F-35B test aircraft BF-4 rests the evening after a day of testing at the Naval Electromagnetic Radiation Facility

NAVAL AIR SYSTEMS COMMAND, PATUXENT RIVER, Md. -- F-35B test aircraft BF-4 rests the evening of June 21 after a day of testing at the Naval Electromagnetic Radiation Facility. BF-4 is undergoing testing which simulates the shipboard electromagnetic environment to identify any potential issues prior to at sea testing this fall on USS Wasp (LHD 1). The F-35B is the short take-off, vertical landing variant of the F-35 Joint Strike Fighter for the U.S. Marine Corps and international partners and is undergoing test and evaluation at NAS Patuxent River prior to delivery to the fleet.