management, and search-and-rescue capabilities. Four foreign
militaries currently fly E- 2 variants.
The E-2C, which had its first production delivery in 1973, is
equipped with the early warning APS- 145 radar and is capable
of detecting targets while simultaneously tracking more than
2,000 targets and controlling more than 20 airborne intercepts.
The Navy operates four configurations of the E-2C Group II aircraft, which have seen significant improvements over their years
of operation. In fiscal 2004, the Navy commenced fleet delivery
of a robust Group II Replacement Mission Computer effort and
state-of-the-art flat-panel displays.
The E-2C has demonstrated its capabilities during Operations
Enduring Freedom and Iraqi Freedom, providing critical battle and
airspace management, combat search-and-rescue command and
communication relay, and excelling in strike-control and tanker-control operations. It also has been a cornerstone in supporting
drug-interdiction efforts around the world. E-2C aircraft contributed in search-and-rescue operations after Hurricane Katrina in
New Orleans in 2005 and the earthquake in Haiti in January 2010,
providing urban relief efforts that included air traffic control.
The last variant of the E-2C, known as Hawkeye 2000, was
introduced in fiscal 2002. This variant includes an improved commercial, off-the-shelf- (COTS-) based mission computer upgrade,
a new operator display, upgraded cooling system, improved satellite communications and the USG- 3 Cooperative Engagement
Capability (CEC) system. Hawkeye 2000 E-2Cs equipped with
CEC were deployed for the first time in 2002 over Afghanistan.
The Navy continued procurement of the Hawkeye 2000
through 2007 and delivered the last E-2C Hawkeye aircraft Sept.
30, 2009, to VAW- 120.
Upgrades to the E-2C continue and include a new high-frequency radio, high-frequency Internet Protocol capabilities,
mission computer upgrade, software configuration set seven
and replacement of the multimission advanced tactical terminal
with USB-embedded national tactical receiver. All active fleet E-
2Cs employ the all-composite eight-bladed NP2000 propeller.
Communications, navigation and identification and mission
avionics installations continued through 2014. Aircraft reliability updates started in 2013, and include enhancements to the
intercommunication system, rate gyro/acceleration sensors,
CEC system and radar altimeter.
The E-2C equips eight fleet VAW squadrons. As of November
2014, there were 55 E-2Cs and one TE-2C training version in
WINGSPAN:.................. 80. 6 feet
LENGTH:...................... 57. 7 feet
HEIGHT: ....................... 18. 3 feet
WEIGHT: .......................maximum gross takeoff: 55,000 pounds
SPEED:.........................maximum 300+ knots
CEILING:....................... 30,000 feet
RANGE:........................ferry range, 1,300 nautical miles
POWER PLANT:........... 2 Rolls-Royce T56-A-427 (E-2C) turboprop
engines — 5, 100 shaft horsepower (shp) each
CREW: .......................... 2 pilots, 3 mission systems operators
CONTRACTOR: ...........Northrop Grumman Corp.
E-2D ADVANCED HAWKEYE
BRIEFING: The E-2D is designed for modern threats and increased
detection over blue water, land and in the littoral. Its radar provides
advanced 360-degree coverage with enhanced sector scan coverage
for continuous detection and tracking of targets, expanding maritime domain awareness operations and sorting the dense maritime
picture. Beyond the strike group, the E-2D’s command-and-control
capability makes it a multimission platform through its ability to
coordinate airborne strike, land force support, rescue operations,
managing a reliable communications network between widely dispersed nodes and drug interdiction operations support.
The systems and capabilities of the E-2D were completely
redesigned to advance the mission and provide a seamless stream
of information between the key players of the strike group. The E-
2D features the state-of-the-art APY- 9 radar with a two-generation
leap in capability and upgraded aircraft systems that improve supportability and increase readiness. The most visible change on the
aircraft is the glass cockpit. The 17-inch liquid crystal display panels provide the co-pilot with the ability to become a fourth tactical
operator — when not actively engaged in flying the aircraft — to
give the crew more flexibility in performing its diverse missions.
The U.S. Navy is currently developing an aerial refueling capability for fleet use in fiscal year 2020.
The E-2D made its maiden flight Aug. 3, 2007, and first mission systems flight Dec. 14, 2007. In 2009, the program completed an operational assessment, a Milestone C decision and a contract award for LRIP Lot 1 and Lot 2. The Navy awarded contracts
for LRIP aircraft in Lot 3 in 2011 and Lot 4 in 2012. The E-2D
completed Initial Operational Test and Evaluation in October
2012. The E-2D was approved for FRP in March 2013. Later that
year, the Navy awarded the FRP Lot 1 contract for five aircraft.
The E-2D Multiyear Program’s Secretary of Defense Certification
67 WWW.SEAPOWERMAGAZINE.ORG SEAPOWER ALMANAC 2015
E-2C HAWKEYE E-2D ADVANCED HAWKEYE