Welcome back to the our channel for a discussion about the $-4B “Doomsday Plane” and some of the other aircraft designed to serve as flying command centers. I had the privilege of getting a tour of the E-4B when I was working on Offut AFB's 2gwlan installation back in 2009-10. It's impressive, very utalitarian. No frills, and a lot of old technology. One thing they don't talk about in the video is the huge ULF antenna that gets reeled out the back of the plane. The spool that houses it when it's not deployed is huge, I believe it's over a mile long. Interesting. I never heard of this plane before. I'm glad it exists. I hope there is also a similar submarine. Along with the known underground complex that would mean there would be a triad of survivability options. If something terrible happened to take out the president, terror and chaos would reign. That would be horrible to behold. I always look forward to these Documentaries. The infrastructure behind the information gathering is amazing and it's good that old aircraft are repurposed and used for decades in this roll.