The KC-46A has completed the fuel on-load testing portion required for the FAA Supplemental Type Certificate (STC) by refueling another KC-46A in mid-air.
Photo: Boeing
146,000 pounds of fuel was transferred at the maximum fuel off-load rate of 1,200 gallons per minute, Boeing says.
The tanker has made 68 contacts with refueling aircraft such as the KC-135 so far in the test program.
The test fleet has also accumulated 2,700 flight hours.