This Alaskan based C-17 is making a very rare visit to the UK, the crew were clearly not familiar with Mildenhall and flew a extremely high visual approach onto runway 29.
'Tarnish 21' in at RAF Mildenhall for a few visual circuits on a quiet friday afternoon. 'Tarnish' is a BAe Systems callsign so the aircraft is on a post overhaul test flight out of nearby RAF Marham.