The KJ-200 (Chinese: 空警-200; pinyin: Kōngjǐng Liǎngbǎi; literally: “Airwarn-200”) NATO reporting name: Moth or Y-8 Balance Beam system, is an Airborne early warning and control (AEW&C) program developed by Shaanxi Aircraft Corporation. (KJ is from the first characters of the Pinyin spelling of 空警, (Kōng Jǐng), short for 空中预警 (Kōng Zhōng Yù Jǐng), which means Airborne Early Warning).

The key component of this aircraft is an AESA radar system, visually similar to the Saab Erieye system, mounted on struts above the rear fuselage, as well as ventral sensor domes. The platform of this aircraft is based on the Shaanxi Y-8F-600 and it has been reported that Pratt & Whitney Canada PW150B turboprops and Honeywell avionics have been incorporated.

The general designer of the KJ-200 is Ouyang Shaoxiu (欧阳绍修), the same general designer of the Y-8. According to Ouyang the KJ-200 has been significantly modified (around 80%) from the original Y-8. including the adoption of a glass cockpit.

The project experienced a major setback in 2006, when a KJ-200 crashed into a mountain in Guangde County while undergoing tests.

During the National Day of the People’s Republic of China military parade 1 October 2009, a KJ-200 took the role as a lead aircraft.

In February 2017 a US Navy Lockheed P-3 Orion and a KJ-200 inadvertently came close to each other over the South China Sea. The aircraft were within 1,000 feet (305 meters) of each other.

It is believed 11 have been built.

The Shaanxi KJ-500 (Chinese: 空警-500; pinyin: Kōngjǐng Wǔbǎi; literally: “Air Warning 500”) is a third-generation airborne early warning and control (AEW&C) aircraft used by the Chinese People’s Liberation Army Air Force. It was built by Shaanxi Aircraft Corporation, and is based on the Y-9 airframe.

China started the development of the KJ-500, its third AEW&C, in the late 2000s. The KJ-500 was required to have good detection capability, good identification ability, and quick responsiveness. The KJ-500 was also required to be the core force of the information combat system, its equipped technology has four major characteristics, which are networking, multi-functionality, high-integration, and lightweight.

The aircraft carries a fixed dorsal radome containing three AESA radar arrays for 360-degree coverage, and is said to be more efficient than the two-planar ‘balance beam’ array design used on the earlier KJ-200. Production of older AEW&C types reportedly ceased production in 2018 in response to the KJ-500 reaching full operational capability.

The KJ-500 is the base variant with the KJ-500A improved variant with an aerial refuelling probe debuted at the Zhuhai Airshow 2022.

Max speed: 550 km/h
Max range: 5700 km
Max endurance: 12 h
Max takeoff weight: 77 tons
Range against fighter sized targets: 470 km