Quote:
OK465
In practice, in ALT LAW, if the THS is somehow stopped at any position, when further movement would be commanded, the FCPC treats this as a jammed stab and will only exercise about 1/2 of the remaining elevator movement automatically, leaving the pilot about 1/2 of the elevator movement for manual control.
That seems counter intuitive. Do you mean other than a manual input to the Trim Wheel?
MM43:
Whether you 'hold' the trim wheel or 'fail' the system internally, if you then change airspeed, the ECAM message concerning a THS 'jam' will be displayed when the elevator reaches about half travel and that's the limit to which the FCS will take the elevator.
This gives the pilot both manual nose up and manual nose down elevator authority thru the SS, whereas an elevator at the actual travel limit provides for nose authority in only one direction.
This actually seems intuitive to me.
