U.S. Air Force Tech. Sgt. Gordon King, 136th Maintenance Squadron, Guidance and Control shop, Texas Air National Guard, bench checks at TTU-205 test set to ensure accuracy during operational checks on critical aircraft components at Naval Air Station Fort Worth Joint Reserve Base, Texas, June 21, 2014. King will use the TTU-205 to test, certify, calibrate, and troubleshoot aircraft pitot-static systems or associated pneumatic flight control systems after the bench check is complete. (Air National Guard photos by Master Sgt. Charles Hatton/Released)