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Boeing E-4 Nightwatch

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The Boeing E-4 Advanced Airborne Command Post, with the project name "Nightwatch", is a strategic command and control military aircraft operated by the United States Air Force (USAF). The E-4 series was specially modified from the Boeing 747-200B. 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. The four E-4Bs are operated by the 1st Airborne Command and Control Squadron of the 595th Command and Control Group located at Offutt Air Force Base, near Omaha, Nebraska. An E-4B is denoted a "National Airborne Operations Center" when in action.

Variants[edit]

  • E-4A: Three aircraft (s/n 73-1676, 73-1677, and 74-0787) produced, powered by Pratt & Whitney JT9D-7R4G2 engines. No bulge to house equipment on top of fuselage. These were later converted to E-4Bs.
  • E-4B: One built (s/n 75-0125) and equipped with 52,500-lb CF6-50E2 engines. Has nuclear electromagnetic pulse protection, nuclear and thermal effects shielding, advanced electronics, and a wide variety of communications equipment.

Users[edit]

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