An F-22A Raptor and a World War II-era P-51 Mustang fly over Tucson, Ariz., Sunday, March 5, 2006, during the 2006 Heritage Conference. The conference combines different U.S. aircraft from more than 60 years of aviation history to ensure certification in performing air shows worldwide. (U.S. Air Force photo/Airman 1st Class Veronica Pierce)
Posted: 03/01/2006