ABOARD THE AIRCRAFT CARRIER GEORGE WASHINGTON -- The Navy and Marine Corps F-35 integrated test force will shift its focus to an October at-sea test after completing the final Joint Strike Fighter developmental test. Tom "Briggo" Briggs, the air vehicle engineering head at Naval Air Systems Command, told reporters here Aug. 15 after Developmental Test-3 wraps up his team will pack up its gear and truck it across the country for a West Coast at-sea F-35B short-takeoff-and-vertical-landing test aboard the...