Last minute markings
U.S. Air Force Tech. Sgt. Sean McGrath, left, the 35th Operations Support Squadron deputy field manager, 1st Lt. Michael Duran, middle, the 35th OSS airfield management flight commander, and Dan Halliday, right, creator of Halliday technologies, ensure all materials are in place on the RT3 friction measurement device at Misawa Air Base, Japan, Dec. 7, 2017. Without the runway friction tester, the 35th OSS would be unable to get calculations of the friction on runways, which are essential to determine whether the pilots will be able to depart safely. (U.S. Air Force photo by Airman Xiomara M. Martinez)