PLA next/6th generation fighter thread

[gullible]

That configuration is ridiculous based on what we know so far imo.why need 3 engines? One result by doing this is pushing the thrust-to-weight ratio to be close to j20’s, right? If it’s really only just a jh-xx, why bother to add the 3rd engine to mess up the weapon bay? 2 ws15s are good enough to power up a 60-ton level jh-xx with 2 intakes on the back, benefiting the weapon bay capability as well. In other words, to have such a high kinematic performance with so many sacrifices, you don’t put the intakes on the back. BTW, you never put the intakes right behind the cockpit to inhale the pilot during injection. So what your friend described are highly questionable to me

that engine can be switched off before the pilot does so...

 

[GTI]

I think it would be cleaner to just have two intakes that each have a branch which joins together for the central engine -- additional intakes are a source of signature returns and complicates external shaping.

Of course that needs to be offset by the need for the side intakes to be correspondingly larger versus if they were each only feeding a single engine versus "one and a half" engines... But my gut tells me it would be preferable.

What about intakes below, on the sides and above?

Before anyone laughs at my poor description, I mean something similar to that

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.

 

[Blitzo]

What about intakes below, on the sides and above?

Before anyone laughs at my poor description, I mean something similar to that

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.

Those I would consider to be a variation of having two side intakes, and it is not particularly important to differentiate in the previous conversation because it was more debating the number of intakes and whether the placement would be dorsal or not.

 

[sheogorath]

If it ends up having inlets on top, how like it could use a design similar to that of the very early PAK-FA fan renders?. Though I'm not sure if the NACA-esque inlets are even capable of providing enough flow to the engines in certain flight regimes?

 

[AndrewS]

Oh my this looks MUCH more pleasant. The difference is astounding.

Remember the patent about folding/conforming tails we saw a while ago? I think the J-XD will really have to employ this in order to maximise all-aspect stealth to make it truly a head and shoulders above a standard 5th Gen.

Is it more accurate to say broadband rather any all-aspect stealth?

My understanding is that small control surfaces like tailfins generate a radar return when hit by low-frequencies like VHF.

So if you can fold the tailfin and make it part of the larger overall wing shape, you get broadband stealth across the range of radar frequencies.

And all-aspect stealth is more about making the rear-exposed engines stealthy?

 

[Alfa_Particle]

Is it more accurate to say broadband rather any all-aspect stealth?

My understanding is that small control surfaces like tailfins generate a radar return when hit by low-frequencies like VHF.

So if you can fold the tailfin and make it part of the larger overall wing shape, you get broadband stealth across the range of radar frequencies.

And all-aspect stealth is more about making the rear-exposed engines stealthy?

You're right. Mistake from my part. I did mean broadband stealth, but it'd help all-aspect stealth to an extent too. You no longer have a giant reflector on the sides.

 

[Nx4eu]

I'm still the skeptical type about the folding rudder concept

model is a bit messy but ill include this underside angle

 

[Deino]

I'm still the skeptical type about the folding rudder concept
View attachment 141269View attachment 141270View attachment 141271View attachment 141272View attachment 141273View attachment 141274View attachment 141275
model is a bit messy but ill include this underside angle

looking good, in fact very good … my only concern is that the guy told me there would be an air-intake on top of the fuselage!

 

[Nx4eu]

looking good, in fact very good … my only concern is that the guy told me there would be an air-intake on top of the fuselage!

That is indeed what I also believe, as the top intake optimizes stealth against lower frequency bands and I think broad band stealth is a higher priority than maneuverability, but others may think differently, I still believe this aircraft will be more a tactical fighter bomber than multirole air superiority fighter.

I just can't get out the 'ugly' aspect out of my mind, side intakes are way too cool to be called ugly. It must have a top intake.

Guess I'll have to re-do the model again...

 

[ACuriousPLAFan]

I'm still the skeptical type about the folding rudder concept
View attachment 141269View attachment 141270View attachment 141271View attachment 141272View attachment 141273View attachment 141274View attachment 141275
model is a bit messy but ill include this underside angle

Could you also indicate the likely locations of the internal weapons bay(s) and landing gears, if possible?