DC-8 (?) Operating out of RAF Lyneham??

Living near RAF Lyneham in Wiltshire, I have seen what appears to be a DC-8 using the base for the past couple of weeks.

I know the French AF used to operate a DC-8 on SIGINT duties – do they still do so??

Anyone know who’s DC-8 it is – and what sub-type ? – 62, 73 etc ?

Just curious…..

Ken