Breaking footage of a doomsday plane flying very low over Austin
The Boeing E-4 Advanced Airborne Command Post, with the project name “Nightwatch”, is an aircraft operated by the United States Air Force (USAF). To create the E-4 series, four Boeing 747-200 airframes were specially modified to serve as a survivable mobile command post for the National Command Authority, namely the President of the United States, the Secretary of Defense, and successors. The four E-4s are operated by the 1st Airborne Command and Control Squadron of the 55th Wing located at Offutt Air Force Base, near Omaha, Nebraska.
The Boeing E-4 is a modified 747 SP with the bump upper deck
The only operator of this type is de US Air Force. They own 4 aircraft (E-4Bs), all assigned to the 1st ACCS, 55th Wg based at Offutt AFB, Nebraska. Serials are: 73-1676, 73-1677, 74-0787 and 75-0125