J-20 5th Generation Fighter VII

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by78

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This second picture is probably one of J-20's best angles

Ditto. This angle also ranks up there for me. The foreshortening makes it ominous and quietly menacing.

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siegecrossbow

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Seems like for parts of the particular flight and at certain angles (or camera settings) there is a bit of visible exhaust.

I don't think we've ever particularly seen visible smoke from WS-10 variants in the past from the various jets that are in service, so I suspect this is conditional on something specific.

The J-16 that performed at Changchun Airshow in 2019 smoked quite a bit as well. I’ve already stated my opinion on the matter a while back. As long as the smoke is not RD-33 level it should not matter from a tactical standpoint since it is to faint to spot from more than 1-3 kilometers away. By then the aircraft is already well within visual range combat.
 

Blitzo

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View attachment 77547
Anyone understand the reason for the horizontal stab gaps? I'm guessing it's some sort of flow separation trick for more effective control? There aren't many other planes that have all moving stabs to compare to.

All control surfaces have a gap, they just try to minimize it as much as possible.
In this case, the gap looks more pronounced because the tails are actually very slightly deflected -- look at the trailing edge of the aircraft's right tail, and you'll see that it's not continuous, indicating that in that specific moment the picture was taken, it was deflected, therefore from the camera's angle it looks more like a "space".

But at a neutral position, the gap would be far less visible.
 

e46m3

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All control surfaces have a gap, they just try to minimize it as much as possible.
In this case, the gap looks more pronounced because the tails are actually very slightly deflected -- look at the trailing edge of the aircraft's right tail, and you'll see that it's not continuous, indicating that in that specific moment the picture was taken, it was deflected, therefore from the camera's angle it looks more like a "space".

But at a neutral position, the gap would be far less visible.
Just noticed the F-117 is the same, curiosity satisfied.
 

Blitzo

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The J-16 that performed at Changchun Airshow in 2019 smoked quite a bit as well. I’ve already stated my opinion on the matter a while back. As long as the smoke is not RD-33 level it should not matter from a tactical standpoint since it is to faint to spot from more than 1-3 kilometers away. By then the aircraft is already well within visual range combat.

I admit, going back to the Changchun Flanker displays I don't see any that were quite as obvious as some of the angles of the J-20's in this specific case.

But I digress


I suppose, possibly this pic (second to last in the linked post)
 

foxmulder

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View attachment 77547
Anyone understand the reason for the horizontal stab gaps? I'm guessing it's some sort of flow separation trick for more effective control? There aren't many other planes that have all moving stabs to compare to.


There are no gaps mate. Edges are sculptured. They taper towards the very edge. It is actually to decrease radar signature. Look into F-22 flap edges. similar...
 
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