Various types of seating are attached to the inside of a helicopter to be used in an upcoming crash test at the National Aeronautics and Space Administration Langley Research Center Landing and Impact Research Facility in Hampton, Va., June 18, 2013. Information learned from the center’s research has been used as baseline information to institute safety regulations in the military and civilian organizations. (U.S. Air Force photo by Airman 1st Class R. Alex Durbin/Released)