Airman Dylan Johnson, a crew chief with the 446th Aircraft Maintenance Squadron, blows warm air into his hands Jan. 3, a day with a low of 19 degrees Farenheit, on McChord Field, Wash. Maintainers like Johnson have to find creative ways to stay warm in the winter months while working out on the flightline. (U.S. Air Force Photo/Staff Sgt. Rachael Garneau)