Nellis holds 2011 Aviation Nation
Father and son watch the sky as the Patriots Demonstration Squadron, fly overhead during the 2011 Aviation Nation Open House Nov. 12, at Nellis Air Force Base, Nev. Aviation Nation celebrates 70 years of airpower in Las Vegas and the Air Force's accomplishments in air, space and cyberspace. (U.S. Air Force photo by Tech. Sgt. Bob Sommer/Released)