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Search: Posts Made By: Smott999
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Forum: Rumours & News
17th Nov 2018, 19:02
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Only a software engineer but

.....from reading all the excellent info here, is it too simplistic to say that the airframe’s aerodynamic characteristics were a poor fit for the much-more powerful engines?

Thus extra software...
Forum: Rumours & News
15th Nov 2018, 15:24
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Can’t imagine

Being an engineer involved in the design or testing of this feature. Do we know if there were any significant objections raised prior to implementation? I recall the clashes between contractors and...
Forum: Rumours & News
11th Nov 2018, 20:03
Replies: 2,099
Views: 1,471,785
Posted By Smott999

..,but did it in the NG? Wasn’t Hal / STS still...

..,but did it in the NG? Wasn’t Hal / STS still enabled? Just not at mercy of bad AoA?
Forum: Rumours & News
11th Nov 2018, 14:39
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Also as an engineer , with only 2 AoAs, I’d be...

Also as an engineer , with only 2 AoAs, I’d be reluctant to make any decision based on a disagree. Perhaps a “large” disagree, but in any case, without a majority vote, asking HAL for nose-down Trim...
Forum: Rumours & News
11th Nov 2018, 12:30
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Yeah

it’s like they said “hey follow existing procedures” and then a couple days later it’s “oh here’s something related that we never published “

that cant be good
Forum: Rumours & News
11th Nov 2018, 12:15
Replies: 2,099
Views: 1,471,785
Posted By Smott999

That allied pilots link

Does not show the article. Only a News archive.
...perhaps only available to members?
Also a google search cannot find a thing. So I guess this emergency directive is....secret? At least to the...
Forum: Rumours & News
11th Nov 2018, 11:41
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Astonishing

That a critical control feature has apparently been undocumented/unavailable to the pilots flying the MAX.
As a long time software engineer to make these types of changes without notice to users...
Forum: Rumours & News
9th Nov 2018, 20:16
Replies: 2,099
Views: 1,471,785
Posted By Smott999

China 06

China 6 is a good example of that. AP did it’s best w slowly increasing control surface (rudder IIRC) inputs until it gave up.
Handing over the plane to the pilots in a sharply descending right turn...
Forum: Rumours & News
9th Nov 2018, 19:47
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Pilots May have thought STS was automatically...

Pilots May have thought STS was automatically disabled due to their increased speed. If what has been posted here is correct, prior versions had various activation triggers amongst which was low...
Forum: Rumours & News
8th Nov 2018, 14:30
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Assuming we have nose down trim

Can the FDR show if the ND trim was driven by STS vs pilots manual input?
If Rostov is to be believed I guess No, hence the fantastic notion that a pilot trimmed Down for 12 seconds on GA at 3,000...
Forum: Rumours & News
7th Nov 2018, 22:52
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Max only?

so what is different about MAX v NG?
Forum: Rumours & News
7th Nov 2018, 22:10
Replies: 2,099
Views: 1,471,785
Posted By Smott999

is this new to the MAX?

is this new to the MAX?
Forum: Rumours & News
7th Nov 2018, 18:21
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Re STS inputs

...up thread we had a great review of STS which indicated that it had many of its “own” inputs, including pitots on the stabilizer leading edge, hydraulic pressure A v B comparisons, also required AP...
Forum: Rumours & News
5th Nov 2018, 17:27
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Thanks again Ram

...again, as a SLF it seems a bit odd that there exists the opp to switch AP to B, whilst AP Stab Trim is fixated on A and at best can be disabled. Why not allow AP Stab Trim to use B? I’m sure...
Forum: Rumours & News
5th Nov 2018, 16:48
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Thanks I am not

I understand that STS has its own separate AS inputs.

however Ran indicated that AP has Stab Trim input as well, and theorized the Cap May have left AP Stab Trim on the faulty side A.
Merely SLF...
Forum: Rumours & News
5th Nov 2018, 15:57
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Thanks for this detail Rananim - question

....you theorize Captain realizes poss faulty AS on his side, and engages AP B (good side AS) ...yet AP Stab Trim is still being controlled by the (bad side) FCC A.
What should Captain have done...
Forum: Rumours & News
4th Nov 2018, 17:30
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Yep

I vote for airline disingenuous.
But it sure is troubling to think that the FC w engineer, presumably fully briefed on/even anticipating a particular problem, were still overcome. Assuming the...
Forum: Rumours & News
4th Nov 2018, 16:20
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Sorry to not be clear

I did indeed mean “flight/maintenance engineer” as mentioned up-thread per avherald, placed onboard as “anticipatory measure”.
....mostly to rebut the notion that FC had not read the log or been...
Forum: Rumours & News
4th Nov 2018, 15:31
Replies: 2,099
Views: 1,471,785
Posted By Smott999

And didn’t they have

an engineer on the flight?
Forum: Rumours & News
4th Nov 2018, 13:57
Replies: 2,099
Views: 1,471,785
Posted By Smott999

CVR Ping lost

now seeing rpts on cnn that they have lost the ping signal from CVR....getting buried ?
Forum: Rumours & News
2nd Nov 2018, 21:00
Replies: 2,099
Views: 1,471,785
Posted By Smott999

Re asking for Airspeed

...does that imply that the FC could not determine reliable airspeed from their 3 indicators....?
Forum: Rumours & News
2nd Nov 2018, 20:17
Replies: 2,099
Views: 1,471,785
Posted By Smott999

...thanks for this Air Bubba. I do wonder...

...thanks for this Air Bubba.

I do wonder about the struggle to gain altitude and the increasing speed, so thought about throttles together w the STS.

I’d imagine a startle factor for sure when...
Forum: Rumours & News
2nd Nov 2018, 14:33
Replies: 2,099
Views: 1,471,785
Posted By Smott999

I also meant to ask about AT

...if the STS may be providing unwanted/surprising nose-down trim, is the AT also in the grips of unreliable (too slow) IAS, and thus push the throttles? So the crew is dealing w low level nose down...
Forum: Rumours & News
1st Nov 2018, 21:27
Replies: 2,099
Views: 1,471,785
Posted By Smott999

As a non-pilot, the STS seems very important to me and also - a bit scary?

Is it possible that the STS, given an (incorrect, too-slow) air-speed, after the AP was disengaged (perhaps because AC noticed the conflicting AIS and is following the QRH)....might then trim...
Showing results 1 to 24 of 24


 
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