Breaking: First F-47 Sixth-Gen Fighter Already Being Built, Expected to Fly in 2028

[Oscar]

A lot of American posters here dismissed the J20 as being a "true stealth" because it had canards... So, just replaying that same concept by some of the American posters here back at them for their "6th Gen platform" that it seems to have canards.

Every side has jingoistic retards

 

[RedRock]

Someone has already posted the reason why the us canards are different than the chinese. Chinese canard use hydraulics while this American jet apparently does not. Big difference, actually massive. The cannard movement is dictated by airflow thereby not allowing any increase in the RCs while the chinese canard designs do increase the RCS. In time we will tell who is right.

And let's be honest, do you all actually think us engineers are dumb to not know the advantages and disadvantages of canards and if they have chosen them now it must be because they have figured out a way of making the most of it without losing out on stealth.

Yes the Chinese are catching up and yes they are ahead in manufacturing, but technologically the US is way more advanced. Fact. The Chinese compare there latest jet with the f22, a 20yr old aircraft or the f35 which is also pretty old as compared to the j20. Highly doubt we will ever see both in combat against each other but wouldn't that be a sight.

 

[AZ_HighCountry]

Folks, remain on topic.

I see the other mods have been busy minding the store while I've been away today.

 

[Nuffle]

Someone has already posted the reason why the us canards are different than the chinese. Chinese canard use hydraulics while this American jet apparently does not. Big difference, actually massive. The cannard movement is dictated by airflow thereby not allowing any increase in the RCs while the chinese canard designs do increase the RCS. In time we will tell who is right.

There is no evidence that they are different.

Furthermore, contrary to what you are stating, aeroelastic canards use flexible composites that twist at specific speeds and angles; this passive deformation can smooth out aggressive radar profiles. It may limit the increase in RCS, but it does not prevent the increase in RCS.

Note that when a radar wave from an enemy fighter hits the aircraft, it begins to travel along the fuselage, inducing surface electrical currents as if it were an electromagnetic "film."

If the fuselage is perfectly smooth, this wave will travel continuously along the structure until it is electromagnetically directed into empty space. And that is exactly where the shape geometry design comes in.

If, during its path, the wave encounters a discontinuity (aeroelastic canards will have one), even on a millimeter scale (be it material roughness, a dent or misalignment in a fitting, screw cavities, or rivets), this current suffers an abrupt break, and as a result, the energy is diffracted and dispersed in various random directions, including towards the enemy radar antenna.

Since radar operates at high frequencies, i.e., with very short wavelengths, it is perfectly capable of detecting this return echo.

See the image above of the F-47 where there is a clear surface misalignment between the canards and the aircraft fuselage; this clearly denotes a small empty space that the wave will travel through and be directed towards, generating the return echo.

Your assertion that Active Aeroelastic Wings would prevent any increase in RCS would not be possible.

 

[Starlord]

View attachment 200424

They hint to it in the artwork as well. It’s logical to conclude AAW will be incorporated and speculating is what we do as defense enthusiasts.

It’s the technology required to achieve ELO on a tailless fighter yet maintain extreme maneuverability at the same time.

The Cockpit part looks very UFO-ish, almost like eyes of those Grey alien concepts.

 

[VCheng]

See the image above of the F-47 where there is a clear surface misalignment between the canards and the aircraft fuselage; this clearly denotes a small empty space that the wave will travel through and be directed towards, generating the return echo.

You do realize that the image above is just a rendering, and not the real thing, right?

 

[niubi]

This aircraft will probably have a christmas tree planform. The render presented by Trump isn't far from how it really looks. Combining X-36 and Bird of Prey concept technologies. The video also tends to show this planform.

The radome area has an aligned trapezoidal geometry to it just like the rendering.

Yes while AAW applied to canards will reduce RCS considerably because it can do away with joints and gaps just like J-36's split rudders are seamless, canards themselves need to be materially managed to make them less visible to radar. J-20's canards as a 5th gen rather than 6th gen still has gaps and joints no matter how well the engineers designed it. Same with F-22's horizontal stabs but F-22's horizontal stabs are hidden in more frontal angles than J-20's canards which are always exposed out front.

Materially though, all of them are well treated. It may be the gaps and the geometry that is the main issue. No doubt by 6th gen, materially they are reaching a perfect state and just geometry is the issue and gaps and joints are overcome where required by bendable skin, thus making canards for F-47 a non issue in terms of stealth.

 

[niubi]

It is interesting that J-36, J-50 and F-47 all make very different approaches to designing supersonic capable VLO fighters. Next generation VLO requiring fewer surfaces but making that into a supersonic design is the challenge.

Flying wings are not supersonic capable despite having no conventional stabilisers. So they should not be counted in the same category. These three are the first and only known supersonic, stab-less aircraft designs in human history.