EC-135N 61-0327, originally a C-135A assigned to MATS/MAC, converted to Apollo Range Instrumentation Aircraft (ARIA) with the big "droop snoot" nose, then converted to an EC as an airborne command post. Served with the 99th AREFS/19th AREFW at Robins in the later role, prior to retirement operated out of MacDill in support of CENTCOM.  - Mark Morgan