henry crun
Manual flight control reversion. Having had only one flight in a Swift Mk5 and a fading memory I cannot recall whether that Swift had manual reversion. The early Hunters certainly had that problem with the flight controls when re-engagaing powered control. The pucker factor was high when doing a re-engagement particularly if one made the attempt under flight conditions different to the dis-engagement. Whatever tried to re-engage would miss a detent and leave one with a very peculiar stick free position. Very disconcerting.
Never did try a landing with a mis-aligned FCS.
Did try the odd landing in a Valiant with FCS in manual. Control forces were at the extremes of one's strength.
The Vulcan was a challenge with a various combinations of its 8 control surfaces closed down and trailing. No reversion to manual available.
Surprisingly the Comet 2C with it's triplicated FCSs and spring feel could be tentatively controlled on one FCS with hydraulics only from a windmilling engine. Excessive control inputs would result in jack stalls causing one to consider a rapid re-engagement of an additional FCS.