Kevin Gravitte, Red Horse Racing number 13 tire carrier and tire specialist, and Staff Sgt. William Harrington, 436th Force Support Squadron food service supervisor, work together to check the pressure of number 13's truck tires May 13, 2011, at Dover International Speedway, Del. These tires were taken off at the first pit-stop of the Lucas Oil 200. (U.S. Air Force Photo/Airman 1st Class Jacob Morgan)