E-4B Advanced Airborne Command Post

Forecast International AeroWeb Logo
AeroWeb - Forecast International's Aerospace Portal

Product Type:

Airborne Operations Center

Using Service (US):

Air Force (USAF) - Fleet: 4x E-4B Aircraft

Program Status:

Upgrades and sustainment.

Prime Contractor:

The Boeing Company

The Boeing E-4B Advanced Airborne Command Post

About the E-4B Program:





The E-4B Advanced Airborne Command Post aircraft is an extensively modified Boeing 747-200. In case of national emergency or destruction of ground command control centers, the aircraft provides a highly survivable, command, control and communications center to direct U.S. military forces, execute emergency war orders, and coordinate actions by civil authorities. The aircraft is powered by four General Electric CF6-50E2 turbofan engines, each delivering 52,500 pounds of thrust.

The E-4B is used in support of the mission of National Airborne Operations Center (NAOC). NAOC supports the national decision makers and the Joint Chiefs of Staff (JCS) as a worldwide survivable and enduring node of the National Military Command System.

All four E-4Bs are assigned to the 55th Wing at Offutt Air Force Base in Nebraska. To provide direct support to the president, secretary of defense and the JCS, at least one E-4B is always on alert at one of a number of selected bases around the world.

The main deck is divided into six functional areas, including a command work area, conference room, briefing room, an operations team work area, and communications and rest areas. The E-4B crew includes up to 112 people, including a joint-service operations team, an ACC flight crew, a maintenance and security component, a communications team, and selected augmentees. The E-4B features electromagnetic pulse protection and an electrical system designed to support advanced electronics and a wide variety of new communications equipment. Other features include nuclear and thermal effects shielding, acoustic control, a technical control facility, and an air-conditioning system used to cool electrical components. An advanced satellite communications system provides worldwide communications between strategic and tactical satellite systems and the airborne operations center.

Boeing estimates that the current remaining design service life of the Boeing 747-200 E-4B airframe is 115,000 hours and 30,000 cycles, which will likely be reached by 2039. However, maintenance issues leading to extended depot periods is expected to limit the ability of E-4B fleet to support the NAOC mission due to aircraft non-availability. The maintenance limiting point will likely occur during the decade beginning 2020.

The E-4B is based on E-4A, which had been in service since 1974. The first B model was delivered to the Air Force in January 1980. By 1985, all aircraft were converted to the B configuration.

The E-4B is not the only Boeing 747 in U.S. military service. The Air Force is also operating two VC-25A (Air Force One) aircraft based on the B747-200 platform.



Armament/Weapons:

None.



Mission/Role:

The E-4B serves as the National Airborne Operations Center for the President, Secretary of Defense and the Joint Chiefs of Staff. In case of national emergency or destruction of ground command control centers, the aircraft provides a highly survivable, command, control and communications center to direct U.S. forces, execute emergency war orders and coordinate actions by civil authorities.



FY 2017 DoD E-4B Program:

This data is available in Forecast International's U.S. Defense Budget Forecast, which provides historic E-4B spending figures as well as a unique 10-Year Budget Forecast.



FY 2018 DoD E-4B Program:

This data is available in Forecast International's U.S. Defense Budget Forecast, which provides historic E-4B spending figures as well as a unique 10-Year Budget Forecast.




Sources: U.S. Department of Defense (DoD) and The Boeing Company.

By Forecast International /// Contact Us for Data Products and Consulting Services

Forecast International Budget Data:

With Forecast International's U.S. Defense Budget Forecast, you not only get the latest program news, the DoD funding, worldwide inventories and planned quantities, long range forecasts, but most important – an expert's rationale for all programs and the overall market.

DoD Spending in FY 2014, FY 2015, FY 2016, FY 2017 and FY 2018 + 10-year forecast

Military Aircraft Forecast:

Complete and detailed information, including production forecast data, is provided in our Market Intelligence Service, "Military Aircraft Forecast."

Military Aircraft Forecast
Military Aircraft Forecast
Defense Program

Tweet