J-20 5th Gen Fighter Thread VIII

[another505]

I am sorry, but i tried to look for it, what does a radar blocker look like in this case?

 

[Tomboy]

I am sorry, but i tried to look for it, what does a radar blocker look like in this case?

Like this, thick curved vanes block 100 percent of the turbine from view

 

[taxiya]

I am sorry, but i tried to look for it, what does a radar blocker look like in this case?

A even better illustration from another paper.

 

[another505]

Much appreciated, you two.

 

[Neurosmith]

Officially they will never say anything for years even after service. Luckily we may see it once they are in service. Indirectly we can be pretty sure they do.

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by 606th

One thing to note, the blocker is both for infrared and radar signature reduction as stated in the summary section even though the title says intrared only because infrared research is the purpose of the paper. The summary also refers to F-119's implementation.

全遮挡一体化加力燃烧室发动机红外特征抑制​

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1:2 test article
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Dumb question here...doesn't DSI negate the need for radar blockers, since you wouldn't be able to see the compressor blades?

Or is it for the turbine blades for rear-aspect stealth?

 

[latenlazy]

Dumb question here...doesn't DSI negate the need for radar blockers, since you wouldn't be able to see the compressor blades?

Or is it for the turbine blades for rear-aspect stealth?

Butt cover.

 

[00CuriousObserver]

Some close-up shots of a J-20S. Posted by @太湖军I名 on Weibo.

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The workers are apparently from AVIC, and the photos/video were from last year's parade.

Btw, a slightly relevant rumour for us watchers: 约克 said that apparently more promotional material were made for the equipment shown in the parade, but Zhang Youxia decided they revealed too much and stopped them from being released. Now that he is no longer in charge, we might see more details about the parade stuff.

 

[ENTED64]

Dumb question here...doesn't DSI negate the need for radar blockers, since you wouldn't be able to see the compressor blades?

Or is it for the turbine blades for rear-aspect stealth?

DSI is for intake, that is where the air goes into the engine at the front of the plane. It's in the name: Diverterless supersonic inlet.

This is for the other end, where the exhaust exits the engine at the back of the plane.