Fluid mechanics maintain pressure, ensure mission safety
U.S. Air Force Airman 1st Class Christopher Beltran, 18th Component Maintenance Squadron hydraulics apprentice, checks the measurements of an F-15 Eagle aircraft cylinder barrel on Kadena Air Base, Japan, Aug. 6, 2013. The 18th CMS provides maintenance on electronics for propulsion, avionics and airframe accessory sub-systems for all assigned aircraft on Kadena and maintains the only four-bay engine test facility in Pacific Air Forces. (U.S. Air Force photo by Airman 1st Class Justin Veazie/Released)