BF-17, part of the third lot of Low Rate Initial Production (LRIP 3) F-35B Lightning II aircraft, arrives at Naval Air Station Patuxent River, Md., Oct. 4. BF-17 will temporarily add to the complement of F-35B and F-35C test aircraft at the F-35 Integrated Test Facility before heading to its destination at Edwards Air Force Base, Calif.
The F-35B is the variant of the Joint Strike Fighter designed for use by U.S. Marine Corps, as well as F-35 international partners in the United Kingdom and Italy. The F-35B is capable of short take-offs and vertical landings to enable air power projection from amphibious ships, ski-jump aircraft carriers and expeditionary airfields. The F-35B is undergoing test and evaluation at NAS Patuxent River, Md., prior to delivery to the fleet. (Photo courtesy of Lockheed Martin)

NAVAIR press release