RAAF has been using them with F-35 for a couple of years now with no issues reported to my knowledge. There were a few teething problems at first (pre-F35) - hardly surprising for the launch customer. They flew operationally over Iraq from October 2014 supporting coalition air forces including the USAFIt is 2020 so my question is are allied forces that have F-35s and depend on MRTTs confident they can do the job? Clearly the KC-46, at the moment, can’t. Then there are the QA problems which are a separate issue. Lastly, the “Pacific pivot“, IMO, made the MRTT a better choice for this reason due to capacity and range.