F-22A 411th Flight Test Squadron

"The 411th Flight Test Squadron is a United States Air Force squadron assigned to the 412th Operations Group of Air Force Materiel Command, stationed at Edwards Air Force Base, California. It conducted the Advanced Tactical Fighter program flyoff competition between the Lockheed YF-22 and Northrop YF-23 prototypes. Following the completion of the competition, the squadron has conducted testing of the Lockheed Martin F-22."