JIMTX in post # 22 said ...
what position (L/R) the AoA sensor is in (vane has to move through 180deg when swapped from L to R or R to L positions).
Which to this SLF suggests that some sort of detent must be built in to assure
exactly 180 rotation. Could it be that the detent is set allow a
plus- minus 20 degree movement of AOA VANE ? And thus if not twisted past the detent, a relatively fixed error may be possible ?