An E-4B National Command Post aircraft arrived at Boeing Wichita recently for an 11-months stay for regularly scheduled maintenance.
The E-4B is the second in Wichita. Another E-4B aircraft is here undergoing a major upgrade, Boeing said.
The E-4B is a militarized version of the 747-200.
It serves as the National Airborne Operations Center for the president, secretary of defense and the Joint Chiefs of Staff. In the case of a national emergency or the destruction of ground command control centers, the aircraft is a survivable command post used to direct U.S. forces, execute emergency war orders and coordinate the actions of civil authorities.
The planes are also used to support VIP travel and assist the Federal Emergency Management Agency by providing communications to relief efforts following natural disasters such as hurricanes and earthquakes.