Back in the late winter, the AV-2 version of the X-47B was undergoing stress testing, with dozens of hydraulic jacks pushing and pulling on the airframe, at Northrop Grumman's Palmdale, Calif., facility. The company has said that the two X-47B aircraft are identical except that AV-2 will be equipped with aerial refueling gear.
December 1, 2011 7:19 AM PST
Photo by: Northrop Grumman
| Caption by: Jonathan Skillings
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