Maj. Chris Lovegren operates the beyond line of sight system of a B-1B Lancer bomber. U.S. Air Force Maj. Chris Lovegren, a pilot with the 34th Bomb Squadron, operates the beyond line of sight system (BLOS) of a B-1B Lancer bomber during his preflight checklist at Ellsworth Air Force Base, S.D., on Nov. 23, 2009. The BLOS system is capable of providing a variety of information including high-resolution terrain mapping. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 448400-R-DDK13-891.jpg Photo Gallery