Strangely, there is an IWM photo online of a XG169 said to have been taken in 1974!
It reads:-
Object description
A Royal Air Force Hawker Hunter F6 aircraft, XG169 '31', of No 234 Squadron / 229 Operational Conversion Unit RAF, photographed in a steep dive, April 1974. No 229 OCU, which trained fighter pilots, was based at RAF Chivenor in Devon during 1951 - 1974.
© IWM CT 915