specs của E2 C Hawkeye
-2C Hawkeye (aka "The Hummer")
E-2C/E-2C+ AIRCRAFT DESCRIPTION Contractor:
Northrop Grumman (Prime), Westinghouse
Type:
Early warning and
control aircraft
Power Plant:
E-2C: Two Allison T56-A-425 turboprops; each has approximately 4,600 horsepower
E-2C+: Two Allison T56-A-427 engines; each has approximately 5,100 horsepower; since 1988
Accommodations:
Crew of five—two pilots and three operators.
Performance:
E-2C: maximum speed 350 knots; range 1,300
nautical miles
E-2C+: maximum speed 350 knots; range 1,500 nautical miles
Countermeasures:
Not applicable
Armament:
E-2C: Lockheed Martin Ocean, Radar, and Surveillance Systems [ex General Electric Corporation] AN/APS-138 radar since 1984;
AN/APS-139 since 1988
E-2C+: Lockheed Martin Ocean, Radar, and Surveillance Systems [ex
General Electric Corporation] AN/APS-145 radar since 1991
All: AN/ALR-73 Passive Detection System, IFF
Mission and Capabilities:
- High-wing, all-weather, carrier-based airborne early warning and control (AEW&C) aircraft that patrols task force defense perimeters
- Provides early warning of approaching enemy aircraft and vectors interceptors into attack position
- In addition to its primary AEW function, can also provide strike and traffic control, area surveillance, search and rescue guidance, navigational assistance, communications relay, and drug interdiction.
- Group II upgrade to E-2C+ is the biggest advance in AEW technology in two decades.
- AN/APS-145 radar provides fully automatic overland detection and tracking and significantly extends the radar detection limits. The radar capable of detecting targets anywhere within a three-million-cubic-mile surveillance envelope while simultaneously monitoring maritime traffic.
- An Enhanced High-Speed Processor, which expands the active track file by 400% over previous versions, is incorporated into the mission computer. Each E-2C can maintain all-weather patrols, track, automatically and simultaneously, more than 600 targets, and control more than 40 airborne intercepts.
- Enhanced Main Display Units provide operators with improved visual representation.
- Joint Tactical Information Distribution System (JTIDS) incorporates several anti-jam features to allow uninterrupted voice and data communications, thereby enhancing interoperability.
Program Summary:
- In service with Naval Air Forces Atlantic and Naval Air Forces Pacific, as well as the armed forces of Israel, Japan, Egypt, Singapore, and Taiwan
- Was delivered to France in 1997
- Discussions with several other potential customers are ongoing.
- The Hawkeye entered service in 1961 as the E-2A and was updated in 1969 to the E-2B.
- E-2C was introduced in 1973.
- In 1978, the AN/APS-125 Advanced Radar Processing System was introduced and was succeeded in 1984 by the AN/APS-138 (now referred to as Group 0).
- Retirement has begun.
- In 1988, Group I version was introduced; this featured an upgraded T56-A-427 engine, which eliminated operating restrictions imposed by growth in the aircraft’s gross weight due to incorporation of new systems.
- Radar was updated to the AN/APS-139 with a High-Speed Processor that doubled the track files maintained by the system.
- Eighteen Group I aircraft were built and are being upgraded to Group II configuration.
- The AN/APS-145 radar alleviates saturation, track overload, and overland tracking clutter.
- Group II increases radar and IFF range, radar volume, target track capability, number of targets displayed, and target recognition capability through the use of color displays.
- Group I and Group II aircraft are also referred to as E-2C+.
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E-2 TECHNICAL DATA:
External Dimensions</h2>
Wing span 24.56 m / 80' 7" Wing chord: (at root) 3.96 m Wing chord (at tip) 1.32 m Wing aspect ratio 8.94 m Length overall 17.54 m / 57' 9" Height overall 5.58 m / 18' 4" Diameter of rotodome 7.32 m Tailplane span 7.99 m Wheel track 5.93 m Wheel base 7.06 m
Propeller diameter 4.11 m
Areas</h2> Wings, gross 65.03 m[sup]2 [/sup]/ 700 sq. ft. Ailerons (totals) 5.76 m[sup]2[/sup] Trailing-edge flaps (total) 11.03 m[sup]2[/sup] Fins, include rudders and tabs: Outboard (total) 10.25 m[sup]2[/sup] Inboard (total) 4.76 m[sup]2[/sup] Tailplane 11.62 m[sup]2[/sup] Elevators (total) 3.72 m[sup]2[/sup] Weights and Loadings</h2> Weight empty 17,859 kg / 40,484 lbs. Maximum fuel (internal, usable) 5,624 kg / 12,400 lbs. Maximum T-O weight 5,624 kg / 54,426 lbs. Maximum power loading 3.18 kg/kW
Performance (at maximum Takeoff Weight)</h2> Maximum level speed 338 knots Cruising speed (ferry) 259-260 knots Approach speed 103 knots Stalling speed (landing configuration) 75 knots Service ceiling 11,275 m / 37,000' Minimum T-O run 564 m / 1,850' T-O to 15 m 793 m Minimum landing run 439 m Combat Radius 1,500 Km Ferry range 1,540-1,542 nm Time on station, 175 nautical miles from base 4 hr. 24 min Endurance with maximum fuel 6 hr. 15 min
