A U.S. Marine Corps MV-22 Osprey aircraft sits on the flight line.
A U.S. Marine Corps MV-22 Osprey aircraft sits on the flight line at Marine Corps Air Station Yuma, Ariz., on Oct. 21, 2010. The aircraft was flown in support of Weapons and Tactics Instructor's Course 1-11 hosted by Marine Aviation Weapons and Tactics Squadron One.