Aviation Week article
Snip:-
Boeing’s first KC-46 Pegasus tanker slated for delivery to the U.S. Air Force made its first flight Dec. 5, as the company finally acknowledged that the aircraft won’t be handed over to the service until 2018.
Progress - but costs still rising.
Meanwhile, costs continue to rise, with Boeing seeing an additional $329 million charge related to KC-46 development in the third quarter of 2017 in addition to the more than $2 billion incurred since 2014.