The Northrop Grumman E-2 Hawkeye is an American all-weather, carrier-capable tactical airborne early warning (AEW) aircraft.In addition to U.S. Navy service, smaller numbers of E-2s have been sold to the armed forces of Egypt, France, Israel, Japan, Mexico, Singapore and Taiwan.Continual improvements in airborne radars through 1956 led to the construction of AEW airplanes by several different countries and several different armed forces.These vessels were built during World War II and were smaller than modern carriers, being later modified to allow them to operate jet aircraft.[citation needed] By 1997, the US Navy intended that all front line squadrons would be equipped, for a total of 75 Group II aircraft.A variant of the Group II with upgrades to the mission computer and CIC workstations is referred to as the MCU/ACIS, these were produced in small numbers due to production of the Hawkeye 2000 soon after its introduction.This upgrade allows faster processing, double current trackfile capacity and access to satellite information networks.[9] The remaining Hawkeye Group II NAV Upgrade aircraft received GPS approach capability, but did not get the solid-state glass displays.The E-2D includes provisions for the copilot to act as a "Tactical 4th Operator" (T4O), who can reconfigure his main cockpit display to show radar, IFF, Link 16 (JTIDS)/CEC and access all acquired data.[16] The APY-9 radar has been suspected of being capable of detecting fighter-sized stealth aircraft, which are typically optimized against high frequencies like Ka, Ku, X, C and parts of the S-bands.Historically, UHF radars had resolution and detection issues that made them ineffective for accurate targeting and fire control; Northrop Grumman and Lockheed claim that the APY-9 has solved these shortcomings by using advanced electronic scanning and high digital computing power via space/time adaptive processing.According to the Navy's NIFC-CA concept, the E-2D could guide fleet weapons, such as AIM-120 AMRAAM and SM-6 missiles, onto targets beyond a launch platform's detection range or capabilities.[26][needs update] The E-2 is a high-wing airplane, with one Allison T56 turboprop engine (5250 shp rating) on each wing[27] and retractable tricycle landing gear.As with all carrier-borne airplanes, the E-2 is equipped with a tail hook for recovery (landing) and the nose gear can attach to a shuttle of the aircraft carrier's catapults for launch (takeoff).[citation needed] In U.S. service, the E-2 Hawkeye provides all-weather airborne early warning and command and control capabilities for all aircraft-carrier battle groups.[citation needed] The E-2C and E-2D Hawkeyes use advanced electronic sensors combined with digital computer signal processing, especially its radars, for early warning of enemy aircraft attacks and anti-ship missile attacks, controlling the carrier's combat air patrol (CAP) fighters, and secondarily for surveillance of the surrounding sea and land for enemy warships and guided-missile launchers and any other electronic surveillance missions as directed.Hawkeyes have supported the U.S. Coast Guard, the U.S. Customs Service, and American federal and state police forces during anti-drug operations.In the mid-1980s, several U.S. Navy E-2Cs were made available to the U.S. Coast Guard and the U.S. Customs Service for counter-narcotics (CN) and maritime interdiction operations (MIO).Bush as flying command posts and air traffic controllers over Iraq during Operation Inherent Resolve against the Islamic State.[35] On 11 March 2015, the Theodore Roosevelt Carrier Strike Group departed Naval Station Norfolk[40] and returned to port on 23 November 2015, concluding the first operational use of the E-2D.[41] E-2 Hawkeyes have been sold by the U.S. Federal Government under Foreign Military Sales (FMS) procedures to the armed forces of Egypt, France, Israel, Japan, Singapore and Taiwan.The Flottille 4F of the French Navy's Aeronavale was stood up on 2 July 2000 and flies its E-2C Hawkeyes from its naval air station at Lann-Bihoue, deploying to the Charles de Gaulle.[48] On 6 September 1976, Soviet Air Forces pilot Viktor Belenko successfully defected, landing his MiG-25 'Foxbat' at Hakodate Airport, Japan.[53] In 2004, three former Israel Air Force E-2C aircraft were sold to the Mexican Navy to perform maritime and shore surveillance missions.In April 2007, it was announced that the four E-2C Hawkeyes were to be replaced with four Gulfstream G550s which would become the primary early warning aircraft of the Singapore Air Force.The four examples were soon put into active service before and during the 1982 Lebanon War during which they won a resounding victory over Syrian air defenses and fighter control.Under constant escort by F-15 Eagles, there were always two Hawkeyes on station off the Lebanese coast, controlling the various assets in the air and detecting any Syrian aircraft upon their takeoff, eliminating any chance of surprise.
An E-2C Hawkeye assigned to
VAW-120
flies over Jacksonville, Florida