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KJ-2000 AIRBORNE WARNING & CONTROL SYSTEM

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JANE'S DEFENCE WEEKLY - APRIL 21, 2004

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New 'Mainstay' AEW&C aircraft flying in China
Robert Hewson Editor Jane's Air-Launched Weapons
London
Additional reporting Martin Streetly Editor Jane's Electronic Mission Aircraft
London

Clear evidence has emerged that a significant Chinese airborne early-warning and control (AEW&C) development programme is now under way. AEW&C platforms, based on the Ilyushin Il-76, are now flying with the China Flight Test Establishment (CFTE).

Several photographs of these previously unknown aircraft have been released via Chinese sources in the same 'semi-official' way that the first images of the Chengdu J-10 fighter aircraft and other secretive Chinese defence projects have been leaked to outside observers. The images show aircraft carrying the badge of the CFTE, operating from Nanjing. No official information is available as to the status of the programme (or programmes) and observers are surprised at the level of advanced development that appears to have been reached.

Russia has already developed and deployed an Il-76-based AEW&C platform as the Ilyushin/Beriev A-50 and A-50M 'Mainstay'. At the end of the 1990s, China attempted to acquire a similar capability from Israel Aircraft Industries, as the A-50I, using Russian-supplied airframes mated with the Elta Phalcon phased-array radar system in a fixed (non-rotating) radome. A development aircraft was flown in Israel but the deal was halted in 2000 under intense US political pressure. Israel has been adamant that no AEW&C technology was transferred, although the bare A-50I airframe was handed over in 2002 to the Chinese authorities.

It should be noted that at least one of the aircraft seen flying in China has several key design features of the A-50I that are not found on Russia's 'Mainstays'. These include two ventral fins under the rear fuselage and the absence of the A-50's prominent fin-root intake.

Two different Chinese AEW&C configurations have been observed. It is not clear if both are flying simultaneously. There may have been a staged testing effort to prove the final radome configuration or there may be two parallel programmes, involving at least a pair of aircraft.

One set of photographs shows an aircraft with its circular dorsal radome supported by a large tri-cornered mast. This arrangement may indicate the presence of a fixed phased-array radar, using three antennas in a triangular arrangement to provide 360º coverage. An equivalent antenna layout was part of the original A-50I design. The second AEW&C configuration sees the radome sitting on two angled masts, similar to those of the existing A-50 design but with two horizontal bracing struts between the vertical supports. The radome on this aircraft appears to be deeper than that of a Russian A-50 - another pointer to the possible use of phased-array antennas in place of a rotating pulse-Doppler radar. Radar development for this programme may be the responsibility of the Nanjing Electronic Technology Research Institute (also known as the No 14 Institute), although there is a strong possibility of outside assistance, perhaps from Russia.

The origin of China's AEW&C aircraft remains unclear, as does their number. JDW reported that China was seeking to acquire Il-76s from Uzbekistan in 1997, although Russia is unlikely to have permitted this. By 2003 China was understood to be negotiating directly with Russia for the supply of a new A-50 variant, the A-50Eh (Ehksport, export). This programme, known as Project No 5, is thought to cover the lease of two test and evaluation A-50 aircraft to be followed by the acquisition of three to six A-50Ehs. The programme is reportedly due for completion by 2005 with each aircraft costing $180 million-$200 million. According to JDW sources, the A-50Eh radar is able to detect a cruise missile-sized target in ground/sea clutter at ranges of up to 463km.

Taiwanese sources allege that a secret A-50Eh deal was concluded with Russia last year. Taiwanese press reports also state that the A-50s have been exercising with People's Liberation Army Air Force Su-27 (J-11) and Su-30MKK aircraft. The sudden appearance of Chinese A-50s in the Nanjing Military Region, so near the Taiwan Strait, has caused consternation in Taiwan and represents a major shift in China's ability to conduct integrated offensive air operations
 
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Did the Iraqi's use their mainstays during gulf war 1 ?
 
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Did the Iraqi's use their mainstays during gulf war 1 ?

Huh? Do you mean the IL-76 transports? Why would they use transports? They never had the Russian A-50 rather they had a AD-hoc version of a radar system.

Iraq Il-76 AEW

Sadam Hussein and his generals knew that the USA were unlikely to ever sell him a workable AWACS, so instead he directed various Iraqi engineers to create their own using the Il-76 Candid airframe. The first version, known as the Baghdad 1, featured a French Thompson –CSF Tiger-G radar, built under licence in Iraq as the Salahuddin G, which was the mounted right at the rear of the fuselage below the tail. This was supported by a Rockwell-Collins IFF pod slung underneath, together with various electronic equipment from Selenia in Italy and Marconi in England. Thompson acted as the systems intergrator as well as building the fibreglass and composite radome that replaced the aircraft’s belly doors. However, although the Tiger-G was a sophisticated 2-D radar, it was designed to operate from the ground and nobody ever imagined anyone would seriously consider hanging the radar upside down inside the back of an IL-76 and try to use it as an AWACS system. A French engineer who saw the system commented, “ I don’t believe in it for an instant. The Tiger-G gives out so much heat when it turns, the people manning it in the back of the plane are going to fry after half and hour”. Unsurprisingly, the Baghdad 1 proved to be a complete failure. During Gulf War 1 the Baghdad 1 was flown out to Iran and was seen in 2003 on the ramp at Tehran-Mehrabad air base. Three other Iraq IL-76 aircraft were given the Adnan conversion, consisting of a more conventional rotodome above the fuselage, but this system was also a failure. Although one of the Adnan aircraft was destroyed on the ground at Al Taqaddum airfield on 23 Jan 91 during Gulf War 1, the two other aircraft managed to take refuge in Iran where they are believed to remain in storage at Shiraz air base.

http://www.spyflight.co.uk/mainstay.htm
 
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资料收集挺全的.空警-2000是很好的飞机.可惜平台不是我们的.
 
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The radar is designed by the Research Institute of Electronic Technology (also more commonly known as the 14th Institute) at Nanjing, and it utilizes the experience gained from the 14th Institute's earlier indigenously developed Type H/LJG-346 SAPARS (Shipborne Active Phased Array Radar System) that was completed in 1998 (the same Type H/LJG-346 SAPARS was also the predecessor of the active phased array radar system onboard PLAN Lanzhou class destroyer). Chinese claim that the domestic radar is superior to the Israeli radar and it can track more targets at greater range. The radar is arranged in the same way as that of A-50I.

phalcons antenna on il-76 does not rotate as it is an aesa but kj-2000 is pesa and thus it rotates,this will make it more maintanance intensive.e-3 also uses pesa and thus are less capable than phalcon......

KJ-2000 Airborne Warning & Control System

Last updated: 21 December 2007 Search


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See Also

IL-76MD Jet Transport
IL-76MD Specifications







The KJ-2000 (KongJing-2000) airborne warning and control system (AWACS) is based on the Russian-made A-50 (NATO codename: Mainstay) airframe outfitted with Chinese-made electronically steered phased-array (ESA) radar and C3I system developed by Nanjing Research Institute of Electronic Technology (also known as 14 Institute). Xi’an Aircraft Corporation (XAC) is building additional KJ-2000s by converting existing IL-76MD transport aircraft in PLAAF service. The aircraft entered operational service in 2006/07.


The PLA has been investing heavily in the past decade to develop its airborne early warning capability. A number of designs have been introduced in recent years, with the KJ-2000 being the advanced and capable. 4~6 systems like this would enable the PLA to build a sophisticated regional command, control, communications, computers, intelligence, surveillance, reconnaissance (C4ISR) system that could be used to support both defensive and offensive operations.
KJ-2000 prototype on final approach before landing
(Chinese Internet)


A-50I Phalcon Programme
The first example of the A-50I spotted at the Israeli Tel Aviv Airport in Summer 2000 (Chinese Internet)



China started a three-way talk with Israel and Russia, the country’s two traditional suppliers of weapon systems and technologies, in 1994 for a possible purchase of advanced AWACS aircraft. The project involved acquisition of the Russian-made Beriev A-50 Mainstay Airframe, and to fit it with the Phalcon airborne early warning (AEW) radar and associated C3I system developed by Israeli Aircraft Industries Ltd (IAI). In 1996 China, Russia, and Israel reached initial agreement on a US$250 million deal to supply one such AWACS aircraft to the PLA Air Force (PLAAF).

In May 1997, Israel and Russia reached agreement on modifying one A-50 for $250 million, with the option of three more AWACS for a total cost of $1 billion. Russia secured about 20 percent of the deal. After some delay, in October 1999, Russia transferred an A-50 airframe to Israel for the installation of the Phalcon AEW radar system. By May 2000, Israel had nearly completed work on the aircraft under the designation A-50I.

The Phalcon deal became an increasingly controversial issue between the United States and Israel. In 2000, the Clinton Administration voiced stronger objections to the sale and urged Israel to cancel the sale of the Phalcon, saying it is a system comparable to the U.S. AWACS and could collect intelligence and guide aircraft from 250 miles away. Finally, in July 2000 the Israeli government cancelled the deal with China.

KJ-2000 Programme
KJ-2000 in the CFTE livery (Chinese Internet)



China reacted to the U.S. interfering in the A-50I deal by starting a domestic programme to develop its own active phased-array radar. The radar development was carried out by 14 Institute based in Nanjing, Jiangsu Province. The Israeli-made Phalcon radar and other onboard electronic systems were retrieved from the unfinished A-50I, and the airframe was handed to China via Russia in 2002. Modifications on the airframe began in late 2002 to install the Chinese-made airborne radar system at XAC. The aircraft, designated KJ-2000, made its first flight in November 2003.

A total of four planes (B-4040, B-4041, B-4043, and CFTE #762) have been produced so far. One of the examples is fitted with an aerial refuelling probe on its nose, presumably based on the A-50I airframe delivered from Russia. The refuelling probe is missing on other examples, suggesting that they may have been converted from the existing IL-76MD transport aircraft operated by the PLAAF since the early 1990s.

Following some extensive flight testing at China Flight Test Establishment (CFTE) in Yanliang, Shaanxi Province and radar system testing at an airbase near Nanjing, Jiangsu Province, the aircraft entered operational service in 2006/07 and have been stationed in Zhejiang Province.

By 2007, at least four KJ-2000s (30071, 30072, 30073, 30074) had been delivered to the PLAAF 26th Air Division based in eastern China.
KJ-2000 in operational service with the PLAAF
(Chinese Internet)


Aircraft

The KJ-2000 has five flight crew and possibly 10~15 mission crew. The aircraft carries out patrol missions at an altitude of 5,000~10,000m. The maximum flight range of the aircraft is 5,000km and the flight endurance is 7 hours 40 minutes. At a range of 2,000km, the aircraft can remain on patrol for up to 1 hour 25 minutes.

The A-50 airframe, developed and manufactured by the Beriev Aircraft Research and Engineering Complex Joint Stock Company based at Taganrog in the Rostov Region of Russia, was derived from the Ilyushin IL-76 jet transport aircraft, distinguished by the large, non-rotate radome containing the phased-array radar antenna; the solid nose replacing the original ‘glass-in’ nose, and a large number of electronic system antennas on the front section of the fuselage.

Radar

The primary radar system housed in the radome is an three-sided electronically steered phased-array (ESA) developed by Nanjing-based 14 institute. Unlike the Russian A-50 or U.S. E-3, which rotate their rotodomes to give a 360 degree coverage, the KJ-2000's radar antenna does not rotate. Instead, three ESA antenna modules are placed in a triangular configuration inside the round radome to provide a 360 degree coverage.

The Chinese-made radar system could be similar in design to the IAI Phalcon, but may not be as capable as the latter. The Phalcon system could track up to 60~100 targets at the same time and guide a dozen fighters in all-weather, day and night operations.
KJ-2000 Airborne Warning & Control System (AWACS) - SinoDefence.com
 
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I have read that artical at least three time and I don't understand what you are trying to say :undecided:. You say that the radom rotates but the artical from Sinodefence clearly states that is dose not rotate.
Please read the part where it says Radar.
 
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If we are to go for it how would our color schme look like?
 
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Sorry to rain on your parade was but that aircraft will probably not even entir service. The aircraft was tragically distroyed and all of its crew members died along with it. There were about 40 scientists and engineers that were working on this project, but now it seems that the project could be cancelled.
 
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