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Old January 29th 13, 11:31 PM posted to rec.aviation.piloting,rec.crafts.metalworking,rec.aviation.military,talk.politics.misc,alt.society.labor-unions
Jim Wilkins[_2_]
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Posts: 52
Default Is the 787 a failure ?

"Jim Wilkins" wrote in message
...
wrote in message
... All the warnings
were there except for the indicators on the instrument panel.


All the warnings were NOT there, and the ones they had were
misleading. The stall indicator shut off below a minimum airspeed
and came on when they correctly put the nose down and gained speed.


I finally found it on page 44 of the main body of the BEA inquest:
"............If the CAS measurements for
the three ADR are lower than 60 kt, the angle of attack values of the
three ADR are
invalid and the stall warning is then inoperative. This results from a
logic stating that
the airflow must be sufficient to ensure a valid measurement by the
angle of attack
sensors, especially to prevent spurious warnings."

The stall warning and pitch attitude graphs are on page 6 of appendix
3.

jsw