Originally Posted by
GordonR_Cape
Thanks for the link. It gets worse:
Quote extract...
But in the last several weeks, Boeing has been saying something different. Mr. Tajer said the company recently told American pilots that the system would not alert pilots about any sensor disagreement until the aircraft is 400 feet above the ground.
Unquote
My emphasis added. This is a critical point that was touched on previously. It is impossible to get a reliable AOA value until there is significant forward airspeed. Plus it takes time to compare the two values, and trigger the AOA disagree warning. By then the aircraft is airborne. Its a bit too late. If it was fitted and worked, which it didn't.
Im surprised this didn't attract more comments, perhaps it got missed in the flurry of recent posts? Just wondered how much of a "wow" comment it is, and also whether the 400 feet limit would presumably also apply to MCAS as it would suggest that an input check is performed before the AOA signal is allowed to be used? There was talk way way back about a height limit on MCAS intervention but don't think it ever got resolved.
Alchad