ZD321
Interesting to see 321 in 'modern' warpaint, I haven't seen it since in original green livery.
This aircraft was used for some development work at Dunsfold; a clown in the hangar tried to get it nick-named 'Dusty Bin', apparently after the appalling 'Countdown 321' TV programme.
We in Photographic would have given our eye teeth for the digital cameras available off the shelf now...