160912-N-LV331-001 PATUXENT RIVER, Md. (Sept. 12, 2016) Secretary of the Navy Ray Mabus climbs into the cockpit of an EA-18G Growler, assigned to the Salty Dogs of Air Test and Evaluation Squadron (VX) 23, to take part in a test flight using 100 percent alternative jet fuel. 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)