160912-N-LV331-002 PATUXENT RIVER, Md. (Sept. 12, 2016) An EA-18G Growler, assigned to the Salty Dogs of Air Test and Evaluation Squadron (VX) 23, taxies to the runway before a test flight using 100 percent alternative jet fuel with Secretary of the Navy Ray Mabus as a passenger. The flight is part of research and development conducted by Naval Air Systems Command (NAVAIR) at Naval Air Station Patuxent River. (U.S. Navy photo by Mass Communication Specialist 1st Class Armando Gonzales/Released)