Senior Airman Josh Serafin, 5th Aircraft Maintenance Squadron crew chief, communicates with the aircrew aboard a B-52H Stratofortress prior to launch at Minot Air Force Base, N.D., Jan. 26, 2017. Communication between the aircrew aboard the aircraft and the maintainers outside, is critical to safely launching a B-52. (U.S. Air Force photo/Senior Airman J.T. Armstrong)