D-RAPCON demo
                        
                        
                        U.S. Air Force Master Sgt. Herbert Hayes Jr., an air traffic controller from the 54th Combat Communication Squadron, tests a  new deployable radar approach control system, or D-RAPCON, design during a human factors assessment at a facility in Marlborough, Mass., Sept. 17. D-RAPCON, a Life Cycle Management Center-owned program, works to deliver air traffic control systems that can be deployed worldwide in support of armed forces and humanitarian operations. (Courtesy photo)