Pilots from the 3d Airlift Squadron, Dover Air Force Base, Del., slowly fly their C-17 Globemaster III into position during an air refueling training mission Sept. 28, 2017. On this training mission, NASCAR orientation flight participants took turns observing air refueling operations by KC-135T Stratotankers from the 127th Wing, Selfridge Air National Guard Base, Mich. (U.S. Air Force photo by Roland Balik)