J-20 5th Generation Fighter VII

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minusone

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anyway, if it was indeed ws-15, it gonna takes at least 5 years to mass production right? Given they're still at single engine testing mode?
 
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latenlazy

Brigadier
Totoro said:
The nozzle in the image above definitely has 15 petals.
The nozzle of the WS10 engines on serial J20 definitely have 18 petals.
The nozzle we had in the latest images on these testbed J20 almost definitely have 13 petals. (And can't possibly have more than 14)
So those are 3 distinct engines/engine variants.

Coincidentally, as we know, that WS10 TVC as seen on J10 also had 13 petals. So if we'd count that engine as a separate variant from this one we recently saw on J20 testbed, we'd go up to 4 different engine variants, 3 of those spotted on a J20.
Click to expand...
Are we sure? I counted 14 in the black and white image.
 
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Totoro

Major
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latenlazy said:
Are we sure? I counted 14 in the black and white image.
Click to expand...
wswhat.jpg
I can't see how there could possibly be 14.
This way of counting actually makes it look as if there could theoretically be 16, rather than 15.
For there to be just 14, there would have to be an even bigger gap.
And for there to be just 14, there wouldn't be any room for the upper and lower edge to have petal points more bunched up, which is a must since the object in the image is taken at a perspective.
 
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Andy1974

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Apparently the J20 has been partially redesigned...

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Gong Feng, the deputy chief designer of the J-20, shared some new insights on the J-20's switch to domestically developed engines in a speech published by a social media account affiliated with the Xinhua News Agency on Wednesday.

Gong said that the domestic engines unleashed the potential of the J-20, since the old engines were not customized for the aircraft, and it had to make compromises in its performance.

In addition to developing the engines, the J-20, including its airframe, structure, pipelines, electric circuits and subsystems, were redesigned, Gong said.
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