Airborne Control for your UCAV
Maybe the light twin is the GCS (Ground Station - which is actually airborne!) for your RAF's MQ-9, which I understand uses Ku Satellite tech link to fly from a remote location. If your GCS was inside an aircraft at (say) 15000, and your Reaper UCAV was at (say) 15000 also, you would have a Line of Sight 'Tether' over the entire AOR, and therefore you would not need the Ku at all, nor its associated infrastructure, .....or is this dreaming.