If you looking at their diagram , the B-2 at 1 Ghz and below have very high peak RCS ( about 100 m2 ) at the 30 degrees boardside which will bring up the average value of RCS significantly , but it’s frontal RCS value as depicted by the graph is still pretty low and similar to the one taken at 10Ghz .

Yeah, coz all IADS radars may be only straight ahead of your plane…
May be you should look at the table with numbers for +/-0-20*? 0.03sqm for 10GHz, 0.13sqm for 1GHz and 0.62sqm for 166MHz. With increase of Lw from 3cm to 180cm – RCS increases by 20 times.

Someone, please, explain to this…hmmm…not very smart person…what type of coatings are using on Germanium glass of systems like EOTS.

Never claimed they were anything other than first order approximations. If a stealth aircraft supposedly has a 5-12m^2 RCS in the VHF band, then how come a 380kW VHF radar with a claimed range of 250km only detected a passive F-117 at 50km? Doesn’t hold up to scrutiny does it?

Claimed range for WHAT RCS?

The canopy is shaped (not spherical) and has a heavily slanted frontal face, it’s composition is also different. The sphere is probably the most studied and best understood of all radar cross-sections.

Yeah, it’s not spherical – it’s curved surface with an area of 1000 IRST spheres. Now if you believe this huge thing has smaller RCS than metallized IRST optical sphere… Well, then you should believe in unicorns, as well, coz it’s a miracle!

They probably already know this and are laughing at your claims. Perhaps you can ask them why a 380kW VHF radar with a 250km range only picked up a 5-12m^2 object at 50km?

Most likely, they’re laughing at your claim. Coz one of the main purpose of Protivnik-G development was to detect stealth fighters, like…F-22. :rolleyes:

It certainly is if it has a metal football up front.

Yeah, coz huge metallized canopy is protected from scattering with a…magic?! :rolleyes: It’s funny, how strong and blind your beliefs.

See 250km vs 50km question. That’s my calculation.:highly_amused:

This is a bull**** of kindergarden’s arithmetics lessons level.

Oh sure, there have been improvements, but there have also been improvements to stealth and jamming added to stealth aircraft. There have also been improvements in ESM and geolocation and satellite surveillance. Military ground vehicles have also not fared well in wars over the last 30 years, especially largely static ones.

So, you admit that radar from 1960’s isn’t the same as radar from 2000’s?! Even if they’re working in the same wave-band and have equal power. Now, make the last step – admit that your primitive “proportional arithmetics” is a pure bull**** that has nothing to do with reality and real scientific calculations.

It happened, denying it is pointless.
http://www.nytimes.com/1994/12/24/us/in-a-shadowy-marketplace-america-buys-russian-arms.html?pagewanted=all

Listen, i saw many pics of Su-27 sold to US, that’s a fact. But nobody, for 20 years, couldn’t find even a single solid evidence all these articles about S-300 are true. This S-300 is just like Aurora – tonnes of articles, zero evidence.

Nah, this is pretty solid as the worst kept secret that the U.S. has two older S-300 systems in possession. Have to find the old link on the actual models.

Back in 1990s i’ve heard the rumor that Belorussia sold S-300 to US. But never seen any solid evidence that US has at least one operational S-300. And it looks like – nobody have seen them. Only rumours.

Well no, there’s radar aperture area, which is again far bigger for the Nebo than say an Irbis-E. It’s also got more power than an Irbis-E.

Yeah, coz resolution, radio-horizon and many-many other parameters aren’t existing in this world. :rolleyes:

A B-2 does not have an RCS of 5-12m^2.

Sorry to say, but scientific data from one of the most respected group of military radio physicists says otherwise – you like it or not. For 30-180cm wavelength average RCS of B-2 in+/-45* is 5-12sqm. And their research is far more serious than all your(and guys from AW) basic arithmetics based on some public claims, which are light years away from the real science.

And I don’t speak Russian so that link is useless to me.

This is only your problem, not mine. Sukharevsky’s group is pretty well know in radio-physics community.
N

or do they have a spare B-2 to have tested such claims, whereas Nellis AFB do have an S-300 system.

They do have some education and knowledge, in contrast to you and AW.

Google Maps, the C2 vehicle is at 37°18’50.6″N 116°47’28.8″W (37.314045, -116.791343). The launch vehicle is just to the SW, and further to the SW is a TIN SHIELD target acquisition radar, while to its NW is a mast-mounted FLAP LID target engagement radar lowered down to the ground.”

With this quality of images – it easily can be anything, from gaz-truck to mockup, just like TOR mockup.

I remember we had a good laugh about British “S-300” which turned out to be a poor-made mockup.

So I can either trust in people who have tested it against the enemy system, or people who haven’t and are just blindly guessing. Now let me see….

Show this S-300, first. Not some shaddy G-sat images. Show it operational, then talk about some people.

Not a good point though. VHF is also the wrong band for B-2s and F-22s, upper UHF or lower L-Band would be better.

Real scientists disagree with you. :rolleyes:

According to Almaz-Antey the detection range for a Nebo-SVU VHF radar is only 360km for 2.5m^2 targets and Antey-2500 minimum target RCS is 0.02m^2. That would imply a 29km detection range for F-22s and no engagement capability.

http://www.almaz-antey.ru/en/catalogue/millitary_catalogue/

Ahahaha! Nebo is not a part of S-400! And RCS in different bands will be DIFFERENT! You even don’t realize that 2,5sqm is given for VHF band, not X-band!

OMFG, enough of this stupidness.

Yes, really. The Distance at which an S-400 can engage fighters. There in big letters. Please don’t bring other threads I haven’t participated in into this debate.

Are you ******* blind?!

Almaz-Antey says the S-400’s 92N6E “Gravestone” fire-control radar can detect a 4-m2 radar-cross-section target at 250 km