Derived from the Boeing 707, it provides all-weather surveillance, command, control, and communications, and is used by the United States Air Force, NATO, Royal Air Force, French Air Force, and Royal Saudi Air Force.
O E-3 deriva do Boeing 707, e realiza labores de vixilancia todo-tempo, mando, control e comunicacións, sendo usado pola Forza Aérea dos Estados Unidos, a OTAN, a Royal Air Force, a Forza Aérea de Francia e a Forza Aérea de Arabia Saudí.