FUELING A FIRE U.S. Air Force Staff Sgt. Kristian Voth uses a propane lighter to fuel a training fire on Ellsworth Air Force Base, S.D., May 13, 2008. Voth is a firefighter crew chief assigned to the 114th Fighter Wing, 114th Civil Engineer Squadron. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 179117-O-NXV05-050.jpg Photo Gallery