Defense.gov News Photo 070821-F-6341K-007

U.S. Air Force Staff Sgt. Stephanie Smith adjusts the controls on a portable air conditioning unit used to cool the interior of KC-135 Stratotanker aircraft in the extreme desert heat of Nellis Air Force Base, Nev., during exercise Red Flag 07-3 on Aug. 21, 2007. Smith is a communications and navigations specialist with the 100th Air Refueling Wing out of Royal Air Force Mildenhall, England.