(Editor's Note: This story has been updated to reflect that Northrop Grumman has not teamed up with Gulfstream but has offered a militarized G550 business jet as a possible solution.) Boeing and Northrop Grumman have unveiled their competing proposals to replace the Air Force's E-8C Joint Surveillance Target Attack Radar System as the service moves forward on the multibillion-dollar recapitalization effort. Boeing has proposed its 737-700 commercial airliner for the airframe component of the program whereas Northrop has put...
