The E-4B evolved from the E-4A, which had been in service since late 1974. USSTRATCOM also provides personnel for the joint airborne operations center battle staff. E-4B operations are directed by the JCS and executed through U.S. In addition to its national and NC2 mission, the E-4B provides support to the Federal Emergency Management Agency, which provides communications and command center capability to relief efforts following natural disasters, such as hurricanes and earthquakes.Īir Force Global Strike Command is the Air Force single-resource manager for the E-4B, and provides aircrew, maintenance, security and communications support. To provide direct support to the President, the Secretary of Defense, and the JCS, at least one E-4B NAOC is always on 24-hour alert, 7-days a week, with a global watch team at one of many selected bases throughout the world.
Other improvements include nuclear and thermal effects shielding, acoustic control, an improved technical control facility and an upgraded air-conditioning system for cooling electrical components. An advanced satellite communications system provides worldwide communication for senior leaders through the airborne operations center. The E-4B is protected against the effects of electromagnetic pulse and has an electrical system designed to support advanced electronics and a wide variety of communications equipment. An E-4B may include seating for up to 112 people, including a joint-service operations team, Air Force flight crew, maintenance and security component, communications team and selected augmentees. The main deck is divided into six functional areas: a command work area, conference room, briefing room, an operations team work area, communications area and rest area. The E-4B, a militarized version of the Boeing 747-200, is a four-engine, swept-wing, long-range high-altitude airplane capable of refueling in flight. Additionally, the E-4B provides outside the continental United States travel support for the Secretary of Defense and his staff to ensure Title 10 command and control connectivity. The conduct of E-4B operations encompasses all phases of the threat spectrum. forces, execute emergency war orders and coordinate actions by civil authorities. In case of national emergency or destruction of ground command and control centers, the aircraft provides a highly survivable command, control and communications center to direct U.S. The E-4B serves as the National Airborne Operations Center and is a key component of the National Military Command System for the President, the Secretary of Defense and the Joint Chiefs of Staff.
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