I saw an aircraft in one of the old hangers opposite the Post Office Depot.
It looks like a large twin Turboprop, (I did consider the HS748/YS11/Andover). I also thought of the old Gulfstream 1, but the angle of the tailplane leading edge is wrong.
The leading edge of the tailplane is almost vertical, and the plane is white.
I did try a picture but the quality was not good.
It seems to be under maintenance.
Any ideas appreciated.