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14th Aug 2019, 23:59
Replies: 2,067
Views: 2,545,342
Posted By positiverate20

Add fuel to the flames

Ok, just to stoke the fire...

Bloodstream CO levels in the news has caught many here off-guard. Remember, the official post mortem cause of death is unchanged- blunt force trauma.

In light of...
6th Apr 2019, 00:39
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

🧐 Thrust also varies as a square of speed?! ...

🧐

Thrust also varies as a square of speed?!

Acceleration is "metres per second squared"

I think I see where you may be trying to come from... thrust and drag are balancing out, increasing...
5th Apr 2019, 20:09
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

A reduced speed by having a lower thrust setting...

A reduced speed by having a lower thrust setting to begin with, yes more controllable.

Reducing thrust from a higher thrust setting incurs a nose down moment. Basic stuff.

We're possibly...
5th Apr 2019, 18:03
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

Any reduction in power would have created a...

Any reduction in power would have created a significant AND moment. The longitudinal acceleration was positive throughout- right up until the final MCAS AND. (0.1g at end equivilant to...
5th Apr 2019, 13:59
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

I understand where you are coming from. I, too,...

I understand where you are coming from. I, too, was appalled at the attitude of some on here- stating the pilots must have been wrong based on where they came from. I also hypothesised a very similar...
27th Mar 2019, 15:00
Replies: 17,437
Views: 1,842,272
Posted By positiverate20

Boston Logan?

Boston Logan?
20th Mar 2019, 18:21
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

Gums- you are legendary This is one...

Gums- you are legendary



This is one scenario that I had hypothesized about a week ago, and the subsequent reaction from some posters led to me becoming disillusioned with this forum, coupled...
14th Mar 2019, 00:56
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

I agree with you on the sensor problem, but...

I agree with you on the sensor problem, but entirely disagree with the perception that a failure of the system would have minimal risk to the aircraft.

In the scenario given, hundreds of feet...
13th Mar 2019, 23:07
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

Can you provide a response to 1174 that would...

Can you provide a response to 1174 that would rule out that scenario?
13th Mar 2019, 20:13
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

I know there's little evidence at this stage for...

I know there's little evidence at this stage for this tragedy, but to elaborate and hypothesise about MCAS function:

1. MCAS activated by errant AoA vane data. (This same data may also lead to...
13th Mar 2019, 16:58
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

I know the thread has focused on certain possible...

I know the thread has focused on certain possible causes, and some have suggested that each of the suggested causes should be handled easily if the crew were adequately trained and professional. If...
13th Mar 2019, 14:47
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

Yes there are quite a few trim reports including...

Yes there are quite a few trim reports including numerous when electric trim is inoperable. Off the track a wee bit here, but, I found this report by a FO clearly confused by automated trim- except...
13th Mar 2019, 13:52
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

Here's a couple of extracts to look at ...

Here's a couple of extracts to look at

REPORT- trim after AP is turned on: December 2018



REPORT- trim after AP is turned on: November 2018
12th Mar 2019, 21:54
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

Grrr The irony of some flights not being allowed into...

The irony of some flights not being allowed into the airspace:

The minute they call a mayday they'll be given assistance and allowed in!

So, when it seems to be functioning fine they're told...
12th Mar 2019, 21:25
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

This I entirely agree with and have stated...

This I entirely agree with and have stated previously myself! Why would critical software ever rely on unverified data from one single item of hardware? It doesn't make sense. If you have foolproof...
12th Mar 2019, 19:45
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

To play devil's advocate. So on any occasion...

To play devil's advocate.

So on any occasion on climb after TO and this was to occur, this would be your modus operandi? Stick shaker or not? Low or erroneous ASI reading or not? Just pull against...
11th Mar 2019, 22:13
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

All I'm saying is, if in the exact conditions in...

All I'm saying is, if in the exact conditions in which you speak, if stick shaker triggered, if either your ASI or AoA in front of you is showing something abnormal, then how can you instantly...
11th Mar 2019, 03:08
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

It is shocking how this system was introduced-...

It is shocking how this system was introduced- only being documented and publicised following the death of 189 people.

I can see the logic as to why they'd build it in- if it was 100% operational...
11th Mar 2019, 01:53
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

Yes, sounds easy if you're 100% confident that...

Yes, sounds easy if you're 100% confident that MCAS is wrong. But, MCAS is reacting to sensor data- the same data that the instruments in front of your eyes are relaying to you. If your AOA indicator...
10th Mar 2019, 22:00
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

Also be useful to know which data is correct. The...

Also be useful to know which data is correct. The data publicised so far is ADS-B, so if it is an onboard sensor problem causing bad data to flight control, then surely some of the FR data is bad too?
10th Mar 2019, 21:13
Replies: 5,127
Views: 10,276,495
Posted By positiverate20

Possibly off topic, but, why would brand new...

Possibly off topic, but, why would brand new aircraft sensors and indicators fail within months? The software, MCAS, is reliant on good data, if the data was always good then there wouldn't be a...
9th Mar 2019, 20:07
Replies: 921
Views: 2,140,601
Posted By positiverate20

Apologies if this has already been answered, was...

Apologies if this has already been answered, was the aircraft normal or inverted? I can't tell from the videos I've viewed.

Loss of control (for whatever reason)... followed by inversion, outside...
9th Mar 2019, 06:03
Replies: 2,067
Views: 2,545,342
Posted By positiverate20

Sorry but disagree, and also believe Luc Lion may...

Sorry but disagree, and also believe Luc Lion may have some vested interest by his constant denial. The passenger believed this was a commercial charter just for him- when did he ever think...
4th Mar 2019, 21:43
Replies: 2,067
Views: 2,545,342
Posted By positiverate20

Entirely agree. I think many here are stating...

Entirely agree.
I think many here are stating different pieces of the same puzzle. This pilot tried to fly VFR over sea at night, most likely fully reliant on the A/P. I have little doubt A/P was...
1st Mar 2019, 22:38
Replies: 2,067
Views: 2,545,342
Posted By positiverate20

Exactly, maybe now the public will themselves...

Exactly, maybe now the public will themselves seek out legitimate operators (whom might finally see some fruit for their labours) The strict adherence to the relevant rules and the cost implications...
Showing results 1 to 25 of 38
 


 
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