LANGLEY AIR FORCE BASE, Va. -- Staff Sgt. Jonathan Buchanan, 1st Operational Support Squadron aircrew flight equipment craftsmen, determines lengths of material for F-22A Raptor tail covers here June 24. The covers prevent overspray from getting on the skin of the aircraft and hindering the Raptors’ stealth capabilities, as well as, helping in the application of low observable materials to the aircraft. (U.S. Air Force photo/Airman 1st Class Jonathan Koob)