Is the Su-57 really worse than the F-22?

Machinery of War Discussion
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1161

Man. Irbis Radar its one of the most powerful radar to date. It also have one of the higher Peak of not GaN based AESA.

That is Irbis with 5kw Average. On Chinese Su-35s. In that video someone even said that it was a tested for China. Normal IRBIS has 10kw Average

Here some calculation done by some Radargeek aka StealthFlanker.

Spoiler

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The red one its suppose to be the AESA on Japanese F2. And Ftr same guy did Simulation on Su-57 main GaAs radar and in his calculation it just follow the same as IRBIS.

IF you are arguing that R-37m its limited by IRBIS. Imagine all these radar and Western plane that have worst detection range and Usually relied on AWACS. For long range shots.

2 Likes
1162

idk where you got that information from and i dont really see why russia is evaluating a radar for china,
especailly when russia had the su-35 in service before china

1163

Is it J/APG-1 or J/APG-2?

1164

I got it from the video that img come from. I’ve see that video posted in a lot of places.

Here some info in Chinese of the radar. This image also come from a video. I just can’t found the video.

Spoiler

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Same with the 10kw avg. but even some Serbian source i remember they change it to just 5kw avg.

J/apg-1
Dhimas Afihandarin en X: “The full report is available here : https://t.co/1aULN9dKJe” / X

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1165

it is this one:

but still su-35 entered service later with china than russia

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1166

J/APG-1, it uses wattage estimates from the T/R papers we got a bit ago, could potentially be higher due to the unkown duty cycle, which is claimed to be higher then the average which is used here.

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1167

oh god
a spreadheet that looks like it is able to calculate the last number of PI

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1168

As per sources it is for a pulse mode

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1170

Still better source then “Trust me bro” xD

1171

give me 1 official claim of it having 400kw peak output

1172

to put it into perspective if it is indeed 400kw it would end up having like 1000km+ agaisnt a 5m2 target or something

1173

Maybe but also remember the Su-35 doesn’t need to use it’s Radar an A-50 can provide over the horizon data for BVRAAM shots.

1174

Are you sure? At least, considering that almoat only A-50 Russia have - sovied made, with soviet datalink and systems overall…

1175

anything can be upgraded.

also i believe they depend on DL updates from ground units like s400 more than AWACS, kinda their doctrine

1176

You need money for that
Aswell as power

Sure A-50U exists… but only few of them

1177

a bit of software upgrade to make it network centric doesnt cost much

1178

Not software.
Hardware is also outdated a lot.

Also you need to pay workers

1179

you still dont get the point, you just need to give the coordinates of the targets using DL to planes and missiles in the area

what kind of point is that? obviously they are paid.

1180

Yes A-50 has been providing guidance for S-400 systems.

Russia have a pretty developed data link

1181

It is not uncommon for pulse radars to have very high peak powers, with far lower average power. For example the British Red Steer radar (a relatively small radar with 20 nm max range, used for tail warning on the Vulcan bomber) had a peak power output of 130 kW, but doing some maths using the pulse width and PRF provided you arrive at an average power of only 130 W.
image

It is not hard to believe that far larger and more modern radars would be able to achieve 400 kW peak power. Heck the MiG-25’s radar is widely stated to have a peak power output of 600 kW.

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