NORTH SEA – A Royal Air Force Eurofighter Typhoon flies off the tail of an RAF L-1011 TriStar aerial refueling tanker from 216 Squadron, RAF Brize Norton, during a formation flight Aug. 16, 2012. The formation included the TriStar and a U.S. Air Force KC-135 from the 100th Air Refueling Wing, RAF Mildenhall, and was flown to better familiarize NATO tanker aircrews with their partner nations’ air refueling procedures.