Cmdr. Jessica Barrientos (left) relieved Cmdr. Charles Larwood (right) as the commanding officer of Air Test and Evaluation Squadron (VX) 20 during a change of command ceremony at Naval Air Station Patuxent River, Oct. 3. VX-20 is a component of Naval Test Wing Atlantic, under the Naval Air Warfare Center Aircraft Division (NAWCAD). With facilities in Patuxent River, Maryland, Lakehurst, New Jersey and Orlando, Florida, NAWCAD advances capability and operational readiness for naval aviation.