J-20 5th Gen Fighter Thread IV (Closed to posting)
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Dizasta1
Senior Member
Can Anyone Explain The Engines?
I believe the one on the top-side of the picture is th Chinese engine and below it is the Russian one.
ludasmatyi
Junior Member
Is it doing thrust vectoring?
Equation
Lieutenant General
It sure looks like doesn't it? But it could be a shadow effect. I've never heard of a thrust vectoring on one engine before (looks like it to me).
NYET! could have a Russian engine but very unlikely to have thrust vectoring at this stage? AFB, old pic?
Can Anyone Explain The Engines?
Good catch. It looks like they re-engined one of 2001's nacelles. COULD lend credence to the theory that they sacrificed operation life of AL-31s to increase thrust for flight testing.
MiG-29
Banned Idiot
Can Anyone Explain The Engines?
no idea, but if one is a Al-31 the other must be a WS-10 modified, but who knows i have no idea but certainly it looks like Al-31
Pretty sure both are AL-31s.
MiG-29
Banned Idiot
is difficult to opine, since i do not what engines are, they seem Al-31s, if that is the case, J-20 has a very degraded performance since it is even heavier than Su-27, but that is just a pure supposition since i do not know it it has Al-31.
Plus i do not know when they fit more powerful engines than Al-31s.
Who knows?
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Agreed and I think - even my own early assesment - all ideas about a WS-10G version were false. These are two AL-31FN-versions and IMO one with the zig-zag-painting on and one without.
PLEASE be careful. We all know that the J-20 is NOT larger or longer than the Flanker, as such to assume it is heavier is pure speculation.
I agree with You that is surely limited in its performance until the final WS-15 arrive.
Besides that I learned from a Russian source, that CAC was indeed able - similar to the J-10 deal - to purchase a J-20 tailored version of the AL-31FN incorporating features from the M1 or even M2. Sadly no additional information, but if this is correct, a version with 132-145 kN could be indeed a suitable interm engine.
Deino
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