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Forum: Tech Log

12th Aug 2011, 17:16

Replies: 1,998

AF 447 Thread No. 5

Views: 510,421

Posted By sensor_validation

Lots of info on AoA sensors and processing for...

Lots of info on AoA sensors and processing for the Perpignan A320 in the BEA report, assume similar for the A330

for example

Forum: Tech Log

12th Aug 2011, 08:16

Replies: 1,998

AF 447 Thread No. 5

Views: 510,421

Posted By sensor_validation

It's not as simple as that - what AoA inst were...

It's not as simple as that - what AoA inst were involved in the Perpignan crash?

Ans:

Thales make a lot of great kit and and its used extensively throughout many aircraft flight control...

Forum: Tech Log

11th Aug 2011, 23:29

Replies: 1,998

AF 447 Thread No. 5

Views: 510,421

Posted By sensor_validation

Back to old obsession:- what exactly was...

Back to old obsession:- what exactly was happening just before the incident started - were the controls acting on bad data? I think its possible but only for a few seconds before the air data...

Forum: Tech Log

8th Aug 2011, 23:34

Replies: 1,998

AF 447 Thread No. 5

Views: 510,421

Posted By sensor_validation

Has it been confirmed what AoA sensors were...

Has it been confirmed what AoA sensors were fitted?

Pretty likely the Thales C16291AA given the choice of Pitot tube, if so one could have been suffering an extreme variation of the known fault at...

Forum: Tech Log

29th Jul 2011, 22:45

Replies: 1,998

AF 447 Thread No. 5

Views: 510,421

Posted By sensor_validation

p110 - the 'TEMPERATURE STATIQUE' is also clearly...

p110 - the 'TEMPERATURE STATIQUE' is also clearly affected by ice at same time as the speeds - temp rises to 0 as ice melting - so what about the super-cooled ice theory again - and could it have...

Forum: Tech Log

29th Jul 2011, 14:57

Replies: 1,998

AF 447 Thread No. 5

Views: 510,421

Posted By sensor_validation

What about this document? ...

What about this document?

http://www.bea.aero/docspa/2009/f-cp090601e3/pdf/f-cp090601e3.pdf

Forum: Tech Log

29th Jul 2011, 11:45

Replies: 1,998

AF 447 Thread No. 5

Views: 510,421

Posted By sensor_validation

From the recommendations re image recording of...

From the recommendations re image recording of the instrument displays:-

Are they suggesting a possible explanation is that the displays were not showing the same information as that recorded?

Forum: Tech Log

26th Jul 2011, 19:13

Replies: 1,998

AF 447 Thread No. 5

Views: 510,421

Posted By sensor_validation

Pitch up of course, but what was the thrust...

Pitch up of course, but what was the thrust setting before increase - 90+%? So the converse, throttling back the engines to flight-idle, which was tried later should have a more dramatic effect in...

Forum: Tech Log

26th Jul 2011, 10:52

Replies: 1,998

AF 447 Thread No. 5

Views: 510,421

Posted By sensor_validation

You need to keep your reference axes the same,...

You need to keep your reference axes the same, moving at the same constant initial velocity then there is no change in Kinetic energy - but OK "v" is no longer airspeed, if windspeed changes.
...

Forum: Tech Log

25th Jul 2011, 12:21

Replies: 1,998

AF 447 Thread No. 5

Views: 510,421

Posted By sensor_validation

@Dutch M I politely suggest you go a read...

@Dutch M

I politely suggest you go a read the Wikipedia article on Kinetic Energy. It is correct to use the airmass as reference and airspeed to calculate the KE relative to the axes (its not an...

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