The E-2C Hawkeye is the U.S. Navy's all-weather, carrier-based
tactical airborne warning and control system platform. It provides
all-weather airborne early warning and command and control functions
for the carrier battle group. Additional missions include surface
surveillance coordination, strike and interceptor control, search and
rescue guidance and communications relay.
An integral component of the carrier air wing, the E-2C carries
three primary sensors: radar, IFF, and a passive detection
system. These sensors are integrated through a general purpose
computer that enables the E-2C to provide early warning, threat
analyses, and control of counter action against air and surface
targets. The E-2C incorporates the latest solid state electronics.
Carrier-based E-2C Hawkeye airborne early warning aircraft directed
F-14 Tomcat fighters that provided combat air patrol during the
two-carrier battle group joint strike against terrorist-related Libyan
targets in 1986, and during the crisis period preceeding and following
the strike. E-2Cs and AEGIS cruisers, working together, provided total
air mass superiority over the American fleet. During this time,
American aircraft made 153 intercepts of Libyan air force attempts to
overfly the U.S. fleet, intercept the U.S. fighter combat air patrol,
or gather intelligence information. Not once did a Libyan aircraft get
into firing position before it was locked into the sights of a
U.S. aircraft or AEGIS platform missile.
There currently is one squadron of four Hawkeyes in each carrier
air wing (CVW).
E-2 aircraft also have worked extremely effectively with U.S. law
enforcement agencies in drug interdiction operations. The E-2C
replaces the E-2B, an earlier version. E-2C aircraft entered U.S. Navy
service with Airborne Early Warning Squadron 123 (VAW-123) at NAS
Norfolk, Va., in November 1973. Procurement of E-2Cs by the Navy is
planned at six per year for FY 1988-98.
The E-2C+ upgrade includes radar improvements, software upgrades,
and more powerful engines. Further plans include upgrading the whole
E-2 fleet to Block I and II status, which mean a new radar (APS-139
and APS-145, respectively) and overall improved processing
On 26 April 1999 Northrop Grumman was awarded a $1,305,400,000
multiyear advanced acquisition contract for the procurement of 21
airborne early warning E-2C aircraft in the Hawkeye 2000 configuration
for the US Navy, and long lead material for one aircraft for the
government of France under the Foreign Military Sales Program. Work
will be performed in St. Augustine, Fla. (80%), and Bethpage,
N.Y. (20%), and is expected to be completed by July 2006.
Taiwan received four E-2T [for Taiwan] Hawkeyes as of September
1995 as part of a $749.5 million deal with US firm Northrop
Grumman. In conjunction with F-16 and Mirage 2000 fighters, the E-2Ts
will enhance Taiwan's air defence capability, increasing attack
warning times from five minutes to 25 minutes.
Northrop Grumman (Prime),
Early warning and control
Allison T56-A-425 turboprops; each has approximately
Allison T56-A-427 engines; each has approximately 5,100
horsepower; since 1988
Crew of fivetwo
pilots and three operators.
maximum speed 350 knots; range 1,300 nautical miles
maximum speed 350 knots; range 1,500 nautical miles
Lockheed Martin Ocean,
Radar, and Surveillance Systems [ex General Electric Corporation] AN/APS-138 radar since 1984;
Lockheed Martin Ocean,
Radar, and Surveillance Systems [ex General Electric Corporation]
AN/APS-145 radar since 1991
Passive Detection System, IFF
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
- 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
- Joint Tactical
Information Distribution System (JTIDS)
incorporates several anti-jam features to allow
uninterrupted voice and data communications,
thereby enhancing interoperability.
- 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
- Will be 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 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;
only 53 of these aircraft remain in the
- In 1988, Group I
version was introduced; this featured an upgraded
T56-A-427 engine, which eliminated operating
restrictions imposed by growth in the
aircrafts 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
- Group I and Group II
aircraft are also referred to as E-2C+.
E-2 TECHNICAL DATA:
|Wing chord: (at
|Wing chord (at
|Wing aspect ratio
rudders and tabs:
Weights and Loadings
Performance (at maximum Takeoff Weight)
|Minimum T-O run
|T-O to 15 m
|Time on station,
175 nautical miles from base
||4 hr. 24 min
||6 hr. 15 min
Sources and Resources
- NRL accepts Navy's first CEC/Hawkeye 2000 NP-3D Tester March 11, 1999 -- The Hawkeye 2000 system incorporates numerous enhancements, including CEC and state-of-the-art computer that processes information to advanced control indicator set (ACIS) displays.
- E-2C Naval Training System Plan [PDF]
Foreign Military Sales
- TAIWAN ACTS TO IMPROVE DEFENSE CAPABILITY Taipei, Oct. 31 (CNA) As the United States has agreed to provide two E-2T air defense warning systems the second-phase plans of the "strong-net" air defense system can be completed by fiscal 2002. New procurement plans include an eighth Cheng-kung class missile frigate, 11 Chin-chiang class patrol vessels, 11 American-made S-70C anti-submarine helicopters, and one LSD38 landing vessel.
- AWACS AIRCRAFT ORDERED BY TAIWAN TO BE DELIVERED FROM 2003 China News Agency [Taiwan] 14 September 1999 -- The two planes will bring to six the ROC fleet of AWACS aircraft.
- US AGREES TO SELL EARLY WARNING RADAR TO TAIWAN Central News Agency [Taiwan] 05 August 1999 -- The United States has tentatively agreed to furnish Taiwan with early warning radar to upgrade its self-defense capabilities.
- Foreign Military Sale, TECRO July 30, 1999 - The Department of Defense announced today the possible sale to the Taipei Economic and Cultural Representative Office (TECRO) in the United States of two E-2T Hawkeye 2000E aircraft, two AN/APS-145 radars.
- U.S. Navy delivers Hawkeye to France Tester May 13, 1999 -- The government of France has signed a letter of intent with the U.S. government for the purchase of long lead items necessary to produce a third E-2C aircraft.
- Hellenic air force seeks Navy E-2C Hawkeye Tester September 11, 1998 -- Looking to improve Greece's capability to detect air targets and simultaneously strengthen its command, control, communications, computers and intelligence (C4I), the Hellenic air force (HAF) descended upon Naval Air Warfare Center Aircraft Division recently for a thorough evaluation of the E-2C Hawkeye aircraft.
Maintained by Robert Sherman
Originally created by John Pike