J-20 5th Generation Fighter VII

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anzha

Captain
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Something that is supposed to be a simple answer. Confuses me even more. Just tell me in layman's term. Did they detect a J 20 deep in China's interior or not? If so, then China and anyone else is wasting their money on Lungberg lens or not.

Have you thought that, perhaps, the lungberg lens is the reason for being able to detect the J-20? Letting people know there's a big bad wolf in the area can be an effective. As can flying it through so it can be detected and then fly again - when they know you are there - and not be. Stealth gives you other ways if messing with your enemy or rival.
 

Gatekeeper

Brigadier
Registered Member
Have you thought that, perhaps, the lungberg lens is the reason for being able to detect the J-20? Letting people know there's a big bad wolf in the area can be an effective. As can flying it through so it can be detected and then fly again - when they know you are there - and not be. Stealth gives you other ways if messing with your enemy or rival.

So you're saying the J 20 is being deliberately being detected by India from somewhere deep in China.

So the claim by wing commander is simply invalid. Because his claim that J 20 is nothing special because it can, and has been detected. But now you're saying that is deliberate on the J 20 part.

You guys just can't make all this up like this.
 

Breadbox

Junior Member
Registered Member
One of the purpose of the luneberg lens is to mask the distinctive radar signature of stealth aircraft during peacetime, if the distinct radar signature of a stealth aircraft is identified by a potential enemy, they would be able much more quickly identify whether the blip on their radar is a J-20 and not a really fast drone/missile/bird/debris.
 

Gatekeeper

Brigadier
Registered Member
One of the purpose of the luneberg lens is to mask the distinctive radar signature of stealth aircraft during peacetime, if the distinct radar signature of a stealth aircraft is identified by a potential enemy, they would be able much more quickly identify whether the blip on their radar is a J-20 and not a really fast drone/missile/bird/debris.

Yes, that's all very well. But the point was that the wing commanders claim was that the J 20 is nothing special as the Indians have detected it. But it really transpire that the Indians detected a dummy!

See what I'm trying to say. They trying to gave their cakes and eat it. Gee.
 

anzha

Captain
Registered Member
So you're saying the J 20 is being deliberately being detected by India from somewhere deep in China.

I am not making up anything. Nor am I supporting the Indian claim: that's clearly propaganda by India of the same stripe as what the Russians do about American stealth aircraft.

Is there a scenario where India might have detected the J-20. Yes, there is. That is what I am talking about. And, to reiterate for clarity sake: China may have intentionally flown the J-20 so it can be detected as part of a 'flex.' Even so, there is no way India detected the J-20 deep in Chinese territory.

I am under no illusions the Indians are anywhere near the Chinese tech wise: the LCA vs J-20 is a prime example of that.
 

Breadbox

Junior Member
Registered Member
I think should be noted that the J-20 is not very stealthy from behind, it’s possible that it’s identified when it’s turned around.

However, it should also be asked how does he know what he saw on the radar was a J-20?
Did he
>see a faint blimp suddenly appearing at relatively close range=possible stealth aircraft
>Radar signature that is similar to a regular aircraft=No real way to tell whether it’s just a regular fighter or J-20 with luneberg lens.
>Radar identification+visual confirmation=if you are close enough to eyeball the aircraft when the radar detects it, then clearly the stealth is working.

>Or a combination of the above.
 

Gatekeeper

Brigadier
Registered Member
I am not making up anything. Nor am I supporting the Indian claim: that's clearly propaganda by India of the same stripe as what the Russians do about American stealth aircraft.

Is there a scenario where India might have detected the J-20. Yes, there is. That is what I am talking about. And, to reiterate for clarity sake: China may have intentionally flown the J-20 so it can be detected as part of a 'flex.' Even so, there is no way India detected the J-20 deep in Chinese territory.

I am under no illusions the Indians are anywhere near the Chinese tech wise: the LCA vs J-20 is a prime example of that.

No I'm not saying what you'd posted is invalid or anything like that. Or accusing you of pro-india. Etc.

I'm just referring to the article where the wing commander poopoo China's stealth aircraft because......

And it transpire his triumphant celebration might be misplace. The J 20 is not as rubbish as he had try to portrait to his audiences. Which goes on to underline the quality of his report. I should've stop reading that trash as soon as he mentioned the J31 is a single seater jet!
 
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siegecrossbow

General
Staff member
Super Moderator
Although it is true about being detectable, he isn't saying that. He didn't just say the J 20 CAN be detected. He has actually claimed it HAS been detected in the past. Which make me think;

Has any J 20 stray into India airspace or even stupid enough to go close to Indian space? If not, then the mighty MKI must have a super duper radar that is able to detect stealth fighters deep into Chinese territory! Either that, or the J 20 is rubbish at stealth.

Either way, it's an amazing claim.

The J-20 has been deployed near Tibet for testing purposes in the past. The ridiculous part is that the Indians assert they have detected the J-20 with Su-30 radar from 300KM away (which I don’t think was reported officially by the Indian military). BARS radar’s maximum detection range against MIG-29 is around that number. This also begs the question : how did the Indians know they detected a J-20from such a long distance without visual identification?
 

Gatekeeper

Brigadier
Registered Member
The J-20 has been deployed near Tibet for testing purposes in the past. The ridiculous part is that the Indians assert they have detected the J-20 with Su-30 radar from 300KM away (which I don’t think was reported officially by the Indian military). BARS radar’s maximum detection range against MIG-29 is around that number. This also begs the question : how did the Indians know they detected a J-20from such a long distance without visual identification?

Thanks. That's what I been trying to say. but obviously not as eloquently as you. Apologies to everyone for my frustration of not making myself clearer.
 

anzha

Captain
Registered Member
This also begs the question : how did the Indians know they detected a J-20from such a long distance without visual identification?

I have always wondered if it were possible to ID aircraft by the RCS much like the subs do with each other with sonar. Radar isn't sonar by any means. However, if you could, then a chase plane of a known type following an unknown would imply the unknown was something new and, thus, a J-20.

But...

Probably not.
 
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