FLYING AGAIN: The second Lockheed Martin F-35B short-takeoff-and-vertical-landing (STOVL) test aircraft, BF-2, is back to work following its return to flight on July 13. BF-2 had been in modification since its first flight on Feb. 25 and incorporates several hardware and software upgrades. Aerial refueling testing is planned to begin late this month. The first STOVL aircraft, BF-1, is expected return to flight by the end of July after completing modification and a propulsion-system checkout ...


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