Ah, I noticed one of those Clean KC-46s this heading down through the northern counties this morning!
Cessna Corvalis droned over yesterday afternoon at cor blimey nose bleed altitude and behind the trees on the common. Don't think I've ever seen one or indeed a Columbia 300/350/400 unless there was one or more at Oshkosh 2001 - though I didn't peruse the stands all that much, preferring the serried ranks of warbirds and vintage types! Was one based at Biggin which carefully eluded me...