Mike Wise, Air Force Engineering and Technical Services propulsion specialist and crew chief, showcases the guard shack he repurposed at Seymour Johnson Air Force Base, North Carolina, May 6, 2021. The shack was designed for use on the trim pad during high-powered engine run testing so that Airmen are removed from the elements, enabling them to run tests and train. (U.S. Air Force photo by Airman 1st Class Kimberly Barrera)