As an AWACS aircraft the E-3C Sentry provides American and allied commanders with the all-weather surveillance, command, control, communication, and coordination capabilities needed to prosecute a modern air war. Built on a modified Boeing 707 commercial airframe, the most important feature of the Sentry is its 30 foot diameter, 6 feet thick rotating radome mounted above the fuselage, which allows it to detect, identify, and track targets at a range of more than 200 miles.%n
