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Forum: Tech Log

18th Nov 2010, 13:27

Replies: 1,524

Airbus crash/training flight

Views: 741,955

Posted By Mad (Flt) Scientist

Actually, you're reacting to a TRANSLATION of the...

Actually, you're reacting to a TRANSLATION of the official report, which of course is in French. That states...

That last word is the one whose translation has you so riled. A transliteration...

Forum: Tech Log

6th Nov 2010, 22:03

Replies: 1,524

Airbus crash/training flight

Views: 741,955

Posted By Mad (Flt) Scientist

Two parts to that: Having a different system...

Two parts to that:

Having a different system configuration for a test certainly is possible, but usually would be for the duration of the flight. We do something similar to activate certain...

Forum: Tech Log

5th Nov 2010, 19:54

Replies: 1,524

Airbus crash/training flight

Views: 741,955

Posted By Mad (Flt) Scientist

@ bearfoil Perhaps overwhelmed is an emotive...

@ bearfoil

Perhaps overwhelmed is an emotive term, but the fact remains that the messaging and alerting system is designed with very definite constraints on what it can post and when, because...

Forum: Tech Log

5th Nov 2010, 16:39

Replies: 1,524

Airbus crash/training flight

Views: 741,955

Posted By Mad (Flt) Scientist

In circumstances where a single discrepant probe...

In circumstances where a single discrepant probe has been discarded and the system now relies on two, I doubt such a message helps. The aircraft I am most familiar with only has two AOA probes to...

Forum: Tech Log

5th Nov 2010, 14:55

Replies: 1,524

Airbus crash/training flight

Views: 741,955

Posted By Mad (Flt) Scientist

Simply put, probability. The likelihood of...

Simply put, probability.

The likelihood of circumstances requiring the protection function to work is less than P=1. Therefore some failure rate of the protection system is acceptable. But for...

Forum: Tech Log

1st Nov 2010, 23:50

Replies: 1,524

Airbus crash/training flight

Views: 741,955

Posted By Mad (Flt) Scientist

That may be true. But airliner annunciations are...

That may be true. But airliner annunciations are not, in general, designed for test flights; they are designed for normal operations, and to minimize workload by masking messages which are not...

Forum: Tech Log

26th Oct 2010, 00:17

Replies: 1,524

Airbus crash/training flight

Views: 741,955

Posted By Mad (Flt) Scientist

@BAOC - true, the key then is to attempt to...

@BAOC - true, the key then is to attempt to prevent that fully separated wing stall from occurring. Getting part of the wing to stall, while keeping other bits flying, in a fashion that both warns...

Forum: Tech Log

21st Oct 2010, 02:21

Replies: 1,524

Airbus crash/training flight

Views: 741,955

Posted By Mad (Flt) Scientist

If a type has been demonstrated to have...

If a type has been demonstrated to have acceptable stall recovery techniques when trimmed for initial speeds X through Y prior to slow down for a stall, but either not demonstrated OR demonstrated to...

Forum: Tech Log

4th Mar 2009, 22:10

Replies: 1,524

Airbus crash/training flight

Views: 741,955

Posted By Mad (Flt) Scientist

Actually, since it's stated to be CAS and is (I...

Actually, since it's stated to be CAS and is (I assume) the ADC output/display input speed (it's most likely the FDR is picking up the ADC output) I'd consider the most likely interpretation of the...

Forum: Tech Log

2nd Mar 2009, 11:50

Replies: 1,524

Airbus crash/training flight

Views: 741,955

Posted By Mad (Flt) Scientist

Additionally, since the data is CAS and...

Additionally, since the data is CAS and downstream of processing by the ADCs, it is possible [speculation] that the data are erroneous due to inappropriate corrections being applied/extrapolated...

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