A bit more info from NAMupdater on another aviation forum.
the Meteor FR9 never had a true V-TOL capability its role at Rolls-Royce Hucknall is explained in this weblink
http://empedia.info/maps/28 - just click on the Meteor icon at the bottom of the screen.
It’s main role was ground effect trials to see where dust and debris ‘went’ as a result of the downward thrust of the engine in the vertical position – in the link there is digitised footage of these trials at Hucknall in the late 1950s.
The RB.108 was operated in flight and there are Log Book entries to show this – there might be longer article about VZ608 in a forthcoming edition of Jet’s Monthly!