Melissa Tate, left, deputy director of Aeropropulsion for Arnold Engineering Development Complex, and Lt. Col. Lane Haubelt, chief of the AeropropulsionTest Branch, speak about the Aeropropulsion Systems Test Facility with Secretary of the Air Force Barbara Barrett during her visit, June 18, 2020, to Arnold Air Force Base, Tenn. (U.S. Air Force photo by Jill Pickett)