Airborne Early Warning
Encyclopedia
An airborne early warning and control (AEW&C) (or more commonly and historically an AWAC) system is an airborne radar
system designed to detect aircraft
at long ranges and control and command the battle space in an air engagement by directing fighter and attack plane strikes. AEW&C/AWAC units are also used to carry out surveillance, including over ground targets and frequently perform C2BM (command and control, battle management) functions similar to an Airport Traffic Controller given military command over other forces. Used at a high altitude, the radars on the aircraft allow the operators to distinguish between friendly and hostile aircraft hundreds of miles away.
AWAC/AEW&C aircraft are used for both defensive and offensive air operations, and are to the NATO and USA forces trained or integrated Air Force
s what the Command Information Center is to a Navy
Warship
, plus a highly mobile and powerful radar platform. The system is used offensively to direct fighters to their target locations, and defensively in order to counter attacks by enemy forces, both air and ground. So useful is the advantage of command and control from a high altitude, the United States Navy operates AWAC aircraft off its Supercarrier
s to augment and protect its Carrier Command Information Centers (CICs)
AEW&C is also known by the older terms "airborne early warning" (AEW) and "airborne warning and control system" (AWACS, icon ).
. In air-to-air combat, AEW&C systems can communicate with friendly aircraft, extend their sensor range and give them added stealth, since they no longer need their own active radar to detect threats. However, by the nature of radar, AWACS aircraft can be detected by opposing forces beyond its own detection range. This is because the outgoing pulse reduces in strength the further it travels. Therefore, a signal intended to reflect back must be strong enough to cover at least twice the distance between the sender and the target—more in practice due to absorption losses.
aircraft were a threat to shipping. A Vickers Wellington
bomber (serial R1629) was fitted with a rotating antenna array. It was trialled for use against aerial targets and then for possible use against German E boats. Another installation was a radar equipped Wellington used to direct Bristol Beaufighter
s onto Heinkel He 111
s, which were air-launching V-1 flying bomb
s.
In February 1944 the U.S. Navy ordered the development of a radar system that could be carried aloft in an aircraft as Project Cadillac. A prototype system was built and flown in August on a modified TBM Avenger
torpedo bomber
. Tests proved successful, with the system being able to detect low flying formations at a range in excess of 100 miles (160.9 km). The U.S. Navy then ordered production of the TBM-3W, the first AEW aircraft to enter service. TBM-3Ws fitted with the AN/APS-20 radar entered service in March 1945, with some 36–40 eventually being constructed.
In 1958, the Soviet
Tupolev Design Bureau
was also ordered to design an AWACS aircraft. After trying to fit the projected radar instrumentation in a Tu-95
and a Tupolev Tu-116, the decision was made to use the Tu-114
fuselage instead. This solved the problems with cooling and operator space that existed with the narrower Tu-95 and Tu-116 fuselage. To meet the flight range requirements, the plane was fitted with an air-to-air refueling receiver. The resulting plane, the Tu-126
, was used by the Soviet Air Forces until it was replaced by the Beriev A-50
in 1984.
Defense and Space Group (now Integrated Defense Systems
) and is based on the Boeing 707-320
aircraft. 65 E-3 were built and it is operated by NATO and four nations. The specially designed Grumman E-2 Hawkeye entered service in 1965 and has been operated by eight different nations. Over 168 have been produced so far and new versions continue to be developed making it the most widely used AEW system. For the Japan Air Self-Defense Force
, the E-3 technology has been fitted into the Boeing E-767
.
After World War 2, the United Kingdom
deployed a substantial AEW capability with American Douglas AD-4W Skyraiders, designated Skyraider AEW.1, which in turn were replaced by the Fairey Gannet AEW.3
, using the same AN/APS-20 radar. When the Gannet was withdrawn, the Royal Air Force
(RAF) redeployed the radars from the Gannets onto Avro Shackleton
MR.2 airframes, redesignated Shackleton AEW.2. To replace the Shackleton AEW.2, an AEW variant of the Hawker Siddeley Nimrod, known as the Nimrod AEW3
, was ordered in 1974. However, after a protracted and problematic development, this was cancelled in 1986, and seven E-3Ds, designated
Sentry AEW.1 in RAF service, were purchased instead.
The Russian Air Force is currently using around 15–20 Beriev A-50 and A-50U "Shmel"
in the AEW role. The "Mainstay" is based on the Ilyushin Il-76
airframe, with a large non-rotating disk radome on the rear fuselage.
These replaced the 12 Tupolev Tu-126
that filled the role previously.
The Indian Air Force
ordered three IAI Phalcon
systems in 2004, the first of which first arrived on May 25, 2009.
The Royal Australian Air Force
and the Turkish Air Force
are deploying Boeing 737 AEW&C aircraft. Unlike the E-2 and E-3, the Boeing 737 AEW&C does not use a rotating disk radome
(rotodome) but instead has a large dorsal fin. It will probably be marketed towards many existing E-2 customers, who would otherwise have no choice but to purchase a system intended for an aircraft carrier
, due to lack of options.
The Swedish Air Force
use the S 100B Argus as their AEW platform. The S 100B Argus is based on the Saab 340
with an Ericsson
Erieye PS-890
radar.
The Hellenic Air Force
, Brazilian Air Force
and Mexican Air Force
use the Embraer R-99 with an Ericsson
Erieye PS-890 radar, as on the S 100B.
In early 2006, the Pakistan Air Force
ordered six Saab 2000
fitted with Erieye AEW systems from Sweden in a deal valued roughly $1bn. In December 2006, the Pakistan Navy
requested three excess P-3 Orion
aircraft equipped with Hawkeye 2000 AEW systems, the overall cost of the program is $855mn. China and Pakistan also signed a memorandum of understanding (MoU) for the joint development of AEW&C systems. A total of $278m AWACS deal has been struck with China.
Some AEW systems feature additional command and control
functionality, airborne warning and control system aircraft. These are often referred to as airborne early warning and control (AEW&C) systems.
Sea King ASaC7
naval helicopter. It is operated from the Royal Navy's Invincible-class
aircraft carrier
s. The creation of Sea King ASaC7, and earlier AEW.2 and AEW.5 is the consequence of the harsh lessons learnt by the Royal Navy in the 1982 Falklands War
when the lack of AEW coverage for the task force was a major tactical shortcoming. Also, the Spanish Navy
fields the SH-3 Sea King in the very same role, operated from the carriers Principe de Asturias
and Juan Carlos I
Another helicopter is the Russian-built Kamov Ka-31
, deployed by Indian Navy on Krivak-III frigates
and reportedly used by the Russian Navy on its sole Kuznetsov aircraft carrier. It is fitted with E-801M Oko (Eye) airborne electronic warfare radar that can track up to 20 targets simultaneously with aerial detection range 90 mi (150 km) and surface warships up to 160 mi (250 km).
The most modern helicopter-based AEW is the AgustaWestland EH101
AEW of the Italian Navy
.
designed and built by Boeing
(Defense & Space Group) using Westinghouse (now Northrop Grumman
) radar. It is mounted on either the E-3 Sentry
aircraft (Boeing 707
) or more recently a modified Boeing 767
. Only the Japanese Air Self-Defense Force has the 767 version, calling it the E-767
.
platform and developed for the Israeli Defense Force and for export. A Boeing 707
Phalcon system was delivered to Chile in 1993 where it is known as the “Condor”.
The Phalcon AEW&C aircraft is based on four sensors: phased-array radar, phased-array IFF, ESM/ELINT and CSM/COMINT. When one of the sensors reports a detection, the system automatically initiates an active search of the complementary sensors.
The second generation improvement of the Phalcon system was accomplished in the development of the Israeli ground based IAI EL/M-2080
"Green Pine" radar target tracking system used by the Israeli Defense Force. This system has been exported to several countries.
Israel has recently put in service a third generation variant of the Phalcon system on a highly modified Gulfstream G550 aircraft. Equipped with a more efficient and compact version of this airborne radar made by the ELTA division of Israel Aircraft Industries (IAI), the Gulfstream 550 CAEW is a long endurance, high altitude, rapid pop-up and descent system with unobstructed 360° coverage.
Israel Aircraft Industries (IAI) was marketing its Phalcon airborne early warning (AEW) system to China in competition with the British defense firm GEC-Marconi. In 1996 Tel Aviv and Beijing signed an agreement on purchasing the Phalcon radar system, which China insisted should be fitted onto Russian Ilyushin Il-76
aircraft. The Phalcon's triangular radar array would be mounted on the rear quarter fuselage of the Il-76 to provide full 360° scan coverage. Beijing was expected to acquire several PHALCON AEW systems, and reportedly could buy at least three more [and possibly up to eight] of these systems. But in July 2000 the United States pressured Israel to back out of a $1 billion agreement to sell China four Phalcon phased-array radar systems.
The India Air Force agreed in 2004 to purchase three systems for $1.1 billion. Russia and Israel on 10 October 2004 signed a tripartite agreement to facilitate the equipping of the Indian Air Force (IAF) with the Phalcon airborne warning and control systems. The IAF plans to mount the Phalcon radar and surveillance systems from IAI on Il-76 aircraft supplied by Russia. India received its first AWACS on 25 May 2009.
Radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...
system designed to detect aircraft
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...
at long ranges and control and command the battle space in an air engagement by directing fighter and attack plane strikes. AEW&C/AWAC units are also used to carry out surveillance, including over ground targets and frequently perform C2BM (command and control, battle management) functions similar to an Airport Traffic Controller given military command over other forces. Used at a high altitude, the radars on the aircraft allow the operators to distinguish between friendly and hostile aircraft hundreds of miles away.
AWAC/AEW&C aircraft are used for both defensive and offensive air operations, and are to the NATO and USA forces trained or integrated Air Force
Air force
An air force, also known in some countries as an air army, is in the broadest sense, the national military organization that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an army, navy or...
s what the Command Information Center is to a Navy
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
Warship
Warship
A warship is a ship that is built and primarily intended for combat. Warships are usually built in a completely different way from merchant ships. As well as being armed, warships are designed to withstand damage and are usually faster and more maneuvrable than merchant ships...
, plus a highly mobile and powerful radar platform. The system is used offensively to direct fighters to their target locations, and defensively in order to counter attacks by enemy forces, both air and ground. So useful is the advantage of command and control from a high altitude, the United States Navy operates AWAC aircraft off its Supercarrier
Supercarrier
Supercarrier is an unofficial descriptive term for the largest type of aircraft carrier, usually displacing over 70,000 long tons.Supercarrier is an unofficial descriptive term for the largest type of aircraft carrier, usually displacing over 70,000 long tons.Supercarrier is an unofficial...
s to augment and protect its Carrier Command Information Centers (CICs)
AEW&C is also known by the older terms "airborne early warning" (AEW) and "airborne warning and control system" (AWACS, icon ).
General characteristics
Modern AEW&C systems can detect aircraft from up to 250 miles (402.3 km) away, well out of range of most surface-to-air missiles. One AWACS plane flying at 30000 feet (9,144 m) can cover an area of 120460 square miles (311,990 km²). Three such aircraft in overlapping orbits can cover the whole of Central EuropeCentral Europe
Central Europe or alternatively Middle Europe is a region of the European continent lying between the variously defined areas of Eastern and Western Europe...
. In air-to-air combat, AEW&C systems can communicate with friendly aircraft, extend their sensor range and give them added stealth, since they no longer need their own active radar to detect threats. However, by the nature of radar, AWACS aircraft can be detected by opposing forces beyond its own detection range. This is because the outgoing pulse reduces in strength the further it travels. Therefore, a signal intended to reflect back must be strong enough to cover at least twice the distance between the sender and the target—more in practice due to absorption losses.
History of development
As part of their early use of radar, the British developed a radar set that could be carried on an aircraft for "Air Controlled Interception". The intention was to cover the North West approaches where German long range Fw 200 CondorFocke-Wulf Fw 200
The Focke-Wulf Fw 200 Condor, also known as Kurier to the Allies was a German all-metal four-engine monoplane originally developed by Focke-Wulf as a long-range airliner...
aircraft were a threat to shipping. A Vickers Wellington
Vickers Wellington
The Vickers Wellington was a British twin-engine, long range medium bomber designed in the mid-1930s at Brooklands in Weybridge, Surrey, by Vickers-Armstrongs' Chief Designer, R. K. Pierson. It was widely used as a night bomber in the early years of the Second World War, before being displaced as a...
bomber (serial R1629) was fitted with a rotating antenna array. It was trialled for use against aerial targets and then for possible use against German E boats. Another installation was a radar equipped Wellington used to direct Bristol Beaufighter
Bristol Beaufighter
The Bristol Type 156 Beaufighter, often referred to as simply the Beau, was a British long-range heavy fighter modification of the Bristol Aeroplane Company's earlier Beaufort torpedo bomber design...
s onto Heinkel He 111
Heinkel He 111
The Heinkel He 111 was a German aircraft designed by Siegfried and Walter Günter in the early 1930s in violation of the Treaty of Versailles. Often described as a "Wolf in sheep's clothing", it masqueraded as a transport aircraft, but its purpose was to provide the Luftwaffe with a fast medium...
s, which were air-launching V-1 flying bomb
V-1 flying bomb
The V-1 flying bomb, also known as the Buzz Bomb or Doodlebug, was an early pulse-jet-powered predecessor of the cruise missile....
s.
In February 1944 the U.S. Navy ordered the development of a radar system that could be carried aloft in an aircraft as Project Cadillac. A prototype system was built and flown in August on a modified TBM Avenger
TBF Avenger
The Grumman TBF Avenger was a torpedo bomber developed initially for the United States Navy and Marine Corps, and eventually used by several air or naval arms around the world....
torpedo bomber
Torpedo bomber
A torpedo bomber is a bomber aircraft designed primarily to attack ships with aerial torpedoes which could also carry out conventional bombings. Torpedo bombers existed almost exclusively prior to and during World War II when they were an important element in many famous battles, notably the...
. Tests proved successful, with the system being able to detect low flying formations at a range in excess of 100 miles (160.9 km). The U.S. Navy then ordered production of the TBM-3W, the first AEW aircraft to enter service. TBM-3Ws fitted with the AN/APS-20 radar entered service in March 1945, with some 36–40 eventually being constructed.
In 1958, the Soviet
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....
Tupolev Design Bureau
Tupolev
Tupolev is a Russian aerospace and defence company, headquartered in Basmanny District, Central Administrative Okrug, Moscow. Known officially as Public Stock Company Tupolev, it is the successor of the Tupolev OKB or Tupolev Design Bureau headed by the Soviet aerospace engineer A.N. Tupolev...
was also ordered to design an AWACS aircraft. After trying to fit the projected radar instrumentation in a Tu-95
Tupolev Tu-95
The Tupolev Tu-95 is a large, four-engine turboprop-powered strategic bomber and missile platform. First flown in 1952, the Tu-95 entered service with the former Soviet Union in 1956 and is expected to serve the Russian Air Force until at least 2040...
and a Tupolev Tu-116, the decision was made to use the Tu-114
Tupolev Tu-114
The Tupolev Tu-114 Rossiya is a turboprop-powered long-range airliner designed by the Tupolev design bureau and built in the USSR from May 1955....
fuselage instead. This solved the problems with cooling and operator space that existed with the narrower Tu-95 and Tu-116 fuselage. To meet the flight range requirements, the plane was fitted with an air-to-air refueling receiver. The resulting plane, the Tu-126
Tupolev Tu-126
|-See also:-Bibliography:*Duffy, Paul and Kandalov, Andrei. Tupolev: The Man and His Aircraft. Shrewsbury, UK:Airlife, 1996. ISBN 1 85310 728 X....
, was used by the Soviet Air Forces until it was replaced by the Beriev A-50
Beriev A-50
|-See also:Related development:Ilyushin Il-76, KJ-2000Comparable aircraft:E-3 Sentry-External links:* * * * * *...
in 1984.
National use
Many countries have developed their own AEW&C systems, although the Boeing E-3 Sentry and Northrop Grumman E-2 Hawkeye are the most common systems worldwide. The E-3 Sentry was built by the BoeingBoeing
The Boeing Company is an American multinational aerospace and defense corporation, founded in 1916 by William E. Boeing in Seattle, Washington. Boeing has expanded over the years, merging with McDonnell Douglas in 1997. Boeing Corporate headquarters has been in Chicago, Illinois since 2001...
Defense and Space Group (now Integrated Defense Systems
Boeing Integrated Defense Systems
Boeing Defense, Space & Security formerly known as Boeing Integrated Defense Systems is a unit of The Boeing Company responsible for defense and aerospace products and services. Boeing Integrated Defense Systems was formed in 2002 by combining the former "Military Aircraft and Missile Systems"...
) and is based on the Boeing 707-320
Boeing 707
The Boeing 707 is a four-engine narrow-body commercial passenger jet airliner developed by Boeing in the early 1950s. Its name is most commonly pronounced as "Seven Oh Seven". The first airline to operate the 707 was Pan American World Airways, inaugurating the type's first commercial flight on...
aircraft. 65 E-3 were built and it is operated by NATO and four nations. The specially designed Grumman E-2 Hawkeye entered service in 1965 and has been operated by eight different nations. Over 168 have been produced so far and new versions continue to be developed making it the most widely used AEW system. For the Japan Air Self-Defense Force
Japan Air Self-Defense Force
The , or JASDF, is the aviation branch of the Japan Self-Defense Forces responsible for the defense of Japanese airspace and other aerospace operations. The JASDF carries out combat air patrols around Japan, while also maintaining an extensive network of ground and air early warning radar systems...
, the E-3 technology has been fitted into the Boeing E-767
Boeing E-767
The Boeing E-767 is an airborne warning and control system aircraft. It was designed in response to the Japan Air Self-Defense Force's requirements, and is essentially the Boeing E-3 Sentry's surveillance radar and air control system installed on a Boeing 767-200.-Background:On September 6, 1976,...
.
After World War 2, the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...
deployed a substantial AEW capability with American Douglas AD-4W Skyraiders, designated Skyraider AEW.1, which in turn were replaced by the Fairey Gannet AEW.3
Fairey Gannet
The Fairey Gannet was a British carrier-borne anti-submarine warfare and airborne early warning aircraft of the post-Second World War era developed for the Royal Navy's Fleet Air Arm by the Fairey Aviation Company...
, using the same AN/APS-20 radar. When the Gannet was withdrawn, the Royal Air Force
Royal Air Force
The Royal Air Force is the aerial warfare service branch of the British Armed Forces. Formed on 1 April 1918, it is the oldest independent air force in the world...
(RAF) redeployed the radars from the Gannets onto Avro Shackleton
Avro Shackleton
The Avro Shackleton was a British long-range maritime patrol aircraft for use by the Royal Air Force. It was developed by Avro from the Avro Lincoln bomber with a new fuselage...
MR.2 airframes, redesignated Shackleton AEW.2. To replace the Shackleton AEW.2, an AEW variant of the Hawker Siddeley Nimrod, known as the Nimrod AEW3
British Aerospace Nimrod AEW3
The British Aerospace Nimrod AEW3 was a planned airborne early warning aircraft intended as to provide airborne radar cover for the air defence of the United Kingdom by the Royal Air Force...
, was ordered in 1974. However, after a protracted and problematic development, this was cancelled in 1986, and seven E-3Ds, designated
British military aircraft designation systems
British military aircraft designations are used to refer to aircraft types and variants operated by the armed forces of the United Kingdom.Since the end of the First World War, aircraft types in British military service have generally been known by a name British military aircraft designations are...
Sentry AEW.1 in RAF service, were purchased instead.
The Russian Air Force is currently using around 15–20 Beriev A-50 and A-50U "Shmel"
Beriev A-50
|-See also:Related development:Ilyushin Il-76, KJ-2000Comparable aircraft:E-3 Sentry-External links:* * * * * *...
in the AEW role. The "Mainstay" is based on the Ilyushin Il-76
Ilyushin Il-76
The Ilyushin Il-76 is a multi-purpose four-engined strategic airlifter designed by Ilyushin design bureau. It was first planned as a commercial freighter in 1967. Intended as a replacement for the Antonov An-12, the Il-76 was designed for delivering heavy machinery to remote, poorly-serviced areas...
airframe, with a large non-rotating disk radome on the rear fuselage.
These replaced the 12 Tupolev Tu-126
Tupolev Tu-126
|-See also:-Bibliography:*Duffy, Paul and Kandalov, Andrei. Tupolev: The Man and His Aircraft. Shrewsbury, UK:Airlife, 1996. ISBN 1 85310 728 X....
that filled the role previously.
The Indian Air Force
Indian Air Force
The Indian Air Force is the air arm of the Indian armed forces. Its primary responsibility is to secure Indian airspace and to conduct aerial warfare during a conflict...
ordered three IAI Phalcon
IAI Phalcon
The IAI EL/M-2075 Phalcon is an Airborne Early Warning and Control radar system developed by Israel Aerospace Industries and Elta Electronics Industries of Israel. Its primary objective is to provide intelligence to maintain air superiority and conduct surveillance...
systems in 2004, the first of which first arrived on May 25, 2009.
The Royal Australian Air Force
Royal Australian Air Force
The Royal Australian Air Force is the air force branch of the Australian Defence Force. The RAAF was formed in March 1921. It continues the traditions of the Australian Flying Corps , which was formed on 22 October 1912. The RAAF has taken part in many of the 20th century's major conflicts...
and the Turkish Air Force
Turkish Air Force
The Turkish Air Force is the aerial warfare service branch of the Turkish Armed Forces. It ranks 3rd in NATO in terms of fleet size behind the USAF and Royal Air Force with a current inventory of 798 aircraft .-Initial stages:...
are deploying Boeing 737 AEW&C aircraft. Unlike the E-2 and E-3, the Boeing 737 AEW&C does not use a rotating disk radome
Radome
A radome is a structural, weatherproof enclosure that protects a microwave or radar antenna. The radome is constructed of material that minimally attenuates the electromagnetic signal transmitted or received by the antenna. In other words, the radome is transparent to radar or radio waves...
(rotodome) but instead has a large dorsal fin. It will probably be marketed towards many existing E-2 customers, who would otherwise have no choice but to purchase a system intended for an aircraft carrier
Aircraft carrier
An aircraft carrier is a warship designed with a primary mission of deploying and recovering aircraft, acting as a seagoing airbase. Aircraft carriers thus allow a naval force to project air power worldwide without having to depend on local bases for staging aircraft operations...
, due to lack of options.
The Swedish Air Force
Swedish Air Force
The Swedish Air Force is the air force branch of the Swedish Armed Forces.-History:The Swedish Air Force was created on July 1, 1926 when the aircraft units of the Army and Navy were merged. Because of the escalating international tension during the 1930s the Air Force was reorganized and expanded...
use the S 100B Argus as their AEW platform. The S 100B Argus is based on the Saab 340
Saab 340
The Saab 340 is a discontinued Swedish two-engine turboprop aircraft designed and initially produced by a partnership between Saab and Fairchild Aircraft in a 65:35 ratio...
with an Ericsson
Ericsson
Ericsson , one of Sweden's largest companies, is a provider of telecommunication and data communication systems, and related services, covering a range of technologies, including especially mobile networks...
Erieye PS-890
Erieye radar
The Erieye radar system, is an Airborne Early Warning and Control System developed by Saab Microwave Systems of Sweden. It is based on the Active Electronically Scanned Array . The Erieye is used on a variety of aircraft platforms, such as the Brazilian Embraer E-99 or EMB-145...
radar.
The Hellenic Air Force
Hellenic Air Force
The Hellenic Air Force, abbreviated to HAF is the air force of Greece. The mission of the Hellenic Air Force is to guard and protect Greek airspace, provide air assistance and support to the Hellenic Army and the Hellenic Navy, as well as the provision of humanitarian aid in Greece and around the...
, Brazilian Air Force
Brazilian Air Force
The Brazilian Air Force is the air branch of the Brazilian Armed Forces and one of the three national uniformed services. The FAB was formed when the Army and Navy air branch were merged into a single military force initially called "National Air Forces"...
and Mexican Air Force
Mexican Air Force
The Mexican Air Force is the aviation branch of the Mexican Army and depends on the National Defense Secretariat . Since 2008, its commander is Gen...
use the Embraer R-99 with an Ericsson
Ericsson
Ericsson , one of Sweden's largest companies, is a provider of telecommunication and data communication systems, and related services, covering a range of technologies, including especially mobile networks...
Erieye PS-890 radar, as on the S 100B.
In early 2006, the Pakistan Air Force
Pakistan Air Force
The Pakistan Air Force is the leading air arm of the Pakistan Armed Forces and is primarily tasked with the aerial defence of Pakistan with a secondary role of providing air support to the Pakistan Army and the Pakistan Navy. The PAF also has a tertiary role of providing strategic air transport...
ordered six Saab 2000
Saab 2000
|-See also:-References:* Lambert, Mark. Jane's All The World's Aircraft 1993–94. Coulsdon, UK:Jane's Data Division, 1993. ISBN 0 7106 1066 1....
fitted with Erieye AEW systems from Sweden in a deal valued roughly $1bn. In December 2006, the Pakistan Navy
Pakistan Navy
The Pakistan Navy is the naval warfare/service branch of the Pakistan Armed Forces. Pakistan's Navy is responsible for Pakistan's coastline along the Arabian Sea and the defense of important civilian harbors and military bases...
requested three excess P-3 Orion
P-3 Orion
The Lockheed P-3 Orion is a four-engine turboprop anti-submarine and maritime surveillance aircraft developed for the United States Navy and introduced in the 1960s. Lockheed based it on the L-188 Electra commercial airliner. The aircraft is easily recognizable by its distinctive tail stinger or...
aircraft equipped with Hawkeye 2000 AEW systems, the overall cost of the program is $855mn. China and Pakistan also signed a memorandum of understanding (MoU) for the joint development of AEW&C systems. A total of $278m AWACS deal has been struck with China.
Some AEW systems feature additional command and control
Command and Control (military)
Command and control, or C2, in a military organization can be defined as the exercise of authority and direction by a properly designated commanding officer over assigned and attached forces in the accomplishment of the mission...
functionality, airborne warning and control system aircraft. These are often referred to as airborne early warning and control (AEW&C) systems.
Helicopter AEW systems
There are only four helicopter-based AEW platforms in existence. One is the Royal NavyRoyal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...
Sea King ASaC7
Westland Sea King
The Westland WS-61 Sea King is a British licence-built version of the American Sikorsky S-61 helicopter of the same name, built by Westland Helicopters. The aircraft differs considerably from the American version, with Rolls-Royce Gnome engines , British made anti-submarine warfare systems and a...
naval helicopter. It is operated from the Royal Navy's Invincible-class
Invincible class aircraft carrier
The Invincible class is a class of light aircraft carrier operated by the British Royal Navy. Three ships were constructed, , and . The vessels were built as aviation-capable anti-submarine warfare platforms to counter the Cold War North Atlantic Soviet submarine threat, and initially embarked...
aircraft carrier
Aircraft carrier
An aircraft carrier is a warship designed with a primary mission of deploying and recovering aircraft, acting as a seagoing airbase. Aircraft carriers thus allow a naval force to project air power worldwide without having to depend on local bases for staging aircraft operations...
s. The creation of Sea King ASaC7, and earlier AEW.2 and AEW.5 is the consequence of the harsh lessons learnt by the Royal Navy in the 1982 Falklands War
Falklands War
The Falklands War , also called the Falklands Conflict or Falklands Crisis, was fought in 1982 between Argentina and the United Kingdom over the disputed Falkland Islands and South Georgia and the South Sandwich Islands...
when the lack of AEW coverage for the task force was a major tactical shortcoming. Also, the Spanish Navy
Spanish Navy
The Spanish Navy is the maritime branch of the Spanish Armed Forces, one of the oldest active naval forces in the world. The Armada is responsible for notable achievements in world history such as the discovery of Americas, the first world circumnavigation, and the discovery of a maritime path...
fields the SH-3 Sea King in the very same role, operated from the carriers Principe de Asturias
Spanish aircraft carrier Principe de Asturias
The Príncipe de Asturias , originally named Almirante Carrero Blanco, is an aircraft carrier, the flagship of the Spanish Navy...
and Juan Carlos I
Another helicopter is the Russian-built Kamov Ka-31
Kamov Ka-31
|-See also:-External links:* *...
, deployed by Indian Navy on Krivak-III frigates
Krivak class frigate
The Project 1135 Burevestnik class were a series of frigates built for the Soviet Navy. These ship are commonly known by their NATO reporting name of Krivak and are divided into Krivak-I, Krivak-II, and Krivak-III classes.These ships were designed as a successor to the Riga class...
and reportedly used by the Russian Navy on its sole Kuznetsov aircraft carrier. It is fitted with E-801M Oko (Eye) airborne electronic warfare radar that can track up to 20 targets simultaneously with aerial detection range 90 mi (150 km) and surface warships up to 160 mi (250 km).
The most modern helicopter-based AEW is the AgustaWestland EH101
AgustaWestland EH101
The AgustaWestland AW101 is a medium-lift helicopter for military applications but also marketed for civil use. The helicopter was developed as a joint venture between Westland Helicopters in the UK and Agusta in Italy...
AEW of the Italian Navy
Marina Militare
The Italian Navy is the navy of the Italian Republic. It is one of the four branches of military forces of Italy; formed in 1946, from what remained of the Regia Marina . As of 2008, the Italian Navy had 35,200 active personnel with 180 commissioned ships, 19 Floating Docks, and 123 aircraft...
.
AWACS systems
Boeing/Westinghouse AWACS system
This is a specific system with a rotating radar dome "rotodome" radomeRadome
A radome is a structural, weatherproof enclosure that protects a microwave or radar antenna. The radome is constructed of material that minimally attenuates the electromagnetic signal transmitted or received by the antenna. In other words, the radome is transparent to radar or radio waves...
designed and built by Boeing
Boeing
The Boeing Company is an American multinational aerospace and defense corporation, founded in 1916 by William E. Boeing in Seattle, Washington. Boeing has expanded over the years, merging with McDonnell Douglas in 1997. Boeing Corporate headquarters has been in Chicago, Illinois since 2001...
(Defense & Space Group) using Westinghouse (now Northrop Grumman
Northrop Grumman
Northrop Grumman Corporation is an American global aerospace and defense technology company formed by the 1994 purchase of Grumman by Northrop. The company was the fourth-largest defense contractor in the world as of 2010, and the largest builder of naval vessels. Northrop Grumman employs over...
) radar. It is mounted on either the E-3 Sentry
E-3 Sentry
The Boeing E-3 Sentry is an airborne warning and control system developed by Boeing as the prime contractor. Derived from the Boeing 707, it provides all-weather surveillance, command, control and communications, and is used by the United States Air Force , NATO, Royal Air Force , French Air Force...
aircraft (Boeing 707
Boeing 707
The Boeing 707 is a four-engine narrow-body commercial passenger jet airliner developed by Boeing in the early 1950s. Its name is most commonly pronounced as "Seven Oh Seven". The first airline to operate the 707 was Pan American World Airways, inaugurating the type's first commercial flight on...
) or more recently a modified Boeing 767
Boeing 767
The Boeing 767 is a mid-size, wide-body twin-engine jet airliner built by Boeing Commercial Airplanes. It was the manufacturer's first wide-body twinjet and its first airliner with a two-crew glass cockpit. The aircraft features two turbofan engines, a supercritical wing, and a conventional tail...
. Only the Japanese Air Self-Defense Force has the 767 version, calling it the E-767
Boeing E-767
The Boeing E-767 is an airborne warning and control system aircraft. It was designed in response to the Japan Air Self-Defense Force's requirements, and is essentially the Boeing E-3 Sentry's surveillance radar and air control system installed on a Boeing 767-200.-Background:On September 6, 1976,...
.
Elta/Israeli Aircraft Industries (IAI) PHALCON radar
Israel has developed the IAI/Elta Phalcon system, which uses an AESA (Active Electronically Scanned Array) in lieu of a rotodome antenna. The system was the first such advanced radar placed into service. The original Phalcon was mounted on a Boeing 707Boeing 707
The Boeing 707 is a four-engine narrow-body commercial passenger jet airliner developed by Boeing in the early 1950s. Its name is most commonly pronounced as "Seven Oh Seven". The first airline to operate the 707 was Pan American World Airways, inaugurating the type's first commercial flight on...
platform and developed for the Israeli Defense Force and for export. A Boeing 707
Boeing 707
The Boeing 707 is a four-engine narrow-body commercial passenger jet airliner developed by Boeing in the early 1950s. Its name is most commonly pronounced as "Seven Oh Seven". The first airline to operate the 707 was Pan American World Airways, inaugurating the type's first commercial flight on...
Phalcon system was delivered to Chile in 1993 where it is known as the “Condor”.
The Phalcon AEW&C aircraft is based on four sensors: phased-array radar, phased-array IFF, ESM/ELINT and CSM/COMINT. When one of the sensors reports a detection, the system automatically initiates an active search of the complementary sensors.
The second generation improvement of the Phalcon system was accomplished in the development of the Israeli ground based IAI EL/M-2080
EL/M-2080 Green Pine
The EL/M-2080 Green Pine is an Israeli ground-based missile-defense radar produced by Elta, a subsidiary of Israel Aerospace Industries, to operate mainly with the Arrow theater missile defense system of Israel, which is jointly funded and produced with the United States...
"Green Pine" radar target tracking system used by the Israeli Defense Force. This system has been exported to several countries.
Israel has recently put in service a third generation variant of the Phalcon system on a highly modified Gulfstream G550 aircraft. Equipped with a more efficient and compact version of this airborne radar made by the ELTA division of Israel Aircraft Industries (IAI), the Gulfstream 550 CAEW is a long endurance, high altitude, rapid pop-up and descent system with unobstructed 360° coverage.
Israel Aircraft Industries (IAI) was marketing its Phalcon airborne early warning (AEW) system to China in competition with the British defense firm GEC-Marconi. In 1996 Tel Aviv and Beijing signed an agreement on purchasing the Phalcon radar system, which China insisted should be fitted onto Russian Ilyushin Il-76
Ilyushin Il-76
The Ilyushin Il-76 is a multi-purpose four-engined strategic airlifter designed by Ilyushin design bureau. It was first planned as a commercial freighter in 1967. Intended as a replacement for the Antonov An-12, the Il-76 was designed for delivering heavy machinery to remote, poorly-serviced areas...
aircraft. The Phalcon's triangular radar array would be mounted on the rear quarter fuselage of the Il-76 to provide full 360° scan coverage. Beijing was expected to acquire several PHALCON AEW systems, and reportedly could buy at least three more [and possibly up to eight] of these systems. But in July 2000 the United States pressured Israel to back out of a $1 billion agreement to sell China four Phalcon phased-array radar systems.
The India Air Force agreed in 2004 to purchase three systems for $1.1 billion. Russia and Israel on 10 October 2004 signed a tripartite agreement to facilitate the equipping of the Indian Air Force (IAF) with the Phalcon airborne warning and control systems. The IAF plans to mount the Phalcon radar and surveillance systems from IAI on Il-76 aircraft supplied by Russia. India received its first AWACS on 25 May 2009.
List of AEW&C aircraft types
Aircraft
- Airborne Surveillance PlatformAirborne Surveillance PlatformThe Airborne Surveillance Platform is an Indian defense project, initiated by the Defence Research and Development Organization, which aimed to produce an Airborne Early Warning System. Two prototypes were developed and flight tested for three years. The project was cancelled in 1999 after the...
- Avro Shackleton AEW.2Avro ShackletonThe Avro Shackleton was a British long-range maritime patrol aircraft for use by the Royal Air Force. It was developed by Avro from the Avro Lincoln bomber with a new fuselage...
- Beriev A-50Beriev A-50|-See also:Related development:Ilyushin Il-76, KJ-2000Comparable aircraft:E-3 Sentry-External links:* * * * * *...
Shmel - Boeing 737 AEW&C
- Boeing E-3 Sentry
- Boeing E-767Boeing E-767The Boeing E-767 is an airborne warning and control system aircraft. It was designed in response to the Japan Air Self-Defense Force's requirements, and is essentially the Boeing E-3 Sentry's surveillance radar and air control system installed on a Boeing 767-200.-Background:On September 6, 1976,...
- Boeing PB-1W Flying Fortress
- British Aerospace Nimrod AEW3British Aerospace Nimrod AEW3The British Aerospace Nimrod AEW3 was a planned airborne early warning aircraft intended as to provide airborne radar cover for the air defence of the United Kingdom by the Royal Air Force...
- Douglas AD-3W/4W/5W Skyraider
- DRDO AEW&CSDRDO AEW&CSThe Airborne Early Warning and Control System is a project being undertaken by India's Defence Research & Development Organization to develop an AWACS for the Indian Air Force.- Program details :...
- EADS CASA C-295 AEWEADS CASA C-295The EADS CASA C-295 is a twin-turboprop tactical military transport aircraft manufactured by Airbus Military in Spain.-Design and development:...
- Embraer R-99A Erieye
- Fairey Gannet AEW.3Fairey GannetThe Fairey Gannet was a British carrier-borne anti-submarine warfare and airborne early warning aircraft of the post-Second World War era developed for the Royal Navy's Fleet Air Arm by the Fairey Aviation Company...
- Grumman AF-2W Guardian
- Grumman E-1 Tracer
- Grumman E-2 Hawkeye
- Grumman TBM-3W Avenger
- HESA IrAn-140HESA IrAn-140|-See also:* Iran Aviation Industries Organization* Military of Iran* List of Iranian Air Force aircraft* Iranian military industry* Current Equipment of the Iranian Army-External links:* - Globalsecurity.org...
- IAI 707 PhalconIAI PhalconThe IAI EL/M-2075 Phalcon is an Airborne Early Warning and Control radar system developed by Israel Aerospace Industries and Elta Electronics Industries of Israel. Its primary objective is to provide intelligence to maintain air superiority and conduct surveillance...
/ Gulfstream G550 - IAI Eitam
- KJ-1 AEWCKJ-1 AEWCThe KJ-1 AEWC was a first generation Chinese AEW radar fitted to a Tupolev Tu-4 bomber. The project was started in 1969 under the code name "Project 926". The prototype aircraft is currently on display at the Chinese Aviation Museum in Beijing...
- KJ-200KJ-200KJ-200, or 'Y-8 Balance Beam' system, is an AEW&C program developed by Shaanxi Aircraft Corporation. The key component of this aircraft is a brand new airborne radar system, visually similar to the Ericsson Erieye AESA system, as well as ventral radar domes. The platform of this aircraft is based...
- KJ-2000
- Lockheed EC-121 Warning Star
- Lockheed EC-130V Hercules
- Lockheed P-3 AEW&C
- Saab 340 AEW&C (S 100 B/D Argus)
- Saab 2000 AEW&C
- Shaanxi Y-8 AWACS/Y-8J AEW
- Tupolev Tu-126Tupolev Tu-126|-See also:-Bibliography:*Duffy, Paul and Kandalov, Andrei. Tupolev: The Man and His Aircraft. Shrewsbury, UK:Airlife, 1996. ISBN 1 85310 728 X....
Helicopters
- AgustaWestland EH101AgustaWestland EH101The AgustaWestland AW101 is a medium-lift helicopter for military applications but also marketed for civil use. The helicopter was developed as a joint venture between Westland Helicopters in the UK and Agusta in Italy...
- Kamov Ka-31Kamov Ka-31|-See also:-External links:* *...
- Sikorsky SH-3H AEW
- Westland Sea King AEW.2 / AEW5 / ASaC7Westland Sea KingThe Westland WS-61 Sea King is a British licence-built version of the American Sikorsky S-61 helicopter of the same name, built by Westland Helicopters. The aircraft differs considerably from the American version, with Rolls-Royce Gnome engines , British made anti-submarine warfare systems and a...