E-4B is designed to survive an EMP Blast

Boeing E-4 Advanced Airborne Command Post, with the project name "Nightwatch",is an aircraft operated by the United States Air Force (USAF).

A right front view of an E-4 advanced airborne command post (AABNCP) on the electromagnetic pulse (EMP) simulator for the testing. Location: KIRTLAND AIR FORCE BASE, NEW MEXICO (NM) UNITED STATES OF AMERICA (USA). Call Sign : USAF-50125

The Boeing E-4 Advanced Airborne Command Post, with the project name "Nightwatch", is an aircraft operated by the United States Air Force (USAF). To create the E-4 series, four Boeing 747-200B airframes were specially modified to serve 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 (ONLY) FOUR E-4Bs are operated by the 1st Airborne Command and Control Squadron of the 55th Wing located at Offutt Air Force Base, near Omaha, Nebraska. An E-4B is denoted a "National Airborne Operations Center" when in action...The E-4B is designed to survive an EMP with systems intact and has state-of-the-art direct fire countermeasures. Although many older aircraft have been upgraded with glass cockpits, the E-4B still uses traditional analog instruments, as they are less susceptible to damage from an EMP blast