ANG unit to test prototype
Tech. Sgt. John Kerschenheiter, an electrician with the 191st Maintenance Squadron connects wiring for a new antennae to the flight controls of a KC-135 Stratotanker at Selfridge Air National Guard Base, Mich., Jan. 30, 2013. The KC-135, assigned to the 127th Air Refueling Group of the Michigan Air National Guard, was being outfitted with the additional antennae to allow it to serve as a platform for testing a prototype of a new aircraft defense system. (U.S. Air Force photo by Brittani Baisden)