For the guys with the graphs:
The estimated sideslip (elaborated in FCPC) is NOT used in ALT2(& DIRECT) and replaced by Ny rear accelerometer.
The FCPCs are located below cockpitfloor and the Ny rear accelerometer in the tail compartment.
@HN39:
Don't know the equation but it is Ny acceleration corrected by Rudder deflection and roll and yaw rate. (Inertial data)
Seems to be ADR DATA is supplied also:
