Some more images of a VC10...
........ taken from a smelly Hercules - urghhhhhhhhhhhh!
SilsoeSid,
What you have there is a VC10 K being followed by a C1K. Not sure whether the lead is a K3 or K4, but it certainly is a 'Super' VC10 with a longer fuselage than the C1K. Some Brize bod will be along to tell you exactly which airframes they are .....