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JF-17 Thunder Multirole Fighter [Thread 7]

Obviously. I have the propensity to call spade a spade, leading to be labeled as a 'hard nut to crack' ;)

I simply tend to speak what others don't necessarily want to hear, but need to anyways :D
JF-17 IAF slayer
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NRIET’s KLJ-7A Multi-Mode AESA Radar for JF-17 Block III
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The KLJ-7A multi-mode X-band jamming-resistant Active Electronically Scan Array (AESA) radar developed by the Nanjing Research Institute of Electronics Technology (NRIET) based in Jiangsu Sheng provice, China.
The KLJ-7A is the proposed AESA radar to be installed on the JF-17 Thunder Block III single engine fighter jet, which is operated by the Pakistan air force, says NRIET’s head Hu Mingchun in a China Daily report. A mockup of the KLJ-7A was displayed by NRIET at the Zhuhai air show 2016. Nanjing Research Institute of Electronics Technology (NRIET) is also the designer and manufacturer of the radars of J-10, J-11B, J-15 and J-20 stealth fighter.

Russian radar manufacturer Phazotron and NIIP had worked closely in the past with the Chinese radar design bureaus and provided technical assistance as well as operational models of Russian-made radar sets that were used as benchmarks in the process of these Chinese firms developing their own design.
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“Our product will tremendously extend the fighter jet’s detection range, giving it a much longer sight that will help it detect the enemy’s aircraft before they do, and this is very important because in real combat if you see first, you fire first,” says NRIET’s head Hu Mingchun.

The KLJ-7A AESA radars provide key defensibility gains against electronic warfare (EW) jamming and enemy radar detection. The AESA radars utilize many arrays — i.e. transmit and receive modules (TRM) — that can each transmit in a different frequency. In unison, these TRMs enable a single AESA radar unit to transmit in different frequencies simultaneously.

The KLJ-7A radar eliminates the former antenna and transmitter, preserves the latter’s control system and display system, and upgrades the processor. The radar is analogous to Raytheon AN/APG-63(V2) AESA radar. KLJ-7A incorporates the versatility, simplify logistics and reduce costs.

East Pendulum reported citing NRIET deputy director Wang Hongzhe that the KLJ-7A has a range of 170 km against aerial target with 3m² RCS (radar cross-section) or 200 km against aerial target with 5m² RCS. It can track 15 targets and engage four simultaneously. Though equipped with 1,000 TRMs, it is not known if the KLJ-7A’s TRMs are built from gallium arsenide (GaA) or gallium nitride (GaN).

The PAF’s JF-17s are equipped with the SD-10 beyond-visual range (BVR) air-to-air missile (AAM) and C-802 anti-ship missile (AShM). The KLJ-7A will provide guidance for the SD-10 BVR missile and C-802 Anti-ship missile at the pre-terminal phase to home into the target.

The KLJ-7A will therefore provide about 55% more detection distance in comparism to previously used mechanically scanned array radar. The radar also has at least 11 modes of operation including SAR imaging, Air-to-Air, Air-to-Ground and Air-to-Sea mode.

The radar combined three modules on the back of the radar — the power supply, the computer and the cooling cell.The antenna and the computer module are liquid cooled, as is marked on the housing. The cooling systems reportedly perform better than the cooling systems of Russian-made Zhuk-AE radar.

Notes
The JF-17 is the mainstay fighter of the Pakistan Air Force (PAF) and is co-produced by Pakistan Aeronautical Complex (PAC) and the Aviation Industry Corporation of China (AVIC). Pakistan and China’s export firm CATIC have actively promoted the JF-17 Fighter Jet on the international market for years. Myanmar Air Force and Nigerian Air Force currently placed order for JF-17 Block II aircraft. The PAF is also hoping to eventually manufacture AESA radars domestically at PAC.
 
I think SA-6, SA-3, SA-5 / S200, SA-13, SA-18, possible S400 triumf, IGLA series. Quite a few.
They have already all of them other then S-400 and they are facing logistic problem with older system.
S-400 will be game changer.
 
KLJ-7A 3-aerial AESA radar has 300° field of view
China Electronics Technology Company’s (CETC) No. 14 Research Institute said in a press statement on Nov. 9 that its KLJ-7A 3-aerial AESA fire control radar has a 300° field of view (FOV).

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This allows the fighter to act as an airborne early warning platform as well.

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NRIET KLJ-7A AESA Radar
First, an improved version of the KLJ-7A from Nanjing Research Institute of Electronics Technology (NRIET). The KLJ-7A was originally revealed during Airshow China 2016 as a proposed AESA radar for the Block-III.

As per reports at the time, the KLJ-7A could detect ‘fighter-sized’ targets at up to 170 km, simultaneously track up to 15 targets, and engage four of them at once. The KLJ-7A is said to have more than 1,000 solid-state transceiver modules (TRM), providing it with much improved resistance to electronic warfare (EW).

However, the variant of the KLJ-7A apparently shown at Airshow China 2018 was equipped with slanted side-panel arrays on both sides, thus providing a wider detection range without the need for a mechanical arm or swashplate to move the main array. In addition, NRIET also unveiled a KLJ-7A variant with a moving array, it is possible that this version is meant to be a lower-cost alternative to the multi-array version.

LETRI LKF601E Air-Cooled AESA Radar
Second, AVIC officially unveiled its proposed air-cooled AESA radar – the LKF601E. Interestingly, the radar shares the same performance specifications of the KLJ-7A (albeit based reports from 2016), i.e., the ability to detect ‘fighter-sized’ targets at 170 km, track 15 targets and engage four simultaneously.

According to LETRI, the LKF601E’s synthetic aperture radar (SAR) offers “high-resolution real-time imaging capability” with ground-moving target indication (GMTI). In other words, the LKF601E can lock onto tanks and other moving vehicles and engage them with radar-guided air-to-ground missiles (AGM). The radar’s SAR has a capture resolution of 1m2. In terms of air-to-sea, it has a range of 200-220 km.

Developed by the 601 Institute – i.e., Leihua Electronic Technology Research Institute (LETRI) – the radar is marketed as readily compatible with the JF-17, including, apparently, the Block-I and Block-II. In fact, a marketing video clearly shows LETRI engineers installing the LKF601E to a JF-17 prototype.

Compatibility with the JF-17 Block-I and Block-II is significant.
Firstly, it confirms that an AESA radar can be installed onto the JF-17 with relatively limited changes to the fighter. This removes a previously-held concern about AESA radars being too heavy and too power-hungry for the lightweight fighter (at least without significant changes to the fighter).

Secondly, the availability of the LKF601E implies that the PAF can proceed with upgrading its Block-I and Block-II fleet without necessarily having to remanufacture the fighters into Block-IIIs. Of course, the PAF could potentially opt for the latter route in the long-term.

The PAF has yet to officially reveal which radar it selected for the Block-III. However, considering that the previous PAF Chief of Air Staff (CAS) announced that the Block-III’s design was “frozen”, the radar decision has been made. Based on AVIC’s marketing video, one can confirm that at least the LKF601E was fitted to the JF-17, but it is unclear if that necessarily applies to the Block-III.
 
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