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JF-17 Block III's proposed AESA Radar KLJ-7A

Written by Henry KENHMANN
Et si la vision du monde est "biphasée" ? SSDD | 1 novembre 2016 SSDD | November 1, 2016

Pour la première fois depuis 20 ans, un radar à antenne actif (AESA) pour avion de chasse est présenté au Salon aéronautique de Zhuhai par un industriel chinois. For the first time in 20 years, an active antenna radar (AESA) for fighter aircraft is presented to the Zhuhai Airshow by a Chinese manufacturer.
Sa référence, le KLJ-7A . His reference, the KLJ-7A. Certains entre vous vont la trouver familier et c'est normal, puisque l'avion de chasse FC-1 / JF-17 de l'armée de l'air pakistanaise, qui est conçu par l'Institut 611 à Chengdu, est équipé d'un radar à balayage mécanique connu sous la référence de KLJ-7 V2. Some of you will find it familiar and this is normal, since the fighter FC-1 / JF-17 Pakistan's air force, which is designed by the Institute 611 in Chengdu, is equipped a mechanical scanning radar known as the reference KLJ-7 V2.
Dans une conférence de presse organisée par l'Institut NRIET du groupe CETC au 31 Octobre, son directeur adjoint a touché quelques mots sur ce radar à AESA pour avion de chasse et sur plusieurs radars capables de tracer les avions furtifs. In a press conference organized by the Institute NRIET ECCC group to October 31, deputy director touched briefly on this EASA radar for fighter aircraft and several radars able to track stealth aircraft.
« Le KLJ-7A qui fait sa première apparition publique dans ce salon a une portée de combat de 170 kilomètres », souligne WANG Hongzhe (王宏哲), « Cette portée est équivalente à (celle du radar de) F-35 , et c'est surtout réalisé sur un radar ayant un volume beaucoup plus petit en comparaison. "The KLJ-7A made its first public appearance in this living room has a combat range of 170 kilometers," says Wang Hongzhe (王宏哲), "This range is equivalent to (that of the radar) F-35, and c ' is especially made on a radar having a much smaller volume in comparison. » "
Interrogé sur la question de savoir si le radar à AESA de le dernier avion de chasse chinois J-20 est plus performant que celui-ci, le directeur adjoint de NRIET sourit : « A votre avis… ? Asked about whether the radar AESA of the last Chinese fighter J-20 is better than the latter, the deputy director of NRIET smiled: "In your opinion ...? » "
A noter que le chiffre de 170 kilomètres en portée de KLJ-7A devrait être obtenu en mode Air-Air, sur une cible standard d'une SER de 5 m². Note that the figure of 170 kilometers in range of KLJ-7A should be obtained in air-air mode, a standard target of RCS 5 m².
Étant donné sa petite taille (~ Ø600 mm) et sa référence officielle, il est plus que probable que le KLJ-7A soit développé pour la version Block III de JF-17, qui envisage justement de remplacer son radar actuel par un radar à AESA. Given its small size (~ Ø600 mm) and its official reference, it is likely that the KLJ-7A is developed for the Block III version of JF-17, just considering replacing its current radar by an AESA radar .
Si cela se confirme, le KLJ-7A va offrir environ 55% de distance de détection supplémentaire à l'avion pakistanais mis à niveau, donnant ainsi un avantage tactique très intéressant et va lui permettre d'employer d'autres types de munition à longue portée. If confirmed, the KLJ-7A will provide about 55% more sensing remote Pakistani aircraft upgraded, giving a tactical advantage very interesting and will allow him to use other types of long-munition scope.
On connait encore peu sur ce nouveau radar à AESA chinois, comme son poids, la puissance d'émission moyenne, le MTBF ou encore le type de matériaux (GaAs ou GaN) utilisé pour les MMIC par exemple. We still know little about this new AESA radar in Chinese, as its weight average transmit power, MTBF or the type of materials (GaAs or GaN) MMIC used for example.
En revanche, on sait qu'il peut suivre 15 cibles et en engager 4 simultanément en mode Air-Air, contre 10 et 2 pour son prédécesseur à balayage mécanique. However, we know that it can track 15 targets and engage four simultaneously in air-air mode, 10 against and 2 for its mechanical scanning predecessor. Le radar dispose également au moins 11 modes de fonctionnement dont l'imagerie SAR, le mode Air-Sol et Air-Mer. The radar also has at least 11 modes including SAR imagery, Air-ground mode and Air-Mer.
Sur ces photos prises en avant-première au stand de NRIET, on peut voir trois modules à l'arrière du radar – l'alimentation, le calculateur et la cellule de refroidissement. In these photos taken in preview at NRIET stand, we can see three modules in the back of the radar - the food, the computer and the cooling cell. L'antenne et le module de calculateurs sont refroidis par liquide, comme ce qui est marqué sur le boîtier. The antenna module and calculators are cooled by liquid, such as what is marked on the case.
Le plupart des radars embarqués en Chine, que ce soit pour les avions de chasse ou les AWACS, sont développés par l'Institut 14 (NRIET), l'Institut 38 ou l'Institut 607. Les deux premiers sont filiales du groupe électronique chinois CETC, tandis que le dernier est une filiale du groupe aéronautique AVIC. The most onboard radar in China, whether for fighter planes and AWACS, developed by the Institute 14 (NRIET), Institute 38 or 607. Institute The first two are subsidiaries of Chinese electronics group ECCC, while the latter is a subsidiary of the AVIC aeronautics group.
Les radars de J-10 , J-11B et J-15 par exemple sont conçus par le NRIET, et celui de J-16 par l'Institut 607. Si les rumeurs disent vrai et le nouveau radar de J-20 est réellement développé le NRIET, on pourra sans doute en apprendre plus durant ce Salon de Zhuhai, où la présence de J-20 est désormais confirmée par l'armée de l'air chinoise . Radars J-10, J-11B and J-15, for example, are designed by the NRIET, and the J-16 by the Institute 607. If the rumors are true and the new radar J-20 is actually developed the NRIET, we can probably learn during this Exhibition in Zhuhai, where the presence of J-20 is now confirmed by the army of the Chinese air .
Written by Henri KENHMANN
 
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You know how many Jewish we protect from Nazi in my hometown Shanghai during WW2? Many of their descendent been now in high rank
dont play the religion card with me, it doesn't work, i dont care who or what you are.
 
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I don't know why but it seems that generally across the board a general abrasiveness, intolerance and a "at your face" attitude seems to be the order of the day to promote one's point of view. There are more civil ways to conduct ones self in a discussion forum.
 
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is this AESA in ready shape [tested and tried]? If it is then why we are not inducting this awesome capability in Block 2s?
 
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what i would like to tell most of you that radar performance, maximum detection, search, track, and intercept ranges are highly subjective, and depend on environment, and target aspect. When a system comes to a theatre, such as when we inducted Grifo, it took some time to characterize the system in our environment. While FIAR did a good job in studying our sub clutter visibility and second time turn around problems prior to giving us the system, it still took a while for the system to "settle" in. Same will be the fate of whatever E-SCAN system coming to Pakistan. It will be developed, trialled, tweaked, upgraded, and will keep on growing.

If you go back sometime, i predicted that for the Block III, PAF will prefer a detection suite that comes with an integrated EW suite. This made the choice obviously NRIET, since the Selex (previously BAE Avionics in Edinburgh) is not likely to part with the Captor's integrated EW suite of EFT.

That said, PAF is ambitious enough to induct more than one AESA, whichever comes its way.

is this AESA in ready shape [tested and tried]? If it is then why we are not inducting this awesome capability in Block 2s?

The requirement of air intercept is clearly met with KLJ7, which is a beautifully reliable system. The only weak link in the system was the Chinese TWT, which was replaced by a French tube. KLJ7 is currently one of the most reliable air intercept radar in operation in Pakistan.

With the reliability of KLJ7, and the vast numbers in operation, there is no need for fleet vide development. Only the air superiority squadrons shall require AESA.
 
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Bro dnt be ashamed . we all are learner . if we ask then we learn . ignote it and try to learn :-)
 
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