Jim Wilkins wrote:
"Keith W" wrote in message
...
Jim Wilkins wrote:
"Mr. B1ack" wrote in message
...
Not interested in burning to death over the Pacific ....
Better to fall into the South Atlantic because the Airbust didn't
inform the pilots that it had stalled.
Actually it did, they simply chose to disregard the stall warning
that sounded continuously for 54 seconds and the stick shaker.
Keith
It sounded for 54 seconds, then it stopped a little after 2h 11m 42s
when they were at 35,000 feet, 40 degrees pitch and falling at 10,000
feet/minute. See pages 22 & 23.
http://www.bea.aero/en/enquetes/flig...t.final.en.php
At 2h 12m ~15s the Pilot Flying made a pitch-down input that brought
their forward speed above the stall warning's lower limit of 60 Kts
and it sounded again, confusing them.
Page 44 of the final report:
" 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."
My real point is to remind Bill Black that he lives in a glass house
and shouldn't throw stones at Boeing.
jsw
The real point is that the aircraft clearly
1) Indicated that it had reverted to direct law (manual input)
2) Sounded the stall warning
3) Showed that the aircraft was falling at a high angle of attack
and low speed
The pilot flying seems to have been fixated on keeping the
wings level and disregarded the angle of attack which at
2 minutes 12 seconds was 40 degrees ! During the entire
crisis it was never less than 35 degrees.
Keith