U.S. Air Force Staff Sgt. Mark Creel, Thunderbird 2 assistant dedicated crew chief, sprays down the tire on his jet during pre-flight inspections at the Royal Air Force Waddington International Air Show, United Kingdom, July 2, 2011. The Thunderbirds will perform in nine countries during their six-week European tour, fostering international goodwill and representing America's airmen around the globe.