A [[military]] Airborne Early Warning and Control [[jet]] based on the Boeing 707 airframe. The four-engined Sentry serves as the linchpin of an Airborne Warning and Control System, equipped with a 9.1 meter (30 foot) dorsal rotodome and communications equipment that enables it to surveil large areas and control aircraft within its assigned airspace.

h4. See also

* [[List of airplanes]]
* Boeing [[E-767]]
* Grumman [[E-2 Hawkeye]]

h4. External links

* Wikipedia: "E-3 Sentry":http://en.wikipedia.org/wiki/Boeing_E-3_Sentry
e-3 sentry