Staff Sgt. Miles Warwick, 10th Flight Test Squadron aircrew flight equipment technician, inspects an oxygen mask breathing hose July 25, 2018, at Tinker Air Force Base, Okla. Warwick is a traditional reservist who has been with the 10th FLTS for about two years. Prior to that, he spent five years in the active-duty Air Force as an aviation resource manager. (U.S. Air Force photo by Jamal D. Sutter)