As usual, Mr AF is correct.
Worse, when asked "WTF, over" when it was so much more expensive than the much more capable KC-45 variant (would've had all kinds of things the UK couldn't have used - boom, freight door, freight floor, receiver capability), it was "all very complicated" and in any event "we didn't need these capabilities anyway" because "OA has demonstrated it was irrelevant".
B0llocks...
S41