Crew chiefs perform a pre-flight check with the crew of a B-1B Lancer bomber. Two crew chiefs perform a pre-flight operations check with the crew of a U.S. Air Force B-1B Lancer bomber at an air base in the Persian Gulf region on Dec. 10, 1998. Lancer bombers, deployed to the region from Dyess Air Force Base, Texas, and Ellsworth Air Force Base, S.D., are multi-role, long range, heavy bombers. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 741992-U-FCR17-210.jpg Photo Gallery