Hydraulic Specialists
Airman 1st Class Jeremiah Palmer, 28th Aircraft Maintenance Squadron hydraulic technician, installs a pre-cooler blower on a B-1 bomber during routine maintenance at Ellsworth Air Force Base, S.D., May 8, 2013. Aircraft hydraulic system specialists are responsible for everything that deals with hydraulic and pneumatic systems, including landing gear, brakes, flight controls, weapons and cargo door systems. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)