The BAe146-300 G-LUXE is indeed based at Cranfield. It has been converted into an atmospheric sampling aircraft as part of the FAAM (Facility for Airborne Atmospheric Measurement) project.
Britannia did put a 767-200 into Cranfield. Some of their cadet pilots were training with Trent Air Services (remember them?) and the 767 was there to celebrate their graduation. It flew them to Shannon I seem to recall.
We get all kinds of aircraft into Cranfield. It is one of the few places where the runway can be flooded for water ingestion trials. I saw the Fokker 100 and Dornier 328 when they visited as part of their certification programme. We also used to get quite a few military visitors doing ILS runs, usually Dominies and C130s and, on one memorable occasion, a VC-10. These days the visitors seem to be confined to Pumas and Chinooks. If anyone with influence in the MoD is reading this, MORE PLEASE!!
Regards,
Simtech
(Located directly under the approach to EGTC Rwy 22, 5 miles out)