Hi BIK, bit of a catch-all statement there, certainly can't hand fly Cat 2/3 in my current machine.
Cat2....must be automatic approach, at least 1 autopilot engaged, may be disengaged for landing, minimum 80ft.
Cat3A....must be automatic approach,at least 1 autopilot
engaged , landing must be automatically controlled.
Cat3B....must be automatic approach, 2 autopilots engaged,
automatic landing + rollout automatically controlled.
However I do realise that they CAN be HAND FLOWN given the right equipment e.g. HUD