,624
Posted By Leightman 957

SOP monkey

SOP monkey: "I do stand to be corrected, as the day I stop learning, for me is the day to give up.."

I wish there was more evidence of this attitude in posts, and second the request for more...
2nd Feb 2015, 04:31
Replies: 3,924
Views: 3,796,624
Posted By Leightman 957

Argument bruhaha

Triskele: 'At 6:17 a.m. on Dec. 28, three minutes after air traffic control unsuccessfully tried to make contact and asked nearby aircraft to try to locate QZ8501, the A320 turned to the left and it...
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