The Air Force, citing unspecified "administrative reasons," this morning announced that an update to the draft request for proposals for a new aerial refueling tanker will delayed until "late next week," according to a service spokesman. The delay is not expected to affect the service's plans to release the final version of the request for proposals -- which will kick of the competition to build 179 aircraft to replace the aging KC-135 fleet -- in late January, said Donald Manuszewski,...