Air Force Chief of Staff Gen. Charles Brown is considering several options to replace the service's aging fleet of E-3 Airborne Warning and Control System aircraft, including Boeing's E-7 Wedgetail, he told reporters Thursday. Brown's comments came after Pacific Air Forces Commander Gen. Kenneth Wilsbach announced Feb. 24 his interest in buying the E-7 to replace AWACS for the airborne early warning and control mission, Air Force Magazine reported. Boeing built the 737-based Wedgetail for Australia and is now...