J-20 5th Generation Fighter VII

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AndrewS

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Abominable said:
If the F-35 are really now able to be detected quick enough that it can be intercepted, how much of an advantage is it really?

Stealth aircraft make a lot of compromises with aerodynamics, payload and cost, what's the benefit?
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Fighter sized stealth aircraft can be detected at long range.

But it will still be very difficult for another fighter or missile to obtain a weapons grade track with an X-Band radar

So you can see the enemy stealth fighter, but you can't hit it with a radar guided missile.
 
siegecrossbow

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tphuang said:
There is no need to get defensive about that comment. China is no longer a weakling. J-20 most likely would be flying with Luneberg lens on these interceptions. And it would be hard for USAF to figure out the exact range of Chinese air defense radar/systems since the natural response from China's air defense is never going to be the same every time. PLAAF will scramble the aircraft that's available at that time. Even if they wanted, I don't see how the reaction time could be the same every time. At the same time, it's a completely normal practice for USAF to try to probe Chinese ADIZ to see how China would react to such an incursion. Just as China should be doing the same to Japanese and USAF bases in the area.



It has to be pretty tough for Indians at this point. China has 3 times as many J-20s as India does of Rafales. And there is no real path for India to 5th generation aircraft. To the point that Indians claimed Rafale can be -20dbMS from certain angle! The funniest thing I heard on that podcast is when they compared the possibility of India going back to su-57 purchase like a man going back to his ex-gf because he has no other choice.

On the other hand, MKI detecting J-20 with Luneberg lens down is quite normal.

Well, J-20 will be more and more common. There is no reason to shrink in fear. You can always intercept with Luneberg lens down. If it's the easiest to send a J-20 to intercept F-35, a J-20 will get sent. At this point, I think both US and China have a good idea of the stealth level of other side.
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Maybe, but not at a range that exceeds the maximum advertised range of the radar.
 
sferrin

sferrin

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emblem21 said:
From the hoom and ha about how invincible and full of stealth and capability, one would have gotten the wrong idea but then again considering their current successes right now, I guess one wouldn’t place too much hope on them at all. I somehow expected this conclusion but now it seems my thought are more or less confirmed
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And you get all this from a USAF guy saying, "we've seen J-20s"? It could range from F-35s bouncing J-20s completely undetected to the opposite or anything in between. No other details were given. Everything else is all you.
 
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test1979

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The j-20 should always have the Luneberg lens open, which means that the e-3 can't find the j-20 with the Luneberg len open in time?

E-3 insufficient for timely detection of J-20: Pacific Air Forces chief​

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tphuang

tphuang

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sferrin said:
They already do that with all three bombers.

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I thought those portable shelters don't maintain stealth layer on B-2s that well. I'd imagine B-21's stealth layers should be a lot easier to maintain, especially in forward deployment position.
test1979 said:
The j-20 should always have the Luneberg lens open, which means that the e-3 can't find the j-20 with the Luneberg len open in time?

E-3 insufficient for timely detection of J-20: Pacific Air Forces chief​

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I think USAF has a very good idea of J-20's stealth level even if they have encountered it with luneberg lens down everytime. And based on what they know, they are pretty confident E-3 cannot track J-20 at useful range.

Shilao's podcast also mentioned that J-20 has to fly higher in order for the Luneberg lens to hide its radar signature from the AWACS. It does make me wonder. Since J-20 has a higher operational ceiling than F-35, it might have a better chance of "discovering" F-35's radar signature by operating at a higher altitude. Either way, even if it hasn't happened yet, I think the two sides will increasingly have understanding of stealth performance of the other side and also how to counter them.
 
siegecrossbow

siegecrossbow

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tphuang said:
I thought those portable shelters don't maintain stealth layer on B-2s that well. I'd imagine B-21's stealth layers should be a lot easier to maintain, especially in forward deployment position.


I think USAF has a very good idea of J-20's stealth level even if they have encountered it with luneberg lens down everytime. And based on what they know, they are pretty confident E-3 cannot track J-20 at useful range.

Shilao's podcast also mentioned that J-20 has to fly higher in order for the Luneberg lens to hide its radar signature from the AWACS. It does make me wonder. Since J-20 has a higher operational ceiling than F-35, it might have a better chance of "discovering" F-35's radar signature by operating at a higher altitude. Either way, even if it hasn't happened yet, I think the two sides will increasingly have understanding of stealth performance of the other side and also how to counter them.
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I wonder if it is possible for the J-20 to mount three luneberg lenses like the F-35 does. By mounting two lenses on top of the aircraft you could cover the top signature as well.
 
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