Many thanks to SWLing Post contributor, Jason Whiteley, who shares a video tour of the E-4B NAOC Doomsday Plane and notes:
This is a pretty interesting video of the inside of the flying Pentagon or Doomsday Plane. There is a lot of radio equipment on board including a radio antenna that can fly out of the back of the plane:
This is very cool, Jason! It’s amazing how much technology they’ve crammed into this Boeing 747-200. The 747 is a large aircraft, but when loaded with so much technology and support staff, there’s no room to spare.
With a video this detailed in the public domain, I can’t help but think there may already be a replacement for the E-4B.
Thanks for sharing!