والله أنا برجح "الصين" عشان مرونتهم فى البيع ونقل التكنولوجيا بالذات وهو الأهم يعنى مثلاََ KJ-500 مزودة برادار AESA أفضل ما سابقه المركب على ال KJ-2000 إلى مداه كان حوالى 470 كم وعندك ال KJ- 200 شبيهة الساب السويدية وأيضاََ برادار AESA ..
ed array (AESA) technoloThe Chinese AWACS uses active electronically scanngy which is more advanced than USA’s and Russia’s AWACS. The radar in the American E-3C and Russian Beriev A-50U uses
older technology mechanical rotation of
the antenna for 360° azimuth coverage. In the KJ-2000 there is no rotating antenna. The scanning in azimuth and elevation is done electronically.
Three flat antennas are mounted in the radome on top of the fuselage in a triangle. Each antenna scans
120 degrees, thus covering full 360 degrees in azimuth. Elevation scanning is also similarly done by the array source. PLAAF AWACS on IL-76 platform. Note the triangle drawn on the lower side of the rotodome indicating the three sided planar array antenna inside. The other AEW aircraft which the Chinese developed was the
KJ-200 which had its first flight in 2005. The KJ-200 with its balance beam-like radar on the back of its Yun-8 (
Y-8 is a Chinese copy of Russian AN-12) airframe is a smaller AEW system which supplements the larger AWACS cover.
The planar antenna on the fuselage is a dual side linear-shape active electronically steered array (AESA) radar similar to the Swedish Ericsson PS-890 Erieyeiii . This shape of the antenna cannot provide coverage in front over the nose,
but it will provide broadside 120° coverage on each side. The IN FOCUS 30 NOV 2013
www.capsindia.org limitation of 120°coverage is because the highest value, which can be achieved for the Field of View (FOV) of a planar phased array antenna, is 120°. This limitation is there in the Erieye also. The Chinese have installed two radomes at the nose tip and tail cone. It is not clear for what purpose these have been installed but probably they house additional antennas to provide full 360° coverage.
وغير كده أنا برشح الصين عشان عندها مشاريع كتيرة ممكن نستفيد منها مثل مشروع جديد لطائرة خاصة "بالدورية البحرية ومكافحة الغواصات" ومشاريع "الدرونات سواء المسلحة أو الإستطلاعية"
وده شكل ال KJ-2000 من داخل الطائرة حاجة مبهرة بصراحة ..
@AL RAGH
