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Forum: Tech Log

30th May 2011, 14:06

Replies: 3,435

AF447 wreckage found

Views: 1,673,041

Posted By maynardGkeynes

pitch + power

Using the standard practice of pitch + power to maintain safe flight does not work if the aircraft is ALREADY stalled, which was the case here.

Forum: Tech Log

29th May 2011, 16:53

Replies: 3,435

AF447 wreckage found

Views: 1,673,041

Posted By maynardGkeynes

It was working properly, which is part of the...

It was working properly, which is part of the problem. The captain was not in the cockpit at the time of the first two stall warnings, and only heard the third. One must question, therefore, the...

Forum: Tech Log

29th May 2011, 16:08

Replies: 3,435

AF447 wreckage found

Views: 1,673,041

Posted By maynardGkeynes

@ fireflybob

@ fireflybob

You are correct: attitude, derived from a combination of rate and attitude gyros should still have been reliable. At the same time, if the attitude of the aircraft is nominal...

Forum: Tech Log

29th May 2011, 13:59

Replies: 3,435

AF447 wreckage found

Views: 1,673,041

Posted By maynardGkeynes

@Flyerbob As I noted earlier, the core...

@Flyerbob

As I noted earlier, the core difficulty faced by the crew was that the standard practice of using pitch + power to maintain safe flight without air data didn't seem to be working, and...

Forum: Tech Log

29th May 2011, 06:10

Replies: 3,435

AF447 wreckage found

Views: 1,673,041

Posted By maynardGkeynes

Mac, once they stalled, with no instrumentation...

Mac, once they stalled, with no instrumentation or VH, this was for all practical purposes unrecoverable in an Airbus due to the FBW.

Forum: Tech Log

29th May 2011, 04:23

Replies: 3,435

AF447 wreckage found

Views: 1,673,041

Posted By maynardGkeynes

Among the many differences between flying a small...

Among the many differences between flying a small airplane and a big airliner, especially one with the Airbus's "fly by wire" control system, is that in some circumstances the right response in an...

Forum: Tech Log

29th May 2011, 03:22

Replies: 3,435

AF447 wreckage found

Views: 1,673,041

Posted By maynardGkeynes

From Fallows Atlantic Mag

Reading the BEA report, there's no indication that the crew lost all instruments, simply all instruments dependent on the pitot-static system. Attitude, derived from a combination of rate and...

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