Originally Posted by
NSEU
Wouldn't the accelerative forces apply to the vane and the counter balance about the pivot point? So possibly no rotation due to equal forces up/down around the pivot point. I also recall the vanes stay roughly where you put them. They feel fluid-damped.
Yes.
That is what happens when everything is working correctly.
The suggestion is that the observed changes to the AoA signal recorded by the FDR can be explained if it is assumed that the vane has fallen off thereby unbalancing the system and making it susceptible to AoA signal changes with changing Vertical Acceleration (g).