The head of Air Combat Command doesn't anticipate the Air Force would receive the Boeing E-7A Wedgetail this year or next if the service moves forward with buying the aircraft as a replacement for its aging E-3 Sentry fleet. Gen. Mark Kelly’s comments today came in the week after the service posted a notice seeking studies and analyses of “activities related to the current E-7A baseline configuration and [a determination of] what additional work” would be needed to meet Air...