has begun assembling the fourth and final KC-46A flight-testing aircraft, the manufacturer's next-generation aerial refueling tanker replacement for the U.S. Air Force's current fleet of KC-135s.
The aircraft, a commercial derivative of the Boeing
767, will complete its first flight without the aerial refueling systems at "midyear," Boeing said. That flight will be followed by the first flight of the fully equipped test aircraft in early 2015.
“All four test aircraft are moving through production to support our transition to ground and flight testing later this year,” said Maureen Dougherty, Boeing vice president and KC-46 Tanker program manager.
First delivery to the U.S. Air Force is scheduled for early 2016.