The Northrop Grumman E-2 Hawkeye is an American all-weather, carrier-capable tactical airborne early warning (AEW) aircraft. This twin-turboprop aircraft was designed and developed during the late 1950s and early 1960s by the Grumman Aircraft Company for the United States Navy as a replacement for the earlier, piston-engined E-1 Tracer, which was rapidly becoming obsolete. The aircraft's performance has been upgraded with the E-2B and E-2C versions, where most of the changes were made to the radar and radio communications due to advances in electronic integrated circuits and other electronics. The fourth major version of the Hawkeye is the E-2D, which first flew in 2007. The E-2 was the first aircraft designed specifically for AEW, as opposed to a modification of an existing airframe, such as the Boeing E-3 Sentry. Variants of the Hawkeye have been in continuous production since 1960, giving it the longest production run of any carrier-based aircraft.

The E-2A entered U.S. Navy service in January 1964 and in April 1964 with VAW-11 at NAS North Island. The first deployment was aboard the aircraft carrier USS Kitty Hawk during 1965.
Since entering combat during the Vietnam War, the E-2 has served the US Navy around the world, acting as the electronic "eyes of the fleet".
In August 1981, a Hawkeye from VAW-124 "Bear Aces" directed two F-14 Tomcats from VF-41 "Black Aces" in an intercept mission in the Gulf of Sidra that resulted in the downing of two Libyan Sukhoi Su-22s. Hawkeyes from VAW-123 aboard the aircraft carrier USS America directed a group of F-14 Tomcat fighters flying the Combat Air Patrol during Operation El Dorado Canyon, the joint strike of two Carrier Battle Groups in the Mediterranean Sea against Libyan targets during 1986.
More recently, E-2Cs provided the command and control for both aerial warfare and land-attack missions during the Persian Gulf War. Hawkeyes have supported the U.S. Coast Guard, the U.S. Customs Service, and American federal and state police forces during anti-drug operations.

Controls:
AG1: Navigation lights
AG2: Beacon lights
AG4: Reverse props
AG5: Nose lights
AG6: Fold wings for storage
AG7: Arm tail hook
AG8: Toggle radar rotodome
VTOL: Flaps
Trim: Adjust trim