The KJ-2000 development program started after the cancellation of the A-50I deal with Russia and Israel in July 2000 due to strong American pressure against the export of the Israeli EL/M-2075 Phalcon radar that was to be mounted. Denied of import options, China then went on to develop a domestic AWACS and the first aircraft made its maiden flight in 2003.[2]
Four KJ-2000 aircraft have been identified so far, but production of new aircraft will likely be delayed, dependent on the acquisition of Il-76 airframes. Currently, the Russian defense exporter Rosoboronexport has imposed a significant price hike on all future Il-76s delivered to China and India despite previous contracts. Both countries were in negotiation with Russia regarding this matter as of early 2008.[4] In March 2011, Sino-Russian negotiations reached a new agreement to move production of Il-76s to Chinese-owned companies. In this way it is expected production can be run smoothly to supply China with new Il-76 airframes, while delivery of Soloviev D-30KP-2 engines is not affected by recent[when?] issues.[4]
However, due to the unreliability of external suppliers, China has developed a backup design known as the KJ-200 by installing a simplified system on board the smaller Shaanxi Y-8 airframe, the Chinese domestic variants of Antonov An-12tactical airlifter. The KJ-200 has a similar configuration to that of the KJ-2000 and is characterized by the triple tail-fin configuration (one large and two small), but with a "balance beam" lateral-scanning array similar to the SaabErieye instead of a disc radome. China also went on to develop the Shaanxi Y-9, an enlarged upgrade of the Y-8 that later served as the basis of the third-generation KJ-500 AEW&C aircraft; and the Xian Y-20, a large strategic airlifter that is being developed for AEW&C modification.
Design
The Chinese AWACS has a phased array radar (PAR) system carried in a disc-shaped radome. Unlike the American E-3 Sentry and the Russian Beriev A-50, two AWACS aircraft comparable in size and both with a 9-metre-diameter (30 ft) rotating radome (rotodome) to provide 360‑degree scanning, the radome of the Chinese AWACS is stationary. Instead, the three PAR modules are placed in an equilateral triangle configuration inside the 14-metre-diameter (46 ft) round radome, each covering a 120-degree spherical sector to provide full 360‑degree coverage.
The multi-function, three-dimensional pulse-Doppler radar was developed by the Nanjing Research Institute of Electronics Technology (NRIET), a subsidiary of the China Electronics Technology Group Corporation (CETC). It is designed to detect and track airborne and surface targets,[5] operating in the frequency range of 1200–1400 MHz, and has a maximum aerial detection range of 470 km (290 mi).
KJ-3000
A new variant with a fixed next-generation radar was reportedly spotted in 2013.[6]
Operational history
The PLAAF's first AWACS regiment was established at a small and remote airfield in southern China, for security reasons, during late 2004. The commander appointed to the regiment was Zhang Guangjian (张广建), a pilot with over 6,000 hours of flight time on various aircraft including the Il-76. The base was re-built and re-equipped for handling the KJ-2000, the first of which reached the base in 2005. A mixed fleet of KJ-2000 and the smaller KJ-200 have been operated at the base.[7]
In 2013 a 24-hour coverage drill was held using three KJ-2000s that covered NW China, the East China Sea, and the South China Sea.[7]
Since Il-76s are supplied by Russia and as the numbers are limited, China is seeking to replace the Il-76 platform currently used by the KJ-2000 with the Y-20.[8]
