WELDER'S WORLD U.S. Air Force Senior Airman Nathan Schroeder welds a crack on a blos tray on Ellsworth Air Force Base, S.D., Nov. 19, 2009. B-1B Lancer pilots use blos trays to carry laptops inside the aircraft, enabling air crew members to control the Sniper pod, an advanced targeting system, and enhance their situational awareness. Schroeder is assigned to the 28th Maintenance Squadron and is a metals technology journeyman. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 488257-X-STG82-312.jpg Photo Gallery