J-20 5th Generation Fighter VII

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ACuriousPLAFan

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J-20 fitted with WS-15 has made its maiden flight. Apparently the speaker is a famous academician from Chinese Academy of Engineering. He is specialized in turbofan engines.

https://twitter.com/i/web/status/1602687065749131271

Video by @星辰大海SLC on Bilibili.

Isn't there a J-20 which undergone flight test late last year that was fitted with one WS-15 and the other one being AL-31? Or this time is different, with both engines of the J-20 being WS-15?
 
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siegecrossbow

siegecrossbow

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ACuriousPLAFan said:
J-20 fitted with WS-15 already taken its maiden flight. Apparently the speaker is a famous academician from Chinese Academy of Engineering. He is specialized in turbofan engines.

https://twitter.com/i/web/status/1602687065749131271

Video by @星辰大海SLC on Bilibili.

Isn't there a J-20 which undergone flight test late last year that was fitted with one WS-15 and the other one being AL-31? Or that this time is different, with both engines of the J-20 being WS-15s?
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OG video. 9:45 mark.

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Botnet

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zbb said:
Who says J-20 has higher RCS than F-35?
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The simulation above, and all the western analysts? I haven't seen anyone saying otherwise.
zbb said:
Also, having canards does not mean high RCS. There are plenty of stealth designs with canards other than the J-20, including the American X-36.
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But none in service besides the J-20, and none entering service in the near future.
 
sunnymaxi

sunnymaxi

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ACuriousPLAFan said:
J-20 fitted with WS-15 has made its maiden flight. Apparently the speaker is a famous academician from Chinese Academy of Engineering. He is specialized in turbofan engines.

https://twitter.com/i/web/status/1602687065749131271

Video by @星辰大海SLC on Bilibili.

Isn't there a J-20 which undergone flight test late last year that was fitted with one WS-15 and the other one being AL-31? Or this time is different, with both engines of the J-20 being WS-15?
Click to expand...
Testing begun in summer 2021. but they confirmed the news after 16 months. this is Chinese philosophy, once they satisfy with the product then announcement. it means WS-15 passed critical initial air test. good news indeed.
 
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Botnet

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Atomicfrog said:
It's a simulation...whatever number and bravado on RCS is quite futile. The most important thing is that J-20 have way lower RCS than any other fighters in China inventory and most military aviations in the world. RCS vs Canard is some kind of conjunctures for cheap talks, no sound proof on that.

Canards provide an advantage in range because of providing positive lift while a tail configuratiion give negative lift, to counter front heavy fighter, producing drag and reducing lift. New airliners try to circumvent that with tail heavy configuration, putting weight on the tail for it to provide positive lift to save fuel. Tail heavy is realy bad for manoeuvrability and in stall condition, quite hard to save. So no tail heavy fighter with tail to save duel. Canards do the trick.
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So it trades RCS for maneuverability? Will that make it a better at dogfighting and bvr engagements than the F-35?
 
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Atomicfrog

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Botnet said:
So it trades RCS for maneuverability? Will that make it a better at dogfighting and bvr engagements than the F-35?
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It trade look, for better range. It's a design philosophy and US never liked canards aircrafts design and going that way means losing competition to other bidders. Us don't have a lot of experience with canards design and most of their delta aircrafts where duds...so it push them to tail design a lot more.

Canards aircrafts have usually worst flaps efficiency too, less good for carrier landing but France got the Rafale...so probably not that bad. It's a design choice more or less. You trade something to get something else.

Like I said, RCS vs Canard is some kind of conjunctures for cheap talks, no sound proof on that. So it's blowing air to say it reduce RCS or make it bigger...
 
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Red tsunami

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ACuriousPLAFan said:
J-20 fitted with WS-15 has made its maiden flight. Apparently the speaker is a famous academician from Chinese Academy of Engineering. He is specialized in turbofan engines.

https://twitter.com/i/web/status/1602687065749131271

Video by @星辰大海SLC on Bilibili.

Isn't there a J-20 which undergone flight test late last year that was fitted with one WS-15 and the other one being AL-31? Or this time is different, with both engines of the J-20 being WS-15?
Click to expand...

Supplement:
He said: "The fourth generation engine, which is used by the J-20, has not been officially equipped but has flown for the first time."
 
ZeEa5KPul

ZeEa5KPul

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Botnet said:
When there's no one saying otherwise, I assume they're right.
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You are wrong twice. The most credible sources say otherwise and you assume incorrectly.
Botnet said:
OP was talking about there were stealth designs with canards, but there's none in service, and likely not in planning for the foreseeable future. There's a reason for that.
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The reason for that is that CAC has been the only designer to make it work.
 
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