Thermal Image A thermal image of a KC-135 Stratotanker aircraft’s hydraulic spoiler bypass valve in the energized position is shown at MacDill Air Force Base, Fla., Feb. 27, 2019. Thermal imaging cameras are used to find faulty parts based on inconsistent heat signatures. SHARE IMAGE: Download Image: Full Size (0.12 MB) Tags: Air Force, coronavirus Photo By: Air Force Airman 1st Class Scott Warner VIRIN: 190227-F-XX111-1000C.JPG Photo Gallery