Cessna E530
I see on FR24 that a Cessna E530 departed Boscombe Down earlier and is currently off the Cornwall coast at about 3000ft, was seen on FR24 a couple of times last week as well, mostly over Dartmoor for several hours between 2000 and 14000 ft, usually stopping at Culdrose around lunchtime, presumably for re-fueling and a spot of lunch! Presume this is on evaluation trials, but not seen anything published about it.