The latest inning in the KC-X tanker war is heating up as competitors Boeing and Northrop Grumman have posed more questions about the draft request for proposal than the Air Force has answered. Some analysts believe the Pentagon's refinement of the RFP has made the contest more not less prone to potential protests. Here, four KC-135 tankers, assigned to the Iowa Air National Guard's 185th Air Refueling Wing taxi prior to take off from the Sioux Gateway Airport in Sioux City, Iowa, Sept. 3, 2009.
Daily Report: The day's top news on the US Air Force, airpower, and national security issues.
Daily Report: Read the day's top news on the US Air Force, airpower, and national security issues.
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