Four Saudi Arabian Air Force F-15SA (Saudi Advanced) Eagles arrived at RAF Lakenheath on December 10, 2016.
The aircraft are the first four to be delivered as part of a one hundred and fifty four aircraft order placed in 2010. The order is made up of eighty four new built F-15SAs and seventy upgrades of existing Saudi F-15s.
The aircraft that arrived at Lakenheath are serials 93-0857 (Saudi serial 5506), 93-0899 (Saudi serial 9223), 12-1006 and 12-1010 - two upgrades and two new builds. They arrived using callsigns "Retro63-66".
All the F-15s wore US serials as is standard for delivery flights.