130801-O-GR159-001 PATUXENT RVIER Md. (Aug. 1, 2013) Test pilot Capt. Michael Kingen flies BF-1, an F-35B Lightning II, during a 500-pound GBU-12 Paveway II laser-guided weapon separation test. BF-1 dropped the GBU-12 over the Atlantic Test Ranges from an internal weapons bay. The F-35B is the variant of the Lightning II designed for use by the U.S. Marine Corps, as well as F-35 international partners in the United Kingdom and Italy. The F-35B is capable of short takeoffs and vertical landings to enable air power projection from amphibious ships, ski-jump aircraft carriers and expeditionary airfields. The F-35B is undergoing flight test and evaluation at NAS Patuxent River, Md., prior to delivery to the fleet. (U.S. Navy photo courtesy of Lockheed Martin by Dane Wiedmann/Released)