Could we have a look inside S1, S2, P1, P3
I guess a lot of electronic components gathered closely together....
We know what is going in and what is coming out. (FDR traces in--> Yaw damp order + pedal order
and out --> Rudder position --> Yaw rate = Yaw damp order....
If the lateral accel. trace is coming from ADIRU(below cockpit floor) the trace of Ny accelerometers
is missing (Ny accelerometers located aft of bulkhead).
AMM text:
"if yaw alternate law, sideslip estimation is changed in Ny body lateral accelerometer."
If this is the trace shown on the lateral parameter page it doesn't look very well....(after alternate law is engaged)
AMM text:
The estimated sideslip is used as an input parameter for the lateral normal law
Not mentioned, if the estimated slideslip is also a input during alternate operation or only used for display on PFD?