Suhoj Su-27 Flanker

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Suhoj Su-27 Flanker

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  • djox  Male
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Jedna novija....



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zixo ::приступ радару



Sa druge strane



Malo detalja o radaru ....

`Suškin` mač Smile

N001 / Myech / RPLK-27

(Russian: Меч, literally Sword)

NATO "Slot Back"

OKB: Tikhomirov NIIP

Chief designer: V K Grishin



N001 looks very similar to the MiG-29's N019 radar

Citat:The N001 radar for the Su-27 was designed by Viktor Grishin. Pushing the state of the art for the USSR, the original design, known as Myech, was supposed to draw heavily on technologies developed for the experimental Soyuz radar program led by NPO Istok. It was intended to have a great deal of commonality with the MiG-29's N019 Rubin radar.


N001 internals from factory website

Citat:Development was difficult. Originally intended to significantly outperform the AN/APG-63 of the F-15, with a 200km detection range, in reality this goal proved impossible for NIIP to achieve. It was intended to use an all new design antenna, featuring electronic scanning in elevation and mechanical scanning in azimuth. This would give excellent multitarget engagement capability, and use of the MiG-31's R-33 was envisaged. This design proved overly ambitious, and was simply unachievable for a mass production radar given the state of the Soviet electronics industry in the early eighties. In May 1982, it was decided that the NIIP designed digital computer and antenna were simply not up to scratch, nor likely to become so in the near future.

Phazotron's N019 had already reverted back to an improved version of the Sapfir-23ML's twist-cassegrain antenna to replace its problematic flat-plate antenna. It was decided therefore to use major components from the N019 radar, including a scaled-up copy of its twist-cassegrain antenna and the TS100 processor. By March 1983, the redesign was complete, though the resulting radar was nowhere near as good was intended. Instead of 200km, detection range barely reached 140km even against a large bomber.



Stills from NIIP video show the twist-cassegrain antenna

Citat:In 1985 NIIP were ordered to improve its performance. Attention and work had switched to the new N011 radar to equip the Su-27M, and problems with N001 persisted. According to NIIP, initial units had a MTBF of only 5 hours. Though the Su-27 entered service in 1986, its radar was not finally accepted into service until 1991. Eventually MTBF was brought up to 200 hours.

N001 has a 1.075m antenna diameter twist-cassegrain antenna. A pulse-doppler design operating in the 3-cm band utilising medium and high PRFs for optimum lookdown capability, the N001 has a search range of 80-100km against a 3 sq m RCS target in a headon engagement, 140km against a large bomber. It can track a 3 sq m target at 65km. In a pursuit engagement, search range for a 3 sq m target falls to just 40km. Azimuth limits are ±60° . It can also track ECM sources, and feed target data to the Su-27's IRST system.

The average power transmitted is 1kW (same as N019).

MTBF is 100 hours.

A radar datalink is used for updating inertially guided missiles such as the R-27.

The Su-27K used an updated SUV-33 control system, the N001 radar was largely unchanged but with sea optimised lookdown capability and support for the carrier-based GCI system.

A modernised N001 radar developed for retrofitting to in-service Su-27 (analogous to the Phazotron N019M Topaz) can track and engage 2 targets at once using the R-77 missile.

N001VE is fitted to Chinese Su-30MKK. Uses Baguet series BCVM-486-6 processor for additional capabilities. Basically the same as NIIP Stage 1 package below.

NIIP N001 modernisation package

Stage 1: Provision of ground mapping modes. Existing radar is modified with a bypass channel that allows incoming radar data to be switched to a new all-digital processing system. When a new mode is selected, radar data is sent to the new subsystems, but if an old mode is selected the data is processed as before by the existing radar hardware. Thus all old modes remain unchanged. New air to ground modes added are very similar to those of the Zhuk radar. Only 1 additional air-to-air mode, which gives RVV-AE compatibility.

Stage 2: NIIP propose a new lightweight, optically-fed Pero phased array antenna as a drop-in replacement for the existing cassegrain antenna. This will substantially improve air-to-air performance, and increase air-to-ground resolution. New modes will be added at the same time for target identification, velocity search, and to detect hovering helicopters. Suggested that range might reach 300km against a large target.

Upgrade to Stage 2 is expected to cost 35% of the cost of a new radar.


Arrow http://en.wikipedia.org/wiki/Myech_radar

sremac983 ::Mercury ::Tek 1990.? Vau, ovo nisam znao.Sto tako kasno?

Он је имао ако се не варам проблема са радаром, тј. тешко је захватао циљ са истим а још теже га пратио током навођења ракете на исти. Често је долазило до прекида навођења а самим тим и немогућности обарања циља испаљеном ракетом. Па је ето било потребно пар година да се тај проблем отклони, а они су у међувремену пристизали у јединице и то у великом броју и тек 1990 године постаје званично оперативан.

Нешто слично се дешава и са Ф-35 код амера. Штанцају га, али није оперативан док се не отклоне недостаци.....


Neka naglabanja u vezi s tim

Citat:At the same time, the Soviet Union undertook a similar program called Soyuz, aimed at the development of advanced radar sets for future MiG-29 (NATO: Fulcrum) and Su-27 (NATO: Flanker) fighters. The program started in 1974. Both radar sets were to have maximum commonality; the only difference was to be their size and power. They were to use flat, slotted-array antennas, digital signal processing and pulse-Doppler technology. The aim was to track several targets simultaneously, providing both systems with a track-while-scan mode. The maximum ranges were to be 100 and 200 km, respectively. The MiG-29 radar was to be developed by NIIR, while NIIP would tackle the Su-27 system.

However, despite the success of RP-31, both institutes failed to develop the required systems on time, and less ambitious stopgap solutions were launched in the late '70s. NIIR designed and built the N019 Rubin (NATO: Slot Back) radar for the MiG-29, while NIIP developed the N001 Mech radar for the Su-27 (also called Slot Back by NATO). Both had traditional planar, mechanically scanned antennas. They were based on advanced solid-state technology and digital signal processing, but some radar controls were still partially analog. The main performance concession was that the radars could only track a single target with no track-while-scan capability. The biggest achievement was good look-down/shoot-down performance, with only a 20 percent range reduction. In the case of the N019 Rubin, the ranges were 85 km (detection) and 55 to 60 km (track). The maximum observation angle was 60 degrees up, 38 degrees down and 67 degrees on either side. The range of NIIP's N001 Mech radar fell far short of expectations, with only 140 km against a bomber-type target and 100 km against a fighter-size target. In chase, the ranges were reduced by half. The radar failed to pass state trials in 1982, and in 1985 NIIP was directed to improve it. It finally scraped by state trials in 1991 and was accepted to service, primarily because the alternative was that the Su-27 fighter would be left without any radar at all.

Some misunderstandings arise concerning the number of targets tracked by both types of radar. Some sources provide the number of ten targets tracked simultaneously. The number actually refers to the number of targets about which detection information is provided, which is not track-quality data as understood in the West. The Russian word "so-provozhdyeniye," with a rough English translation of "track," is misleading in this context. In this mode, the radar starts providing information about up to ten selected targets, but before engaging any of them, the pilot has to switch on the "perekhvat" mode, which in Russian means "intercept." In this mode, all the targets except one disappear, and the system prepares fire-control data for missile launch (no track-while-scan mode). Among the other radars (N019 and N001), there is a mode that provides automatic threat assessment and target prioritization. They are both also capable of close-combat work, with a quick vertical-scan mode. Both also work with the same R-27R (AA-10 Alamo) missile, while the Su-27's N001 radar's range enables use of the R-27R1 extended-range version. Both radar sets work in the X-band (about 3 cm wavelength).


РЛС Н001 "Меч".

Citat:Антенна Кассегренна, диаметр 1076 мм;
Дальность обнаружения цели "истребитель":
ППС - 100 км;
ЗПС - 40 км;
Угол сопровождения по азимуту и углу места +/- 60 град;
Количество сопровождаемых целей в режиме СНП - 10;
Количество одновременно наводимых ракет — 2;
Количество атакуемых целей - 1


Citat:РЛС Н001 с двухзеркальной антенной Кассегрена на Су-27.



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Ispada da je N001 mnogo glomazniju od N019, a tek 20% "jači"....

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naoruzan do zuba
Krim 2004

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^

Valjda ova 2014g ? Odakle ruska `Suska` na Krimu 2004g .. jedino ako nije sa zadatkom zastite vojno-pomorskih baza ( Sevastopolj konkretno ) ali na ukr. teritoriji tada malo mi to sumnjivo ...

Da li imas info koja je to bila AB drugar ?

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Krymsk Krasnodar
moja greska kolega..
u brzini sam lose procitao pa napisao Krim Smile

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AB Sagol...danas


Citat:Сегодня в Челябинск прилетели Су-27П б/н 04 RF-92404 и б/н 02 RF-92414.

Arrow http://vonsolovey.livejournal.com/43503.html

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Da li je montaza ili su stvarno zavrsili u SAD ?


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Privatni

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Kamcatka,Jelizovo

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