Airbus approach capability
Partly. Autopilot availability and other redundancy considerations are used to decide landing capability - only one of which is Rad Alt.
Others include Hydraulics, Yaw damper, FBW computers and NWS just to name a few.
There is a whole list of systems required for CAT 2, CAT 3A/B in the QRH.
Others include Hydraulics, Yaw damper, FBW computers and NWS just to name a few.
There is a whole list of systems required for CAT 2, CAT 3A/B in the QRH.