J-20 5th Gen Fighter Thread VI

[siegecrossbow]

Aerodynamics question:

Why does the vortex sweeping over one of the wings split off into two streams?

 

[plawolf]

Pretty much all modern high end smartphones

Aerodynamics question:

Why does the vortex sweeping over one of the wings split off into two streams?

Vortexes are not so much splitting as being generated by different sources.

The inner vortex stream is generated by the canards and strengthened by the LERX. The outer stream is generated by the wing.

Also, there are two streams over both wings, it’s just much easier to see on the left wing as that is in sunlight while the other wing is partly in shadow, but you can still make the the second stream.

 

[siegecrossbow]

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Yankee confirmed that although the J-20 currently does not have a gun for reasons of weight and potential scorching damage to stealth coating, there is a spot reserved for a gun. He also confirmed that the current J-20 also uses a domestically thrust-enhanced AL-31s.

 

[kurutoga]

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Yankee confirmed that although the J-20 currently does not have a gun for reasons of weight and potential scorching damage to stealth coating, there is a spot reserved for a gun. He also confirmed that the current J-20 also uses a domestically thrust-enhanced AL-31s.

In that post, was he hinting the gun would be an energy weapon eventually?

 

[siegecrossbow]

In that post, was he hinting the gun would be an energy weapon eventually?

He said that the gun will be "unlike any currently in service in PLAAF" but didn't elaborate further. Technically it could just be a gatling gun because no PLAAF fighter has a gatling cannon.

 

[Gloire_bb]

doctrine? Their theory of air combat versus opponent such as US might have led them to believe that number of occasions where more than 4 BVR aams are needed is insignificantly small. If so, that would be in opposition to US, which concluded 4 missiles aren't enough for raptor. But at the same time they're in no hurry to fit more into F-35. As for russians, no official info is out there. the case for 4 inside su-57 is as strong as the case for 6.

No cases here, su-57 carries 4+2, as does j-20. It isn't about pure volume, it is about suspension points.
Accidentally, it mimics typical 4th gen air superiority low drag load out...

 

[Klon]

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Yankee confirmed that although the J-20 currently does not have a gun for reasons of weight and potential scorching damage to stealth coating, there is a spot reserved for a gun. He also confirmed that the current J-20 also uses a domestically thrust-enhanced AL-31s.

He must have missed all those SDF arguments. So much for that.

 

[KIENCHIN]

Simple answer: No ... since there is no Zhuhai airshow in 2019. Only in 2020 again.

Oops

 

[taxiya]

This pic is super nice. The two small bulges on the ventral fin are actuators? if so they are used to move what exactly

I read somewhere saying it houses actuators of the vertical stabilizers.

 

[siegecrossbow]

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They'll think that the J-20 is an interceptor even after thrust vectoring is installed .