Boeing EC-135
AIRBORNE COMMAND POST AIRCRAFT FAMILY BY BOEING
Advanced Range Instrumentation Aircraft; EC-135E; Boeing EC-135E; EC-18B Advanced Range Instrumentation Aircraft; EC-18B; Boeing EC-135C; Boeing EC-135H Airborne Command Post
The Boeing EC-135 is a retired family of command and control aircraft derived from the Boeing C-135 Stratolifter. During the Cold War, the EC-135 was best known for being modified to perform the Looking Glass mission where one EC-135 was always airborne 24 hours a day to serve as flying command post for the Strategic Air Command in the event of nuclear war.