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15th Mar 2019, 21:40
Replies: 304
Views: 305,669
Posted By Speed of Sound

At some point in the design phase of the MCAS,...

At some point in the design phase of the MCAS, the question would have been asked "How many Alpha vanes do we want to feed the active FCC?"

Three would be the best use of redundancy. The problem...
15th Mar 2019, 13:46
Replies: 304
Views: 305,669
Posted By Speed of Sound

Not sure if this has already been mentioned but...

Not sure if this has already been mentioned but the New York Times is reporting that the new 'evidence found at the crash site' is the horizontal stabilser jackscrew mechanism in the 'fully' nose...
14th Mar 2019, 22:29
Replies: 304
Views: 305,669
Posted By Speed of Sound

Correct me if I'm wrong but wouldn't AoA sensors...

Correct me if I'm wrong but wouldn't AoA sensors mounted on opposite sides of a fuselage output different values under certain conditions of bank and yaw?
13th Mar 2019, 23:54
Replies: 2,250
Views: 5,727,511
Posted By Speed of Sound

Nobody has drawn any conclusion from the ET-302...

Nobody has drawn any conclusion from the ET-302 crash.

However the Lion Air crash and investigation has revealed not only a failed part but also a possibility of a serious design problem with the...
13th Mar 2019, 19:57
Replies: 304
Views: 305,669
Posted By Speed of Sound

Possibly, and this time the Europe-US dynamic...

Possibly, and this time the Europe-US dynamic will be across the Atlantic in the other direction.

A stitch up between Boeing and the FAA may not be enough for other regulators around the world. It...
13th Mar 2019, 19:46
Replies: 2,250
Views: 5,727,511
Posted By Speed of Sound

The 787 was grounded for three months in 2013. I...

The 787 was grounded for three months in 2013. I assume they will be checked at the same time as the software patch and AoA sensor re-jig is done.
13th Mar 2019, 18:51
Replies: 2,250
Views: 5,727,511
Posted By Speed of Sound

Am I right in thinking that EASA had concerns...

Am I right in thinking that EASA had concerns about the certification of the MCAS system but in the end decided to take the lead from the FAA?

If that is true and it turns out that MCAS was also...
13th Mar 2019, 14:55
Replies: 2,250
Views: 5,727,511
Posted By Speed of Sound

It is not unreasonable to believe that given a...

It is not unreasonable to believe that given a choice, the Ethiopian authorities would rather an outcome that showed a fault with a foreign made aircraft than a problem with their own carrier’s...
12th Mar 2019, 15:57
Replies: 2,250
Views: 5,727,511
Posted By Speed of Sound

THOUGHTS ON A POSSIBLE FIX On the subject of...

THOUGHTS ON A POSSIBLE FIX

On the subject of a 'software fix', as well as possibly feeding data from both AoA sensors to the microprocessor concurrently rather than consecutively, would adding...
12th Mar 2019, 00:35
Replies: 2,250
Views: 5,727,511
Posted By Speed of Sound

FAA says Boeing 737 Max 8 is airworthy...

FAA says Boeing 737 Max 8 is airworthy http://www.bbc.co.uk/news/world-africa-47533052

This may well come back to bite them!
11th Mar 2019, 15:52
Replies: 2,250
Views: 5,727,511
Posted By Speed of Sound

Journalists tend not to involve themselves in...

Journalists tend not to involve themselves in discussions but prefer to just lift chunks of it, often out of context, and don't even have to register as this is a public site.
11th Mar 2019, 15:06
Replies: 2,250
Views: 5,727,511
Posted By Speed of Sound

Utter nonsense! Some of the best...

Utter nonsense!

Some of the best contributions I have seen on this forum in nearly 20 years, have come from psychologists, educationalists, electronics engineers, geographers, training...
Forum: Rotorheads
6th Dec 2018, 21:22
Replies: 1,173
Views: 494,266
Posted By Speed of Sound

Figure 5 in the SB seems to show a square-section...

Figure 5 in the SB seems to show a square-section end to the actuator rod which could be used to prevent the rod from rotating while the nut is torqued.
Forum: Rotorheads
6th Dec 2018, 14:23
Replies: 1,173
Views: 494,266
Posted By Speed of Sound

The rent-an-idiot David Learmount has just been...

The rent-an-idiot David Learmount has just been on the BBC News saying that the report reveals that the control cable between the pedals and the tail rotor had snapped!

Really?

Why would...
2nd Nov 2018, 17:11
Replies: 2,098
Views: 1,037,749
Posted By Speed of Sound

Presumably because they were kept immersed in...

Presumably because they were kept immersed in water until they were opened.

As regards de soldering the memory chips or even breaking open the plastic case, introducing heat or static can risk...
2nd Nov 2018, 15:54
Replies: 2,098
Views: 1,037,749
Posted By Speed of Sound

The reason for keeping recorders in clean fresh...

The reason for keeping recorders in clean fresh water when recovered from salt water, is that if the case or seals have been damaged and salt water reaches any of the electrical contacts, they will...
8th Dec 2015, 17:35
Replies: 14
Views: 10,289
Posted By Speed of Sound

Don't let Michael O'Leary see that! ;)

Don't let Michael O'Leary see that! ;)
8th Dec 2015, 11:35
Replies: 3,924
Views: 3,760,280
Posted By Speed of Sound

I think better training inevitably means more...

I think better training inevitably means more training.

We can talk about the pros & cons of automation and side sticks vs control columns until the cows come home. But the one thing above all...
8th Dec 2015, 09:45
Replies: 75
Views: 25,320
Posted By Speed of Sound

I was boarding a flight from Sydney to Los...

I was boarding a flight from Sydney to Los Angeles a few years ago, when a fellow traveller stowing her overhead luggage, announced to all around that she had once survived a fatal plane crash...
30th Nov 2015, 16:30
Replies: 35
Views: 13,271
Posted By Speed of Sound

I suspect any defence team will be poring through...

I suspect any defence team will be poring through footage of the evacuation to see if anyone exiting with hand luggage are among the complainants.

It would put a bit of a dampener on your claim of...
25th Mar 2015, 17:10
Replies: 3,530
Views: 4,891,739
Posted By Speed of Sound

He actually said 'sounds and voices' which is no...

He actually said 'sounds and voices' which is no surprise.

His reason for giving no further information was that they were still syncing the recording to the flight in question.
25th Mar 2015, 16:29
Replies: 3,530
Views: 4,891,739
Posted By Speed of Sound

BEA spokesman getting very jittery in response to...

BEA spokesman getting very jittery in response to questions about the CVR.

He has admitted that it has useful information (suggesting it has been listened to) but won't say what was heard!
25th Mar 2015, 16:21
Replies: 3,530
Views: 4,891,739
Posted By Speed of Sound

BEA spokesman has just categorically confirmed...

BEA spokesman has just categorically confirmed that they have NOT found the FDR.
24th Mar 2015, 17:36
Replies: 3,530
Views: 4,891,739
Posted By Speed of Sound

Apart from the fact that if they had been able to...

Apart from the fact that if they had been able to descend to sea level, one or both pilots may have regained consciousness (if decompression was indeed the cause) enough to establish level flight or...
24th Mar 2015, 16:44
Replies: 3,530
Views: 4,891,739
Posted By Speed of Sound

I agree, which is why I suggested 'creeping...

I agree, which is why I suggested 'creeping hypoxia' due to failure to pressurise successfully. I do however find it difficult to understand how at least one of the pilots wouldn't have managed to...
Showing results 1 to 25 of 439
 


 
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