Sukhoi Su-27/30/33/35/37 Flanker series & Su-34 Fullback - History, Design, Performance & Dissection (Part 2)

Its detection at 350-400km and then engagement at around 160km for 3m^2 target if I remember right, I have to double check

speculation is that the video is a test against targets with lower RCS than a normal fighter

it is certianly able to track targets at +160km

it possibly is tracking fighters as it seems it is a two-ship
(so a fighter lead and wingman)

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Okay low key it says nothing about the radar actually engaging at those ranges, just detection. I got the 150km from apparently target detection tail on for 3 m^2, not actually tracking. The biggest thing I can find is that it says irbis allows customers to engage with 300km + missiles, but not actually engage at 300km

Yap about irbis

Spoiler

In long-range detection mode, within a 100 sq. degree zone (±60° of aircraft centerline), Irbis-E shall detect 3 m² RCS air targets and measure their range:
• Head-on: ≥ 350–400 km (with target altitude > 5,000 m, sky background: ≥ 400 km);
• Tail-chase: ≥ 150 km (with target altitude ≥ 10,000 m, sky background).

Detection of “very low observable” targets (0.01 m² RCS) shall be up to 90 km (roughly equal to the max fighter-class detection range of 4th-gen radars on Su-27 and F-15C). Group-target resolution at 50 km: 50–100 m in range, 5 m/s in velocity, 2.5° in angle.

With the customer-specified weapons set in A/A mode, Irbis-E should enable simultaneous engagement of up to 4 air targets with long-range (300+ km) missiles, or up to 8 targets with medium-range RVV-AE.

Sources for Su-35’s Irbis-E’s ability to guide two R-27ERs simultaneously from NIIP’s website (Also contains some general info about Irbis-E):
https://web.archive.org/web/20080327051343/http://www.niip.ru/main.php?page=library_sky19
https://web.archive.org/web/20090304194610/http://www.niip.ru/main.php?page=library_sky17

Other pages regarding Irbis-E from NIIP’s website:
https://web.archive.org/web/20090210204623/http://www.niip.ru:80/main.php?page=library_sky18
From sudo
@MythicPi this is about all the info for irbis you will find on the internet

We sure thats the track symbology and not something like a datalink track?

i cant send the full video, bc forum rules, but he is launching at them

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That’s the engagement of the longest range kill before the pl-15e from j10c if I remember right, he uses r37m

iirc the r-27r was designed that a radar can guide 2 of them at the same time

the only reason the N001 couldnt is becuase it didnt had enough RAM to remember the lauch frequencies of the missiles

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You’d be able to launch of a datalink track as well, such as if an AWACS or ground radar was tracking the target and relaying targetting info.

Its possible the Irbis-E cant fully employ the R-37M vs fighter sized targets, and requires datalink assist at those ranges, its not like the R-37M is actually designed for extreme range fighter interception (though its capable of doing so), AWACS and tankers are much larger targets the Irbis-E could definitly track at much longer ranges than fighter sized things.

Either way, its just a point of interest from the video imo, like I said, it would not matter in WT with our tiny maps.

Was n011 or n011m able to launch with 2 27r? Haven’t seen any credible info about that for radars before irbis

possible but not sure

he seems to be using his own radar looking at the symbology it seems like he is using his own radar
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the “RL” (РЛ) means that the radar is turned on

the “D” ( Д) should be target aspect / PRF

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saw speculation, because the r-27r/er were designed to do that from the start but then couldntimplemented into the N019 and N001 for a lack of RAM

i would imagine that the N011 and especially the N011M have enough ram to remember the frequencies of the missiles

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Radar being on doesnt mean its not a datalink track, datalink targets should be in the radar screen along with ones your own radar is picking up, otherwise itd be a hassle for the pilot

hear me out, ks172 missile bus
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there isnt any symbology in the HUD suggesting that he is using some sort of DL

and even then the given conditions it seems unlikely that he could recive DL from anything, as russia dosent really operates AWACS and given the target distance and them seeming to fly relatively low compared to the lauching aircraft

the onlything that might have been able to do it might be a Mig-31 but then again they would probably stay somewhat far behind the Su-35’s

now we just need to figure out on how to mount this between the air intakes

nah need something bigger

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