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Search: Posts Made By: cwatters
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Forum: Tech Log
24th Aug 2011, 10:19
Replies: 3,435
Views: 1,674,273
Posted By cwatters

Safety Concerns writes... Well yes but...

Safety Concerns writes...



Well yes but isn't it the job of aircraft designers and pilot trainers to look at previous instances of human failure and try to reduce the chances of other people...
Forum: Tech Log
18th Aug 2011, 12:45
Replies: 3,435
Views: 1,674,273
Posted By cwatters

Just had another look at the third report and was...

Just had another look at the third report and was struck by how hard the PF appears to be working the roll axis right after the disconnect. See page 29..
...
Forum: Tech Log
8th Aug 2011, 10:23
Replies: 3,435
Views: 1,674,273
Posted By cwatters

Deleted this post as I made a mistake with the...

Deleted this post as I made a mistake with the time line.
Forum: Tech Log
7th Aug 2011, 22:11
Replies: 3,435
Views: 1,674,273
Posted By cwatters

I wonder if the reverse was also true?

I wonder if the reverse was also true?
Forum: Tech Log
6th Aug 2011, 19:25
Replies: 3,435
Views: 1,674,273
Posted By cwatters

That might be how the system is designed to work...

That might be how the system is designed to work but is it how a human "naturally" expects a system to work? Hasn't it been proven over the years that in an emergency we revert to how we expect...
Forum: Tech Log
3rd Aug 2011, 09:00
Replies: 3,435
Views: 1,674,273
Posted By cwatters

If they felt they were fast and descending...

If they felt they were fast and descending perhaps they thought this was a high speed stall warning? In which case relaxing the back stick but still mantaining some might make sense.
Forum: Tech Log
31st Jul 2011, 10:19
Replies: 3,435
Views: 1,674,273
Posted By cwatters

As I understand it the aircraft (if not the...

As I understand it the aircraft (if not the pilots) knew the AOA was too high. So perhaps changing the audible warning to announce the AOA would be benificial.

At the very least change it so that...
Forum: Tech Log
12th Jul 2011, 14:08
Replies: 3,435
Views: 1,674,273
Posted By cwatters

What speed does the "Low Speed Protection" kick...

What speed does the "Low Speed Protection" kick in?

Edit: Ah i see footnote 18

"If dual ADR failure then low speed stability is lost"
Forum: Tech Log
12th Jul 2011, 06:38
Replies: 3,435
Views: 1,674,273
Posted By cwatters

Thats the point, there isn't one so you don't get...

Thats the point, there isn't one so you don't get to learn how dangerous having one can be.
Forum: Tech Log
11th Jul 2011, 22:23
Replies: 3,435
Views: 1,674,273
Posted By cwatters

I agree with you but I wonder how many glider...

I agree with you but I wonder how many glider pilots would check the trim wheel position in the middle of recovering from a stall? Bet most would wait until they had recovered to S&L.
Forum: Tech Log
11th Jul 2011, 07:19
Replies: 3,435
Views: 1,674,273
Posted By cwatters

It's not clear that's the case.

It's not clear that's the case.
Forum: Tech Log
6th Jul 2011, 09:03
Replies: 3,435
Views: 1,674,273
Posted By cwatters

Can I check my understanding as I'm not a jet...

Can I check my understanding as I'm not a jet pilot..

Am I correct in thinking that the trim (auto or manual) has more control throw/authority than the side stick? In effect auto trim has changed...
Forum: Tech Log
18th Jun 2011, 19:18
Replies: 3,435
Views: 1,674,273
Posted By cwatters

Interesting comment. When down elevator is...

Interesting comment. When down elevator is applied what happens to the "vortex" drag that is "assisting it's lift"? Seems to me it would reduce.
Forum: Tech Log
8th Jun 2011, 07:36
Replies: 3,435
Views: 1,674,273
Posted By cwatters

I'm not a jet pilot or engineer but.. Has...

I'm not a jet pilot or engineer but..

Has the possibility of a fault with the PF stick been ruled out? Suppose that fault added a constant nose up. Presumably that would cause the THS trim to...
Forum: Tech Log
31st May 2011, 13:47
Replies: 3,435
Views: 1,674,273
Posted By cwatters

Does that work if you start in the stalled...

Does that work if you start in the stalled condition with high rate of descent and 40 degree AOA? Will it accelerate out of the stall at cruise throttle?
Forum: Tech Log
31st May 2011, 13:35
Replies: 3,435
Views: 1,674,273
Posted By cwatters

@ costamaia I meant later when they...

@ costamaia



I meant later when they still had a high rate of descent..



...although I admit it doesn't mention what they did with the throttles after that.
Forum: Tech Log
30th May 2011, 09:43
Replies: 3,435
Views: 1,674,273
Posted By cwatters

I agree. In a sailplane the nose usually pitches...

I agree. In a sailplane the nose usually pitches down on it's own when stalled - so you quickly get used to it pointing at the ground. If that doesn't happen in a jet I imagine some bravery is...
Forum: Tech Log
30th May 2011, 09:26
Replies: 3,435
Views: 1,674,273
Posted By cwatters

Am I right in thinking that -10,000 ft/min is...

Am I right in thinking that -10,000 ft/min is around 100kts down? In which case if their airspeed was <60kts a normal attitude would produce a very high AoA.

If so they may have a normal...
Forum: Tech Log
28th May 2011, 08:47
Replies: 3,435
Views: 1,674,273
Posted By cwatters

So PF doesn't think anything is working and...

So PF doesn't think anything is working and lowering the nose appeared to trigger a stall warning. How many people in that situation would continue to trust the stall warning system was working?
Forum: Tech Log
3rd May 2011, 15:11
Replies: 3,435
Views: 1,674,273
Posted By cwatters

Britfrog wrote: Why not? Can all other...

Britfrog wrote:



Why not? Can all other other aircraft survive unlimited turbulence and never need to divert around weather? I don't think so.
Forum: Tech Log
8th Apr 2011, 16:54
Replies: 3,435
Views: 1,674,273
Posted By cwatters

They didn't know they had heard them until about...

They didn't know they had heard them until about the middle of last year. Thales only made the discovery after writing new software to reprocess the data recorded during the first search. If I've...
Forum: Tech Log
6th Apr 2011, 08:16
Replies: 3,435
Views: 1,674,273
Posted By cwatters

Actually no. Noise is proportional to bandwidth...

Actually no. Noise is proportional to bandwidth so listening for any sound in a "wide spectrum" is exactly what you shouldn't do. If you know the frequency of the transmitter you should optimise your...
Showing results 1 to 22 of 22


 
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