The Boeing E-4 Advanced Airborne Command Post (AACP), the current "Nightwatch" aircraft, is a strategic command and control military aircraft operated by the United States Air Force. The E-4 series are specially modified from the Boeing 747-200B for the National Emergency Airborne Command Post program. The E-4 serves as a survivable mobile command post for the National Command Authority, namely the President of the United States, the Secretary of Defense, and successors.
There was a Boeing E-4 Nightwatch in October using the callsign Trust17
https://pbs.twimg.com/media/EjrNYZcVkAAJSFV?format=jpg&name=large
The Boeing E-4 Advanced Airborne Command Post (AACP), the current "Nightwatch" aircraft, is a strategic command and control military aircraft operated by the United States Air Force. The E-4 series are specially modified from the Boeing 747-200B for the National Emergency Airborne Command Post program. The E-4 serves as a survivable mobile command post for the National Command Authority, namely the President of the United States, the Secretary of Defense, and successors.