Capt. Patrick Mullen exits a B-1B Lancer during an engine-running crew change Oct. 27, 2010. Captain Mullen is a 28th Bomb Wing pilot at Ellsworth Air Force Base, S.D. Airmen from the 28th BW are participating in a joint-service exercise at Barksdale AFB, La., Nov. 5 through 14. (U.S. Air Force photo/Staff Sgt. Marc I. Lane)