Edwards Air Force Base Edwards Air Force Base Edwards Air Force Base (AFB) is a United States Air Force installation located in Kern County in southern California, about northeast of Lancaster and east of Rosamond. It is the home of the Air Force Test Center, Air Force Test Pilot School, and NASA's Armstrong Flight Research Center. It is the Air Force Materiel Command center for conducting and supporting research and development of flight, as well as testing and evaluating aerospace systems from concept to combat. It also hosts many test activities conducted by America's commercial aerospace industry. Previously known as Muroc Air Force Base,
Ellsworth Air Force Base Ellsworth Air Force Base Ellsworth Air Force Base (AFB) is a United States Air Force base located about northeast of Rapid City, South Dakota, just north of the town of Box Elder. The host unit at Ellsworth is the 28th Bomb Wing (28 BW) assigned to the Global Strike Command's Eighth Air Force. The 28 BW is one of the Air Force's two B-1B Lancer wings (the other is the 7th Bomb Wing at Dyess AFB, Texas). As of 2017, the 28th Bomb Wing is commanded by Colonel John Edwards; its Command Chief Master Sergeant is Chief Master Sergeant Adam