The U.S. Air Force E-4B Nightwatch is a modified Boeing 747-200, also called the Doomsday airplane. Built in the 1970s, the four E-4Bs were designed to act as a flying White House in case a nuclear ...

The Boeing E-6B Mercury was last spotted crossing the Atlantic east of Virginia Beach on Friday before its transponder went dark during a classified operation.

The E-4B "Nightwatch" is nicknamed the Doomsday Plane. It's designed to survive a nuclear blast. In the event of nuclear war, the militarized Boeing 747 will become the command center for the US ...