An F-16 Fighting Falcon from Air Combat Command's Viper East demonstration team sits on the flight line as the sun sets over Davis-Monthan AFB, Ariz., March 4, 2011.
An F-16 Fighting Falcon from Air Combat Command's Viper East demonstration team sits on the flight line as the sun sets over Davis-Monthan AFB, Ariz., March 4, 2011.