JFT radar prototype also known as KLJ-1 or Type 1471.....
j82_radar_2.jpg picture by nexeltroop - Photobucket
Description of original klj- radar....
"Although the jet is not new, but avionics displayed at this Zhuhai Airshow is. For J-8IIM, it was originally equipped with Zhuk-27, and at this Airshow, China displayed the new domestic radar (the computer generated pic with radar shown subsystem modules), which is geared toward western standard.
The comparison, however, was made to the original Russki radar Zhuk-8II (pic the radar on the aircraft) on J-8II instead of the newer Russki Zhuk-27 on J-8IIM, but here is the improvement:
1. All Zhuk radars are for Russki standard of handling target with 5 square meters radar cross section (RCS), the standard for west is 3 square meters. The domestic Chinese radar has a range of 75 km max for targets with 3 square meters, in comparison to Zhuk-8II's 70 km max against target of 5 square meters.
2. Addition of ability to handle sea-borne target that Zhuk-8II does not have. For sea targets with 50 square meters RCS, the max range is
> 100/80 km for sea state 1/2.
3. Simultaneously tracking 10 targets and display 8 most threatening ones out of the 10 on displays, engaging 2 out the 8.
4. Air-to-Air modes: VS (Velocity Search), RWS (Recon./Search while Scan), TWS (Track While Scan), STT (Single Target Tracking), Air Combat Mode (ACM). MTI, (aerial Moving Target Indication) mode which is used to discover hovering helicopters can be added upon customer request, though this does not come as standard feature. This extra function is what Zhuk-8II does not have.
5. Air-to-Ground modes: Mapping (Real Beam Mapping RBM), Mapping Expansion/Freezing (EXP/FRZ), Doppler Beam Sharpening (DBS), Ground Moving Target Indication (GMTI), Sea Single Target Tracking (SSTT), Air-to-Ground Ranging (AGR). Only the last function is possessed by Zhuk-8II.
6. Beacon Navigation (BCN) and Weather (WX).
The J-8IIM is built on the standard of USA standards MIL-STD-1553B (for Flight-by-wire) and MIL-STD-1760 (Weaponry interface), so that western avionics and weaponry can be added directly without any rework. Compatibility of USA MIL-STD-1773 (for flight-by-light) and MIL-STD-1787 (for fixed wing aircraft display symbology are also ready, and can be included upon customer request.
However, dispite such improvements, the ancient design was rejected by Pakistan Air Force when Shengyan Aircraft Factory tried to sell it to Pakistan.
The display shown at Zhuhai was monochrome, but can be replaced by color LCD MFD upon customer request, and those displays were made by ISO-9000 series certified facotries in the city of Su1-Zhou1, Jiang1-Su1 Province. (A great achievement, not many purely domestic Chinese enterprises can pass the ISO-9000 series certification).
From the info provided, this domestic Chinese radar appear to be have the similar performance of AN/APG-65 onboard F-18A/B, though it is much heavier than the USA counterpart."
