A Radar Electronic Warfare station from the late 1970’s sits in the avionics workstation at Ellsworth Air Force Base, S.D., Dec. 6, 2016. Though the old REW systems take upwards of a week to fix a single line replaceable unit, the wing will be receiving an Advanced Radar Electronic Warfare Test Station upgrade that will lower runtimes to mere hours. (U.S. Air Force photo by Airman 1st Class Donald C. Knechtel)