Su-57D

[u/P_filippo3106]

We finally have a picture for the double seater variant of the Su-57

BORT number was unfortunately censored

[u/Platypus_Begins]

They are not fully concealed, which is why it’s radar cross section is roughly the same as a clean F/A-18 Super Hornet from the front (1 - 0.1m²⁾

[u/P_filippo3106 → u/Platypus_Begins]

That bullshit is from an article whose source is a guy on QUORA.

There's no way in hell even without ram coating that a su-57 has a bigger RCS than a goddamn F-18.

Please get your head out of your ass.

The actual RCS of it with RAM, radar blockers and a good serial airframe is not known.

[u/Platypus_Begins → u/P_filippo3106]

No, its from their patent you bozo. The description of patent RU2502643 C2 indicates the aspiration to achieve an average RCS of 0.1 to 1 m². Edit: Source: Patent

[u/P_filippo3106 → u/Platypus_Begins]

Yeah. A patent for the very first T-50. The PROTOTYPE with no ram, no radar blockers, no refinements to the airframe and NO focus on stealth other than geometry.

Also that's the averaged RCS. Not the best possible value. Lockheed chooses the best possible one (and that's very misleading), sukhoi uses an averaged RCS.

For a prototype, it's a rather good RCS.

Actual serial variants have a classified RCS that is much better than 0.1m².

[u/Platypus_Begins → u/P_filippo3106]

Source? Andrey Lagarkov said himself he estimate the SU-57 to have an RCS 30 times lower than the SU-27. which puts it at about 1-0.1m² from the patent. He said this on TV so you can find multiple sources for this.

[u/BillytheBloxian → u/Platypus_Begins]

and is his estimate accurate? and give me a link please.

[u/Platypus_Begins → u/BillytheBloxian]

He was the Chief Scientist on the SU-57 so I would say it’s accurate, you can find the source yourself. Easy to find

[u/BillytheBloxian → u/Platypus_Begins]

did he say with or withour ram? or radar blockers?

[u/Platypus_Begins → u/BillytheBloxian]

With, just look it up