I expect that for almost all flight regimes with the exception of takeoff, landing and extreme maneuvers, the wingtips are fixed and do not handicap stealth. In an attack run or high stress air to air combat, the aircraft has been exposed and it must open it's bay doors for weapons. So in that scenario it does not matter how much the wingtips negate stealth.
Add as well: Those are tiny control surfaces and any radar cross-section increases caused by them, particularly at high altitude and distance from the source, would be minimal compared to the potential increase as a result of banking. If you can turn the craft with such a tiny surface instead of banking it, you may benefit stealth instead of harm it
Actually, this is a genius idea! The fact that this "aileron" is located at end of the wingtip will increased the momentum for the role and for the yaw movement and the responsiveness. This can increase the the jet maneuverability and it can act like a small "rudder". Of course this will never replace a real rudder, but it's far better than nothing.
@@BOZ_11 Because in the other picture, we can see the real aileron. Also, a classic aileron has very little influence for the yaw movement. If the classic aileron and the "neo-aileron" rotate in the opposite direction, this is going to nullify the role movement. But their drags will create a great amount of momentum for the yaw movement which they act like a rudder.
@ but the location doesn't define whether a flap is an aileron or not. EDIT: so long as it's changing aerodynamics it's an aileron (whether it's yaw, pitch, whatever)
if you look to the left vectoring nozzle, it's slightly looking up (if you see it) maybe it's coupled with the right wingtip to counter the excessive yaw/roll depending on the aimed manoeuvre. Also, I think the tip vortices are being strongly at play here in a way that is stabilising the structure aeroelastically without need of penalising extra weight (F18-AAW comes to mind), but I need to investigate this further past mere intuitions... top work as usual!
Yes they probably move the vortices inward, and yes it's stabilising the plane and helps with manuvering which normally a stabilisator and rudder perform on classical planes.
The only similar thing I know that comes to mind were the Russian rotating rails for the wingtip missiles, experimented for the Flanker family. The J-50 case, though, has nothing in common with missile rails. I find Millennium's explanation fully logical, but it leaves me wondering the same question as him: Why did they do that? On a different note, the J-35 as pictured in the video looks an awful lot like a Flanker with a modified front section... :)
first you gotta have the right material to make the body of the plane, so that it doesnt tear apart under that kinda torque, then your on plane computer gotta be good to calculate within milisec, then, you gotta have to good enough control system to carry out whatever number the computer crunched out.
Not at all. You can estimate these kind of control derivatives with common VLM software and later test in CFD/wind tunnel. Even if its highly non-linear you can still linearize around some conditions and do some mathematical tricks to blend in the control laws.
I think you have answered why. A rotating tip to give extra roll/yaw authority in low speed flight that might not deflect in cruise conditions. This must be important to compensate the wobbling of tailess aircraft at take-off and landing. With fly-by-wire it is definitely possible to control the axis coupling.
Tailless Airplanes tend to undesired dutch rolls, this wingtip feature stabilizes the yaw axis, and therefore generates better transversal stability. Similar to the B2 which uses spreading flaps to induce drag when rolling and or yawing. The Horten brothers solved the problem in the most elegant way with reverse drag (meaning basically thrust)at the wingtips enable by the bell shaped lift distribution, without any need for complex flight control computers.
Meanwhile in America Lockheed Martin executives are planning how to extend the NGAD program through thirty years of delays and overpricing to make their shareholders happy and give themselves tens millions of dollars in yearly bonuses?
@@rink2343 America should invest in advance surface to air interception systems, including some that uses satellite reconnaissance, multispectrum detection, ultraviolet and infrared sensors, similar to the ones used to detect ICBM launches. Then new advanced and massively produced long range air interception missiles, launched from aircraft, boats and land vehicles. It would be cheaper, more efficient and cover more terrain.
Here is the answer. This desing is to utilize and control the wingtip vortices. It's not a wingtip device to minimize the efficiency losses but an additional vortex generator + winglet to tune wingtip vortices.
I also had similar thoughts on this. If the aircraft will eventually be carrier launched, can this mean that these tips are vortex generators for better ground effect=higher payloads? It sure as hell though looks like it enhances manoeuvrability.
The wingtips could rotate in opposite directions to increase the roll rate and likewise only using one wingtip would result in a slower roll rate. It’s definitely a new approach to an old problem. It might not be stealthy but it is creative.
@@rink2343it's because this is much more stealthier than the traditional fifth gen design and older design. Sure, not having it would be better, but this is a fighter, so it needs some level of maneuverability, so this is a compromise that drastically increases stealth versus fifth gen, but also allows maneuverability, which a fighter needs just in case. The j 36 doesn't have that and has even more salt, but it's also not expected to engage in any dog fight
You’re cute lol America flew it’s 6th gen a few years ago, they just don’t flex theirs publicly like the Chinese and Russians do for the illusion of something for their starving people to be proud of. Whatever china has is nowhere near what’s at the skunk works. Sorry to burst your bubble. Example, the raptor flew in 89, it took 20 years for china to make a stealth fighter and only after they got the f117 that got shot down, and stole everything the could in hacks. So yeah……. China haters could care less. No one is coping cause china flew a new plane. But keep telling yourself that I guess
This is very cool I think I like the way the Chinese engineers think. I tend to be in trouble with my engineering friends when I speak highly of the Chinese solutions and work around and I’ll hear things like if they’re so good how come we aren’t doing it?…or something defensive about US capabilities being the best in the world…I normally look off into the distance and if they could see what I was thinking they’d see??????why? Says who? Then I rejoin a conversation that’s still all about I how the US is so much better. I hate betting against my own people but like I said…I like what the Chinese are doing it’s very cool. I just wish I knew more. Thanks for your update Brother I’m looking for anything you can dig up.
OpenAI said that we would many many nuclear power plants to power the future of AI, DeepSeek came along and said "hold my beer." This alone proves the Chinese engineers are extremely capable. Your friends watched too many CNN and FOX news.
nice time you involved in this kind of argument, just ask them a simple question. usually, in their classes in university, who's are the top students? quite likely chinese.....I remember my A-level, some chinese guys score 100% in all papers....crazy.
It was pretty obvious that eventually the chinese aerospace industry would mature enough to develop their own products beyond what the american and russian are stuck because of corporate and financial reasons. I know this is a pure engineering community but I think it's important to understand how the aerospace industry is organized in every major player in the world and how they interact with their governments. Like the exploitative relationship of the american industry with the taxpayers, or the perpetual funding problems of the russian industry, the stagnant state of the european industry, the ambitious but immature state of the indian industry and whatever the fuck is going on with the chinese industry.. I don't remember anyone making a serious analysis of how it works.
Positioning the control surfaces at the wingtips maximizes the yaw moment they can generate. Additionally, rotating the entire wingtip increases the size of the control surface compared to a traditional aileron. I believe this combination of features will enable the aircraft to execute sharp banked turns and other aerobatic maneuvers without the large vertical tails typically seen on other air superiority fighters
Short version: rotatable wingtip control surfaces may provide increased lever-arm for roll control and may also provide yaw control in an airplane without vertical stabilizer(s)/rudder(s).
The Chinese are smashing it, with their modern technology on every level. Sometimes you've got to just admire progress & give them the respect they thoroughly deserve. Happy Chinese New Year to every Chinese citizen. I'd love a world where all countries got along & shared their developments for the greater good of mankind.
Culturally Chinese people call it "New Year" or "Spring Festival" or Lunar Spring Festival - not Chinese New Year, and the collective versions celebrated across East Asia is translated as Lunar New Year. Just like in Peru, Peruvians call their famous food "chicken" and not "Peruvian chicken."
@Loubie2005 Yes it is. Chinese New Year is the Lunar New Year and falls on the same day (and both are western terms). Europeans and European-Americans call it Chinese New Year, but people in China and East Asia call it the Spring Festival, Spring New Year, New Year, etc.
I suspect it is only used for slow flight(landing). It probably offers yaw/roll control without sacrificing too much lift. Important for carrier operation. Especially for a blended wing/body-design like this. It may also help control induced drag at the wing-tips, again for low/slow flight.
Indeed. Another noticeable thing is the underbelly of its fuselage, a straight through middle gap stretching from the intake area to the aft body to provide extra stability for landing, while defying some stealth design rules.
It’s pretty funny how excited you guys are over “a 6 generation fighter” that is actually a long range bomber that also like has air to air capability (just like the B21), unless they’ve decided to make their fighter three times the size of any fighter ever made before.
BTW, the PRC hasn’t done anything yet. That was a tech demo. The US has had multiple 6th gen tech demos flying for years now. If the PRC is the first to get a sixth gen fighter into production then they can take credit for being the first to do something.
The aero-isoclinic wing design is one where the tips of the wing can be rotated and repositioned to function as wing tip elevons for stability and control purposes. The elevons act as elevators when rotated together and act as ailerons when rotated in opposite directions. It was believed that this novel wing design could possess favourable qualities for producing tailless aircraft. This concept was proposed by 2 British men David Keith-Lucas and Prof Geoffrey TR Hill in the 1940s for a potential flying wing. The Short SB.4 Sherpa was a British experimental jet built by the Short Brothers in the 1950s to test the aero-isoclinic wing. The Short Sherpa had a tail and flew successfully; however, the wing underwent no further development and the project was shelved. Kudos to the Chinese for developing the aero-isoclinic wing to its envisioned flying wing form ! Chapeau! There is also speculation that the J-50 has 2D thrust-vectoring hence the square/ rectangle nozzles.
It's without any doubt a technology demonstrator. They are testing some solutions here and we will probably see in a few months some new demonstrator or a zero series model based on this one.
It's more likely in its final phase of development. Mass production isn't far from this point. They did with J-20 the same way. Already have 300+ J-20 in just 5 years.
@@Dayu-b2wunless they are also testing new stealth coatings as pert of the testing regime. You didn’t really see that much of lemon yellow YF-22s or YF-23s, even though they were “just tech demonstratiors”.
Thanks Gus! That tiny little tip seems to be a nifty solution for "something"! I can see Chinese engineers giggling and keeping the world guessing! Well, knowing you a bit, you are digging and rooting for information like my Terrier digging holes for his bones! Looking forward to more interesting details! Have a lovely day!😉
Those rotating wingtips would provide much better roll and stability control than just elevons or spoilers. However, they are a big problem for stealth. Every time those wing tips move out of zero position there is going to be a big radar return from them.
It's possible these wingtip devices are only employed in slow flight regimes, i.e. during takeoff and landing and cruise rather than near-supersonic or supersonic flight. This would preserve stealth in contested airspace.
Thanks for staying on top of things. The control surface setup for this thing, as far as we can see, is unconventional. That doesn't mean it will be any more or any less effective, just different, and will doubtless bring with it a different set of problems from more conventional setups. Keep at it. This is getting more interesting the more we learn.
I saw a demo out of China recently that showed how they had built articulating 3D printed arms, like an octopus, that could rearrange themselves for specific tasks. If that technology was deployable, it could be used in wing design to configure itself in complex ways, depending on the aerodynamic requirement.
It acts as a wingtip and winglet. Adding lift and vortices control as well as increasing roll and adding additional yaw control in conjuctions with the wing control services.
Strikes me as a good alternative to split ailerons or drag rudders, deflect the wingtip one way and the aileron the other and you have made an effective rudder input to the controls. Maybe better than the B-2's drag rudders for a fighter?
So true. Even back in the 1990s when we were, I’m talking about the company I work for as an engineer, we were a subcontractor to the international space station, NASA forced the subcontractor to promote all the women and demote all the experienced men that actually did the work. No kidding. There were not any black lesbians because there were no black lesbian engineers at that time, and probably still today true
The strange thing is that their engine tech doesn't seem to have moved forward at the same rate. They may have moved forward, but they don't seem to be showing it. The rear end of their planes still look to have Russian knock off engines, and there seems to be no attempt at designing stealth into the nozzles. This could mean that they will be vulnerable to attack when egressing an area. Then again, that may not be looked at as important when the idea is to be heading towards a target and spamming missiles at it. It implies that the target and it's defenses will be too busy dodging or firing at missiles to do much about the aircraft firing the.
Not sure if this can add anything to the discussion, but I remember that the concept of AMT (All moving Tips) was investigated in the FATE and ICE studies made by the Americans. I wonder why these solutions don't seem to be adopted in later US designs and are, instead, being investigated by the Chinese
I guess same reason why russia was first developing combat lasers and was first to abandon them (and then was used to justify decades long development of American combat lasers based on few fairy powerful experimental laser jamming systems that they could acquire data for) - americans could not make them useful with tech available at the time, so idea was abandoned entirely. But chinese never tired that, but evidently are determined to find out how useful those actually are, while trying to get ahead of competition (old nasa kind of stuff, if you ain't making overkill, you ain't making good enough plane).
It could be used for low speed/high angles of attack control. Remember that some fighters, like the F-15, don't use the ailerons on supersonic flight, relying entirety on divergent move of the stabilators for roll control. This is to avoid twisting the wingtips at very high speeds.
American designers are gonna copy parts of both thense new Chinese jets, bet on it! And the hylarious thing is that many "fans" are gonna claim genius for those copied designs.
I must admit that I also don't understand the wingtip actuation. The yaw-roll coupling must be very significant. However, that might mean that the Chinese engineers expect significant control authority from small deflections in the wingtip, which would compromise the stealth of the aircraft less. Just speculation from another aero engineer
i've experimented with that type design on Kerbal Space Simulator (KSP) ... it most certainly causes 'structural stress' related issues and although the Roll Factor is increased substantially.... at extremely high speeds it becomes incredibly dangerous... dangerous to the point the craft may very well break up with the slightest of roll.
When a swept wing plane yaws to the right it will also roll to the right. But the wing tip rotating would cause both a yaw to the right and a little extra lift to counter the roll. So it may be able to yaw with less coupled roll. So interesting and innovative. I imagine if only one deploys it will yaw the plane but if both go in the opposite directions that can help the ailerons or spoilers roll the plane. Split ailerons for yaw can't help roll the plane.
Is the J 36 also equipped with these flexible tips? I saw something moving on the wing tips and next gen design concepts show flexible surfaces as superior controls.
When rolling, wing tip ailerons will be controlled in opposite directions (one pulls the wing up and the other pushes the wing down). This cancels out the induced yaw. To get maximum roll torque, the ailerons were placed as far as possible from the fuselage center of rotation (torque = force times distance from the roll axis). An interesting possibility of placing the ailerons on wingtips is to link multiple planes together wingtip to wingtip. This will increase range by 20 to 40%. The same reason gliders with 50:1 drop rate have such long wings, and why birds fly in a V shape configuration. Note, a proposal to extend bomber range was made to fly them in groups similar to how birds fly.
If the ailerons are used in lieu of a rudder, then every time the pilot pitches an aileron up for yaw he will also get roll. I believe the designers solved this problem by allowing the pilot to open the aileron up and down at the same time (a split aileron that can open into a V shape for yaw and also rotate the aileron for Roll). The increased wingtip drag will induce Yaw which is critical for landing during a crosswind. Note how the distance of the wingtip aileron will give maximum yaw torque. An elegant design with better torque than provided by a rudder which is closer to the yaw axis of rotation.
Perhaps there is a mode where its used as a yaw dampner as well, with an aileron countering the roll while the small deflection dampens yaw. It can also serve as a rudder on the ground as well as an air brake. Is it a worthwhile price to pay for the elimiation of the tail? Seems so.
A few years back I mentioned on this channel that the future belongs to adaptive wings. This is a step towards that. In the future such surfaces will be integrated into the wings curvature, actually flexing it locally. Like a bird reshuffling it’s feathers. Or more precisely: like a pterodactyl reshaping the fleeces in its wings. Or the Wright brothers wing warping system. another step on this route was NASA’s Mission Adaptive wing project demonstrator based on a F111. It however only provided a unidirectional approach as far as flexing goes. I however envision outwardly singular leading and trailing edges shielding internal actuators. The stealth disadvantages will then mostly disappear, offering near perfect radar dispersion. The fact that the individual surfaces on this aircraft are smaller might however already help to lessen the effects caused by conventional tails. Dispersion is a more important / realistic goal then perfect stealth. A few smaller reflections can still make an aircraft less detectable at a distance then those from a single big surface. In other words. Sometimes a bit of lateral thinking can go a long way. 😁
It seems to be an extremely un-stealthy addition, there must be some overwhelming aerodynamic advantage to justify it. Perhaps it's related to very slow landing and take-offs? Just speculating, but perhaps these wingtip ailerons only operates at very slow speed, but retracts at normal speed (for stealth and low drag), allowing for an alternative control mechanism (flexible aerofoils?) to operate during cruise.
(Why do we have the vertical tail fin?) Drag on the wingtip during banking creates adverse yaw. The rotating wing tips, as opposed to wingtip spoilers like the other Chinese aircraft, #imo are to reduce drag at the wingtips at various angles of attack and role, for stability. The Prandtl Wing.
What if the drag is used to increase yaw authority, biasing it towards whatever direction of pitch is more appropriate for the input commands? That would explain why one was partially deflected and the other was still aligned with wing. I suspect it wouldnt be used in high roll/low yaw inputs, due to its drag penalty and stealth disadvantage.
First guess: they had discovered a flutter problem too late, then put a band aid on it, and combined it with a feature, and are now puzzling everyone with that new feature.
The Boeing B70 Valkyrie Mach 3 bomber had flaps on the ends of the wings. When these flaps were aimed down they created a vortex that resulted in added lift. They might also be used for flow control to increase maneuverability.
Lol🤣 Honestly they only did licence building and modifying of russian aircrafts in the past... I love russian aircraft design! Only slowly they did their own Designs like J-10, J-17... but know they are keeping up very fast and going to overtake!!!😱😎👍 There's a lot going on now in china! Different J-20 versions, J-31/J-35, J-36, J-50, H-20... Wow! They don't loose time! They do! Looks like US is a bit behind now...🤔😉
@@einautofan6685 For a long time they made their own version of russian equipment as they didnt have a solid foundation for their own equipment until the last 10-15 years
I know very little about aeronautics but I do know that wingtip vortices are a very significant factor. Could these control surfaces at the wingtip have some role in shaping and directing the vortices, potentially increasing or decreasing drag induced by the vortices or changing the balance between the drag induced by each wingtip vortex? The obvious assumption to make is that these control surfaces are related to roll, like ailerons, but what if part of their purpose is to act as rudders? Instead of a "flaperon", a "rudderon" - a single control surface for both roll and yaw control that works by manipulating the wingtip vortices? Heh... I think this might have the answer for us: "Lambda wing, as known as Λ wing, is named for its trailing edge containing forward swept and backward swept parts while its shape is similar to the Greek letter Λ." This new aircraft definitely fits that description. "Compared with delta wing and trapezoid wing, lambda wings have extremely low RCS due to the trailing edge configuration, larger aspect ratio and a higher cruise lift drag ratio" Seems to be a very stealthy configuration. "Gillard et al. introduced all moving wing tip (AMT) as a yaw control device and showed its potential excellent efficiency when used for yaw control on tailless fighter without side effect by rotation. These investigations demonstrate that adding auxiliary control surface for moment control based on tailless lambda wing configuration is of research significance." www.sciencedirect.com/science/article/abs/pii/S1270963823004054
Those control surfaces at the wing tips will of course influence the turbulent air flow in those places. Having adequate simulations for this kind of things requires a substantial amount of supercomputing power at hand. There are no possibilities for "intuitive" interpretations of the behaviour there.
It will be interesting to see if this feature makes it onto the production version. It wouldn't be the first time that an interesting aerodynamic feature eventually gets removed: for example the glove-vanes on the F-14 or the Krueger-flaps on the Tornado IDS.
The picture is taken from below. Could the structure have an up component as well as a down component that's not visible because of the angle of the picture? Like an airbrake it would allow yaw control in place of rudders.
Are we positive that it's rotating in that axis? It looks like it could be rotating downward to act more like a vertical stabilizer to increase yaw stability.
It seems a move that makes the aircraft look more like a bird than a fish; however, I feel at high apeeds the aircraft is acting more like a fish in water than a bird in air; hence, needing the tail/fin to yaw more than the wingtips.
Very interesting and unusual, can't wait to find out more about this! Really smart thought about the twin wheel nose gear configuration making a carrier use case most likely, I wouldn't have spotted that.
I think these wont move when the jet flies straight approaching an enemy where the stealth is needed. Once that distance is closed, stealth will matter less than manuverability so this does seem to make sense
I have no idea but if I understand your description it uses actuators. Is it possible to have these things for the purpose of monitoring movement or loads on that part of the wing, but NO actuators just data collection ? Take care.
This concept was from a university student that won flying competition in china. Proven with drone many yrs back faster n more agile than convention jet.
china has already started research on 7g birds. it uses the tick tock 'tack' approach. by the time 6g goes into production, 7g is ready and 8g will begin research stage
Ah, this is the tailless feature of a bird. Nasa had a break through in a mars project where a student first created a rc plane with twisted wing where the wingtips has negativ lift. This allows for a natural coordinated turn without rudders. The side effect is that you give up total lift for less drag. But as it's here mechanical and not wing feathers they can probably do both. Birds also don't have the wing tip vortices at the wing tip. They generate them somewhere around 20% inwards from the wing tip. So when a bird turns the outward wing is actually accelerated compared to the inward wing. Causing a low drag coordinated turn.
well, not if you can control when they are use. for example. separate control where it is use only engage in a dog fight. inactive during normal flight.
Maybe the wing tip is intended to cause flex (I.e., warp) across the entire wing for flight control purposes. Some type of flexible wing technology demonstrator.
I don't think differential surfaces at the wingtips is anything difficult to do in a flight control. They need something to replace the horizontal tail and that will work. The old F-16 analog flight control had a "mixer" that would mix lateral and longitudinal commands, giving one or the other priority, before sending position commands to the surfaces.
dude capabilities aside we’re getting some cool ass tailless designs🙏
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I've seen some renders with "ruddervators" that are normally (level flight) in line with the wing but when needed they'll move. Maybe there will be v2, maybe not, we'll see
Chinese fighter Overcapacity is making my head spin.
Yeah so fucking fast, it’s unbelievable.
What a time to be alive!!
Clearly the problem is the Chinese garlic you have been eating. This garlic has compromised your national security.
It’s only OVER-capacity if you don’t need them all. The Chinese need them all for what is planned.
@@Jack2Japanand what is planned?
I expect that for almost all flight regimes with the exception of takeoff, landing and extreme maneuvers, the wingtips are fixed and do not handicap stealth. In an attack run or high stress air to air combat, the aircraft has been exposed and it must open it's bay doors for weapons. So in that scenario it does not matter how much the wingtips negate stealth.
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who asked
@@VizzixI asked
probably it is only used at low speeds only for landing and take off to provide more stability at low speeds.
Add as well: Those are tiny control surfaces and any radar cross-section increases caused by them, particularly at high altitude and distance from the source, would be minimal compared to the potential increase as a result of banking. If you can turn the craft with such a tiny surface instead of banking it, you may benefit stealth instead of harm it
Actually, this is a genius idea! The fact that this "aileron" is located at end of the wingtip will increased the momentum for the role and for the yaw movement and the responsiveness. This can increase the the jet maneuverability and it can act like a small "rudder". Of course this will never replace a real rudder, but it's far better than nothing.
why did you put 'aileron' in quotes? it is an aileron, proper
@@BOZ_11 Because in the other picture, we can see the real aileron. Also, a classic aileron has very little influence for the yaw movement. If the classic aileron and the "neo-aileron" rotate in the opposite direction, this is going to nullify the role movement. But their drags will create a great amount of momentum for the yaw movement which they act like a rudder.
@@BOZ_11 maybe because it acts like an aileron but it is not located in the usual spot ailerons on traditional aircraft should be.
Couple it with thrust vectoring (queue rectangular exhaust) and you have a great air superiority fighter
@ but the location doesn't define whether a flap is an aileron or not.
EDIT: so long as it's changing aerodynamics it's an aileron (whether it's yaw, pitch, whatever)
if you look to the left vectoring nozzle, it's slightly looking up (if you see it) maybe it's coupled with the right wingtip to counter the excessive yaw/roll depending on the aimed manoeuvre. Also, I think the tip vortices are being strongly at play here in a way that is stabilising the structure aeroelastically without need of penalising extra weight (F18-AAW comes to mind), but I need to investigate this further past mere intuitions... top work as usual!
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@@Femboy_lover1611 🤓?
Yes they probably move the vortices inward, and yes it's stabilising the plane and helps with manuvering which normally a stabilisator and rudder perform on classical planes.
probably it is only used at low speeds only for landing and take off to provide more stability at low speeds.
The only similar thing I know that comes to mind were the Russian rotating rails for the wingtip missiles, experimented for the Flanker family. The J-50 case, though, has nothing in common with missile rails. I find Millennium's explanation fully logical, but it leaves me wondering the same question as him: Why did they do that?
On a different note, the J-35 as pictured in the video looks an awful lot like a Flanker with a modified front section... :)
You have to have some immense number-crunching capacity to implement such unusual control surfaces.
Yes modern aircraft have control assist from onboard computers. And autopilot assistance has never been more sophisticated.
You need immense number crunching to implement a tailess design in general
first you gotta have the right material to make the body of the plane, so that it doesnt tear apart under that kinda torque, then your on plane computer gotta be good to calculate within milisec, then, you gotta have to good enough control system to carry out whatever number the computer crunched out.
Not at all. You can estimate these kind of control derivatives with common VLM software and later test in CFD/wind tunnel. Even if its highly non-linear you can still linearize around some conditions and do some mathematical tricks to blend in the control laws.
Nah, just lookup tables and interpolations. One or two raspberry pis will do.
People hate it because it is Chinese but af an aviation entusiast it is pretty cool with some new designs.
Honestly I think it has more to do with fanbois acting like it is some earth shattering tech, when no knows anything about
It’s more so that they stole their design from American concepts and prototypes
they are scared of Chinese tech superiority and failing to contain China
3 engines great for stealth
same
I think you have answered why. A rotating tip to give extra roll/yaw authority in low speed flight that might not deflect in cruise conditions. This must be important to compensate the wobbling of tailess aircraft at take-off and landing. With fly-by-wire it is definitely possible to control the axis coupling.
Tailless Airplanes tend to undesired dutch rolls, this wingtip feature stabilizes the yaw axis, and therefore generates better transversal stability. Similar to the B2 which uses spreading flaps to induce drag when rolling and or yawing. The Horten brothers solved the problem in the most elegant way with reverse drag (meaning basically thrust)at the wingtips enable by the bell shaped lift distribution, without any need for complex flight control computers.
In English, professor?
Meanwhile in America Lockheed Martin executives are planning how to extend the NGAD program through thirty years of delays and overpricing to make their shareholders happy and give themselves tens millions of dollars in yearly bonuses?
Thats what they tell you!
@@auwz66 Even The Government Accountability Office have repeatedly reported of how corrupt and wasteful is the american military industrial complex.
@@rink2343 America should invest in advance surface to air interception systems, including some that uses satellite reconnaissance, multispectrum detection, ultraviolet and infrared sensors, similar to the ones used to detect ICBM launches. Then new advanced and massively produced long range air interception missiles, launched from aircraft, boats and land vehicles. It would be cheaper, more efficient and cover more terrain.
At the same time, how do you know for sure? @@auwz66
@@rink2343i bet all that's around you is ohio
Here is the answer. This desing is to utilize and control the wingtip vortices. It's not a wingtip device to minimize the efficiency losses but an additional vortex generator + winglet to tune wingtip vortices.
I also had similar thoughts on this. If the aircraft will eventually be carrier launched, can this mean that these tips are vortex generators for better ground effect=higher payloads? It sure as hell though looks like it enhances manoeuvrability.
Also it may as well do both.
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then it would work all the time and on both wings, this uses one side at a time, its a rudder suplement
@rcajavus8141 not necessarily. However it help maneuvering
The wingtips could rotate in opposite directions to increase the roll rate and likewise only using one wingtip would result in a slower roll rate. It’s definitely a new approach to an old problem. It might not be stealthy but it is creative.
@@rink2343it's because this is much more stealthier than the traditional fifth gen design and older design.
Sure, not having it would be better, but this is a fighter, so it needs some level of maneuverability, so this is a compromise that drastically increases stealth versus fifth gen, but also allows maneuverability, which a fighter needs just in case.
The j 36 doesn't have that and has even more salt, but it's also not expected to engage in any dog fight
China haters shouldn't watch this video !
They're in full cope and seethe mode right now, it's hylarious!
You’re cute lol America flew it’s 6th gen a few years ago, they just don’t flex theirs publicly like the Chinese and Russians do for the illusion of something for their starving people to be proud of. Whatever china has is nowhere near what’s at the skunk works. Sorry to burst your bubble. Example, the raptor flew in 89, it took 20 years for china to make a stealth fighter and only after they got the f117 that got shot down, and stole everything the could in hacks. So yeah……. China haters could care less. No one is coping cause china flew a new plane. But keep telling yourself that I guess
I agree
bu bu they stole it from my imaginary design !!
😭😭😭
This is very cool I think I like the way the Chinese engineers think. I tend to be in trouble with my engineering friends when I speak highly of the Chinese solutions and work around and I’ll hear things like if they’re so good how come we aren’t doing it?…or something defensive about US capabilities being the best in the world…I normally look off into the distance and if they could see what I was thinking they’d see??????why? Says who? Then I rejoin a conversation that’s still all about I how the US is so much better. I hate betting against my own people but like I said…I like what the Chinese are doing it’s very cool. I just wish I knew more. Thanks for your update Brother I’m looking for anything you can dig up.
Pride comes before the fall they say and hubris is not an attractive trait.
OpenAI said that we would many many nuclear power plants to power the future of AI, DeepSeek came along and said "hold my beer." This alone proves the Chinese engineers are extremely capable. Your friends watched too many CNN and FOX news.
nice time you involved in this kind of argument, just ask them a simple question. usually, in their classes in university, who's are the top students? quite likely chinese.....I remember my A-level, some chinese guys score 100% in all papers....crazy.
It was pretty obvious that eventually the chinese aerospace industry would mature enough to develop their own products beyond what the american and russian are stuck because of corporate and financial reasons. I know this is a pure engineering community but I think it's important to understand how the aerospace industry is organized in every major player in the world and how they interact with their governments. Like the exploitative relationship of the american industry with the taxpayers, or the perpetual funding problems of the russian industry, the stagnant state of the european industry, the ambitious but immature state of the indian industry and whatever the fuck is going on with the chinese industry.. I don't remember anyone making a serious analysis of how it works.
Just say that different cultures choose different paths and you can only say who chose the best path by the end of the road
Positioning the control surfaces at the wingtips maximizes the yaw moment they can generate. Additionally, rotating the entire wingtip increases the size of the control surface compared to a traditional aileron. I believe this combination of features will enable the aircraft to execute sharp banked turns and other aerobatic maneuvers without the large vertical tails typically seen on other air superiority fighters
Short version: rotatable wingtip control surfaces may provide increased lever-arm for roll control and may also provide yaw control in an airplane without vertical stabilizer(s)/rudder(s).
The fighter jet is looking cool as fuck.
The Chinese are smashing it, with their modern technology on every level. Sometimes you've got to just admire progress & give them the respect they thoroughly deserve. Happy Chinese New Year to every Chinese citizen. I'd love a world where all countries got along & shared their developments for the greater good of mankind.
Happy Chinese New Year, let's have fun together.
Culturally Chinese people call it "New Year" or "Spring Festival" or Lunar Spring Festival - not Chinese New Year, and the collective versions celebrated across East Asia is translated as Lunar New Year. Just like in Peru, Peruvians call their famous food "chicken" and not "Peruvian chicken."
@@Intranetusano, it’s Chinese new year not lunar new year
@Loubie2005 Yes it is. Chinese New Year is the Lunar New Year and falls on the same day (and both are western terms). Europeans and European-Americans call it Chinese New Year, but people in China and East Asia call it the Spring Festival, Spring New Year, New Year, etc.
hehehe my grandmother used to call the "new year" when she was alive... white man new year . not kidding 😇
I think the wing tips are for yaw control, as there is no conventional yaw system. It's probably stealthier not to have a fin.
Thanks!
Thank you!
Thank you for the fast follow-up to yesterday's video and bringing this design issue to light.
I suspect it is only used for slow flight(landing). It probably offers yaw/roll control without sacrificing too much lift. Important for carrier operation. Especially for a blended wing/body-design like this. It may also help control induced drag at the wing-tips, again for low/slow flight.
Indeed. Another noticeable thing is the underbelly of its fuselage, a straight through middle gap stretching from the intake area to the aft body to provide extra stability for landing, while defying some stealth design rules.
USA: The Chinese stole my design, which I haven't invented.
pretty much!
Interesting you think you have access to all of the designs we haven't used.
It’s pretty funny how excited you guys are over “a 6 generation fighter” that is actually a long range bomber that also like has air to air capability (just like the B21), unless they’ve decided to make their fighter three times the size of any fighter ever made before.
BTW, the PRC hasn’t done anything yet. That was a tech demo. The US has had multiple 6th gen tech demos flying for years now. If the PRC is the first to get a sixth gen fighter into production then they can take credit for being the first to do something.
@@The_ZeroLine wake up dude, this is the J-50 and you are talking about J-36
The aero-isoclinic wing design is one where the tips of the wing can be rotated and repositioned to function as wing tip elevons for stability and control purposes. The elevons act as elevators when rotated together and act as ailerons when rotated in opposite directions. It was believed that this novel wing design could possess favourable qualities for producing tailless aircraft.
This concept was proposed by 2 British men David Keith-Lucas and Prof Geoffrey TR Hill in the 1940s for a potential flying wing.
The Short SB.4 Sherpa was a British experimental jet built by the Short Brothers in the 1950s to test the aero-isoclinic wing. The Short Sherpa had a tail and flew successfully; however, the wing underwent no further development and the project was shelved.
Kudos to the Chinese for developing the aero-isoclinic wing to its envisioned flying wing form ! Chapeau!
There is also speculation that the J-50 has 2D thrust-vectoring hence the square/ rectangle nozzles.
It's without any doubt a technology demonstrator. They are testing some solutions here and we will probably see in a few months some new demonstrator or a zero series model based on this one.
Yes, thats what I thought too!😉👍
I doubt your statment. They wouldn’t produce such a well concept without it going into production.
tech demostrators doesnt get to have military paint, they wouldve been a lemon yellow plane, like an unpainted house.
It's more likely in its final phase of development.
Mass production isn't far from this point.
They did with J-20 the same way. Already have 300+ J-20 in just 5 years.
@@Dayu-b2wunless they are also testing new stealth coatings as pert of the testing regime.
You didn’t really see that much of lemon yellow YF-22s or YF-23s, even though they were “just tech demonstratiors”.
Thanks Gus! That tiny little tip seems to be a nifty solution for "something"! I can see Chinese engineers giggling and keeping the world guessing!
Well, knowing you a bit, you are digging and rooting for information like my Terrier digging holes for his bones! Looking forward to more interesting details! Have a lovely day!😉
There is no bone to be dug
The Chinese are not stupid enough to let you guys know what they're up to
That's exactly what we are saying! You got it!👍😊
Meanwhile, another F-35 fighter jet crashed at Eielson Air Force Base, today!
Damn, those things are flying traps.
@@olisk-jy9rz 中国视频网站上飞行的6代机速度非常快
Here's to the algoritm. Thanks for your excellent presentations.
Love the length of the video
Without vertical tail, you need a different angle of attack at the tip to avoid outward yaw, birds uses this solution.
Those rotating wingtips would provide much better roll and stability control than just elevons or spoilers. However, they are a big problem for stealth. Every time those wing tips move out of zero position there is going to be a big radar return from them.
It's possible these wingtip devices are only employed in slow flight regimes, i.e. during takeoff and landing and cruise rather than near-supersonic or supersonic flight. This would preserve stealth in contested airspace.
@@robertsneddon731 Great point! Didn't even think of that. Would make slow speed manoeuvring much easier and safer.
Absoltutely agree. I think they are being prototyped specifically to test for adverse landing scenarios.
Trust vectoring can handle minor course corections.
Probably a ping the size of a bird but still visible. this looks like a fighter so I'm assuming they wouldn't be used until they have already engaged
Yaw control in an aircraft without vertical stabilizers or rudders sound like a pro, not a con.
Thanks for staying on top of things. The control surface setup for this thing, as far as we can see, is unconventional. That doesn't mean it will be any more or any less effective, just different, and will doubtless bring with it a different set of problems from more conventional setups. Keep at it. This is getting more interesting the more we learn.
I always enjoy your videos. You are very good at explaining technical terms, so a layman can understand. Keep up the great content.
I saw a demo out of China recently that showed how they had built articulating 3D printed arms, like an octopus, that could rearrange themselves for specific tasks. If that technology was deployable, it could be used in wing design to configure itself in complex ways, depending on the aerodynamic requirement.
Nice analysis brother. Love ❤ from Bangladesh🇧🇩.
The wingtip is a roleron. An active lift device perpendicular to the longitudinal axis, in lieu of a rudder
But that also changes wing lift-coefficient. So, Pitch will also be introduced.
It acts as a wingtip and winglet. Adding lift and vortices control as well as increasing roll and adding additional yaw control in conjuctions with the wing control services.
I think it is an "aero-isoclinic" wing design . It is the first one since "Short SB.1" ??? correction: Short SB.4 Sherpa.
Strikes me as a good alternative to split ailerons or drag rudders, deflect the wingtip one way and the aileron the other and you have made an effective rudder input to the controls. Maybe better than the B-2's drag rudders for a fighter?
Haven't seen rotating wingtips on an aircraft since one of the fictional fighters you fly in the PS2 game "Dropship".
They did it for a good reason, we just don’t know that reason yet.
Nasa know :D They published the papers.
The wing tips replace the rudder. They work at high angles, so not for lift or roll. They just really on drag to induce yaw, like a rudder.
Wow, the things that are possible when youre more concerned about building cutting edge aircraft, than hiring diverse black lesbians
So true. Even back in the 1990s when we were, I’m talking about the company I work for as an engineer, we were a subcontractor to the international space station, NASA forced the subcontractor to promote all the women and demote all the experienced men that actually did the work. No kidding. There were not any black lesbians because there were no black lesbian engineers at that time, and probably still today true
Half their things are stolen tech from America my guy
The strange thing is that their engine tech doesn't seem to have moved forward at the same rate. They may have moved forward, but they don't seem to be showing it. The rear end of their planes still look to have Russian knock off engines, and there seems to be no attempt at designing stealth into the nozzles.
This could mean that they will be vulnerable to attack when egressing an area.
Then again, that may not be looked at as important when the idea is to be heading towards a target and spamming missiles at it. It implies that the target and it's defenses will be too busy dodging or firing at missiles to do much about the aircraft firing the.
Not sure if this can add anything to the discussion, but I remember that the concept of AMT (All moving Tips) was investigated in the FATE and ICE studies made by the Americans. I wonder why these solutions don't seem to be adopted in later US designs and are, instead, being investigated by the Chinese
Oh wow ! They do indeed look like these !!
I guess same reason why russia was first developing combat lasers and was first to abandon them (and then was used to justify decades long development of American combat lasers based on few fairy powerful experimental laser jamming systems that they could acquire data for) - americans could not make them useful with tech available at the time, so idea was abandoned entirely. But chinese never tired that, but evidently are determined to find out how useful those actually are, while trying to get ahead of competition (old nasa kind of stuff, if you ain't making overkill, you ain't making good enough plane).
@@deauthorsadeptus6920 Great analogy! We will see how overkill the Chinese are going ahahah
Wow, they look quite similar and they're from 30 years ago. The Chinese truly are decades ahead of the West...
And the Soviets were the first to invent stealth designs and coatings. What's even your point? Where is your plane?
It could be used for low speed/high angles of attack control. Remember that some fighters, like the F-15, don't use the ailerons on supersonic flight, relying entirety on divergent move of the stabilators for roll control. This is to avoid twisting the wingtips at very high speeds.
American designers are gonna copy parts of both thense new Chinese jets, bet on it! And the hylarious thing is that many "fans" are gonna claim genius for those copied designs.
Nice effort man, keep it up!
I must admit that I also don't understand the wingtip actuation. The yaw-roll coupling must be very significant. However, that might mean that the Chinese engineers expect significant control authority from small deflections in the wingtip, which would compromise the stealth of the aircraft less. Just speculation from another aero engineer
i've experimented with that type design on Kerbal Space Simulator (KSP) ... it most certainly causes 'structural stress' related issues and although the Roll Factor is increased substantially.... at extremely high speeds it becomes incredibly dangerous... dangerous to the point the craft may very well break up with the slightest of roll.
When a swept wing plane yaws to the right it will also roll to the right. But the wing tip rotating would cause both a yaw to the right and a little extra lift to counter the roll. So it may be able to yaw with less coupled roll. So interesting and innovative.
I imagine if only one deploys it will yaw the plane but if both go in the opposite directions that can help the ailerons or spoilers roll the plane.
Split ailerons for yaw can't help roll the plane.
Is the J 36 also equipped with these flexible tips? I saw something moving on the wing tips and next gen design concepts show flexible surfaces as superior controls.
When rolling, wing tip ailerons will be controlled in opposite directions (one pulls the wing up and the other pushes the wing down). This cancels out the induced yaw. To get maximum roll torque, the ailerons were placed as far as possible from the fuselage center of rotation (torque = force times distance from the roll axis).
An interesting possibility of placing the ailerons on wingtips is to link multiple planes together wingtip to wingtip. This will increase range by 20 to 40%. The same reason gliders with 50:1 drop rate have such long wings, and why birds fly in a V shape configuration. Note, a proposal to extend bomber range was made to fly them in groups similar to how birds fly.
If the ailerons are used in lieu of a rudder, then every time the pilot pitches an aileron up for yaw he will also get roll. I believe the designers solved this problem by allowing the pilot to open the aileron up and down at the same time (a split aileron that can open into a V shape for yaw and also rotate the aileron for Roll). The increased wingtip drag will induce Yaw which is critical for landing during a crosswind.
Note how the distance of the wingtip aileron will give maximum yaw torque. An elegant design with better torque than provided by a rudder which is closer to the yaw axis of rotation.
Yeah, it sounds plausible. They could form a skybridge Or a Power rangers super mech.
Perhaps there is a mode where its used as a yaw dampner as well, with an aileron countering the roll while the small deflection dampens yaw. It can also serve as a rudder on the ground as well as an air brake. Is it a worthwhile price to pay for the elimiation of the tail? Seems so.
A few years back I mentioned on this channel that the future belongs to adaptive wings. This is a step towards that. In the future such surfaces will be integrated into the wings curvature, actually flexing it locally. Like a bird reshuffling it’s feathers. Or more precisely: like a pterodactyl reshaping the fleeces in its wings. Or the Wright brothers wing warping system. another step on this route was NASA’s Mission Adaptive wing project demonstrator based on a F111. It however only provided a unidirectional approach as far as flexing goes. I however envision outwardly singular leading and trailing edges shielding internal actuators. The stealth disadvantages will then mostly disappear, offering near perfect radar dispersion. The fact that the individual surfaces on this aircraft are smaller might however already help to lessen the effects caused by conventional tails. Dispersion is a more important / realistic goal then perfect stealth. A few smaller reflections can still make an aircraft less detectable at a distance then those from a single big surface. In other words. Sometimes a bit of lateral thinking can go a long way. 😁
Interesting, using ballast for stability is a novel idea.
The features on the wing tip may be simply to defeat anyone attempting to collect radar signatures.
It seems to be an extremely un-stealthy addition, there must be some overwhelming aerodynamic advantage to justify it. Perhaps it's related to very slow landing and take-offs? Just speculating, but perhaps these wingtip ailerons only operates at very slow speed, but retracts at normal speed (for stealth and low drag), allowing for an alternative control mechanism (flexible aerofoils?) to operate during cruise.
MFs hating because it's not made in the great Mureica for 10x the price
(Why do we have the vertical tail fin?) Drag on the wingtip during banking creates adverse yaw. The rotating wing tips, as opposed to wingtip spoilers like the other Chinese aircraft, #imo are to reduce drag at the wingtips at various angles of attack and role, for stability. The Prandtl Wing.
What if the drag is used to increase yaw authority, biasing it towards whatever direction of pitch is more appropriate for the input commands? That would explain why one was partially deflected and the other was still aligned with wing. I suspect it wouldnt be used in high roll/low yaw inputs, due to its drag penalty and stealth disadvantage.
First guess: they had discovered a flutter problem too late, then put a band aid on it, and combined it with a feature, and are now puzzling everyone with that new feature.
The Boeing B70 Valkyrie Mach 3 bomber had flaps on the ends of the wings. When these flaps were aimed down they created a vortex that resulted in added lift. They might also be used for flow control to increase maneuverability.
As an aviation fan i've always loved Chinese aircraft.. I think it's great they're now leading the way with these new designs..
J20 was already pretty dope
@@FemboyLegendGDit looks good but, too big.
@@Raiderr67 Tbh size might only be an issue for shrapnel, pretty specific.
Lol🤣
Honestly they only did licence building and modifying of russian aircrafts in the past... I love russian aircraft design! Only slowly they did their own Designs like J-10, J-17... but know they are keeping up very fast and going to overtake!!!😱😎👍 There's a lot going on now in china! Different J-20 versions, J-31/J-35, J-36, J-50, H-20... Wow! They don't loose time! They do! Looks like US is a bit behind now...🤔😉
@@einautofan6685 For a long time they made their own version of russian equipment as they didnt have a solid foundation for their own equipment until the last 10-15 years
I know very little about aeronautics but I do know that wingtip vortices are a very significant factor. Could these control surfaces at the wingtip have some role in shaping and directing the vortices, potentially increasing or decreasing drag induced by the vortices or changing the balance between the drag induced by each wingtip vortex?
The obvious assumption to make is that these control surfaces are related to roll, like ailerons, but what if part of their purpose is to act as rudders? Instead of a "flaperon", a "rudderon" - a single control surface for both roll and yaw control that works by manipulating the wingtip vortices?
Heh... I think this might have the answer for us:
"Lambda wing, as known as Λ wing, is named for its trailing edge containing forward swept and backward swept parts while its shape is similar to the Greek letter Λ."
This new aircraft definitely fits that description.
"Compared with delta wing and trapezoid wing, lambda wings have extremely low RCS due to the trailing edge configuration, larger aspect ratio and a higher cruise lift drag ratio"
Seems to be a very stealthy configuration.
"Gillard et al. introduced all moving wing tip (AMT) as a yaw control device and showed its potential excellent efficiency when used for yaw control on tailless fighter without side effect by rotation. These investigations demonstrate that adding auxiliary control surface for moment control based on tailless lambda wing configuration is of research significance."
www.sciencedirect.com/science/article/abs/pii/S1270963823004054
Those control surfaces at the wing tips will of course influence the turbulent air flow in those places. Having adequate simulations for this kind of things requires a substantial amount of supercomputing power at hand. There are no possibilities for "intuitive" interpretations of the behaviour there.
It's a vortex control, it's allowed fast and hight-efficient control, control with hoght rate "effect
It will be interesting to see if this feature makes it onto the production version. It wouldn't be the first time that an interesting aerodynamic feature eventually gets removed: for example the glove-vanes on the F-14 or the Krueger-flaps on the Tornado IDS.
The aircraft has no rudder. A rudder normally gives yaw control. Could this wingtip device be used actually for yaw control in place of rudders
The picture is taken from below. Could the structure have an up component as well as a down component that's not visible because of the angle of the picture? Like an airbrake it would allow yaw control in place of rudders.
Are we positive that it's rotating in that axis? It looks like it could be rotating downward to act more like a vertical stabilizer to increase yaw stability.
A most informative addendum, I look forward to what else comes from this project as it develops.
I wonder what these things at the wing tips do at supersonic speeds or at high angles of attack. Any comments on that?
The simplicity vs size of those landing gear maks me think this is a drone.
The j36 is the manned drone commander, and the j50 is its loyal wingman.
People are trying to compare this to a B-2
Not even close. B-2s are huge!
May be a " patch " to remedy a roll and or yaw control issue occurring at landing speeds . Very important for a carrier aircraft .
It seems a move that makes the aircraft look more like a bird than a fish; however, I feel at high apeeds the aircraft is acting more like a fish in water than a bird in air; hence, needing the tail/fin to yaw more than the wingtips.
Very interesting and unusual, can't wait to find out more about this! Really smart thought about the twin wheel nose gear configuration making a carrier use case most likely, I wouldn't have spotted that.
I think we reached the peak of aircraft engineering as it is and the chinese and russians have started to innovate e.g su57 j50*
I think there meant to assist with rolling the aircraft.
I think these wont move when the jet flies straight approaching an enemy where the stealth is needed. Once that distance is closed, stealth will matter less than manuverability so this does seem to make sense
I have no idea but if I understand your description it uses actuators. Is it possible to have these things for the purpose of monitoring movement or loads on that part of the wing, but NO actuators just data collection ? Take care.
This concept was from a university student that won flying competition in china. Proven with drone many yrs back faster n more agile than convention jet.
Do you have a link?
Sliding in for the usual great discussion and personal intelligent analysis. Bravo, sir. ⚡👏🏻🥃
Wing warping?
I did see another picture with another trapezoid“feather”alongside,eagle wingtip style
china has already started research on 7g birds. it uses the tick tock 'tack' approach. by the time 6g goes into production, 7g is ready and 8g will begin research stage
Ah, this is the tailless feature of a bird. Nasa had a break through in a mars project where a student first created a rc plane with twisted wing where the wingtips has negativ lift. This allows for a natural coordinated turn without rudders. The side effect is that you give up total lift for less drag. But as it's here mechanical and not wing feathers they can probably do both. Birds also don't have the wing tip vortices at the wing tip. They generate them somewhere around 20% inwards from the wing tip. So when a bird turns the outward wing is actually accelerated compared to the inward wing. Causing a low drag coordinated turn.
probably it is only used at low speeds only for landing and take off to provide more stability at low speeds.
I think its a smaller control surface in order to help with stealth while maneuvering.
It would have to hurt the radar signature too, right?
Maybe it hurts less than conventional rudder fins...
well, not if you can control when they are use. for example. separate control where it is use only engage in a dog fight. inactive during normal flight.
Isn't this how birds fly? Like eagles? They slightly change the feathers at the tips of the wings.
So its a test tech demo acft and is still has a way to go before being cleared for production let alone operational use.
Maybe the wing tip is intended to cause flex (I.e., warp) across the entire wing for flight control purposes. Some type of flexible wing technology demonstrator.
I don't think differential surfaces at the wingtips is anything difficult to do in a flight control. They need something to replace the horizontal tail and that will work. The old F-16 analog flight control had a "mixer" that would mix lateral and longitudinal commands, giving one or the other priority, before sending position commands to the surfaces.
dude capabilities aside we’re getting some cool ass tailless designs🙏
I've seen some renders with "ruddervators" that are normally (level flight) in line with the wing but when needed they'll move. Maybe there will be v2, maybe not, we'll see
There is no evidence of those
Looks like a mixture of a Duck-Goose and an Albatross.
It's very commendable that the Chinese are getting their feet wet in designing their own aircraft.
Feet🤤
Must be there for the lack of fins (tail rudders).
They will drop this feature in subsequent iterations while staying rent free in western designer heads for a very long time.
Really interesting detail. Thanks for pointing it out.