11.   Critics say the Air Force would be better served if it bought the refueling tankers outright and that the money looks like corporate welfare for Boeing.

12.   Critics say the Air Force would be better served if it purchased new refueling tankers and that the money looks like corporate welfare for Boeing.

13.   It keeps airborne refueling tankers in the Emirates.

14.   MacDill Air Force Base in Tampa arranged to fly its six refueling tankers to safety in Kansas.

15.   Support planes, including refueling tankers, already were in the air.

16.   This figure includes missions by fighters, refueling tankers and airborne radars, Venable said.

17.   U.S. sends more bombers, air defense-jamming planes and refueling tankers to support intensified NATO airstrikes on Serb troops.

18.   The sprawling desert base is used mainly by air-to-air refueling tankers.