J-20 5th Generation Fighter VII

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by78

General
A utility patent that might be of some interest or at least interesting to look at. The illustration is obviously based on a J-20 fuselage, although this by itself doesn't mean the concept or idea necessarily has a connection with J-20 or has to be confined to J-20. Note the movable surfaces have been greatly modified to allow for flexible aerodynamic configurations. The link below contains a full English translation.

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Abstract: The invention proposes a kind of variant invisible plane and its changing method and applications.The aircraft is designed by stealthy requirement, moves canard and two deflectable formula slab tails entirely using lifting body strake wing allosteric type aerodynamic arrangement scheme, including two deployable and collapsibles. Deployable and collapsible canard takes in fuselage when aircraft cruises or high speed is flat winged, to reduce radar cross section, improves stealth. Deflectable formula slab tail is then deflectable to different angle under different flight state, thus as V-arrangement tail, horizontal tail or abdomeinal fin.The transformation of the aircraft aerodynamic arrangement, including canard configuration, anury formula layout and three-surface configuration are realized with this.The switching of three kinds of aerodynamic arrangements can combine the advantage of this three, preferably meet the requirement under each flight profile, mission profile and state of flight to air maneuver and stealth.The variant aircraft can be used as a kind of high lift-drag ratio, high maneuverability, the good someone of new generation of stealth and unmanned air fighting platform, for executing air superiority combat duty.

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Temstar

Brigadier
Registered Member
How would one manage directional stability without v-tail? With TVC engines?

That config certainly has a bit of a 6th gen look about it.
 

localizer

Colonel
Registered Member
A utility patent that might be of some interest. The illustration is obviously based on a J-20 fuselage, except the movable surfaces have been greatly modified to allow for flexible aerodynamic configurations. The link below contains a full English translation.

Please, Log in or Register to view URLs content!


Abstract: The invention proposes a kind of variant invisible plane and its changing method and applications.The aircraft is designed by stealthy requirement, moves canard and two deflectable formula slab tails entirely using lifting body strake wing allosteric type aerodynamic arrangement scheme, including two deployable and collapsibles. Deployable and collapsible canard takes in fuselage when aircraft cruises or high speed is flat winged, to reduce radar cross section, improves stealth. Deflectable formula slab tail is then deflectable to different angle under different flight state, thus as V-arrangement tail, horizontal tail or abdomeinal fin.The transformation of the aircraft aerodynamic arrangement, including canard configuration, anury formula layout and three-surface configuration are realized with this.The switching of three kinds of aerodynamic arrangements can combine the advantage of this three, preferably meet the requirement under each flight profile, mission profile and state of flight to air maneuver and stealth.The variant aircraft can be used as a kind of high lift-drag ratio, high maneuverability, the good someone of new generation of stealth and unmanned air fighting platform, for executing air superiority combat duty.

50534787151_dd779088fd_o.jpg

50534061458_a6219f3ac3_o.jpg

50534939247_c540f62e50_o.jpg

50534787176_59de5aea29_o.jpg

50534787031_8b2ef08e18_o.jpg

Nvm i guess it's like a tomcat vanes sorta

might as well just design a new jet with all those changes
 
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crash8pilot

Junior Member
Registered Member
How would one manage directional stability without v-tail? With TVC engines?

That config certainly has a bit of a 6th gen look about it.
Split rudder like the B-2
main-qimg-f163bd832cf0f63e9e4f501072ddf0f4.webp


Based on the concept sketches the aerofoil seemingly forms an anhedral shape, which enhances directional stability
 

ougoah

Brigadier
Registered Member
How would one manage directional stability without v-tail? With TVC engines?

That config certainly has a bit of a 6th gen look about it.

Split rudder like the B-2
main-qimg-f163bd832cf0f63e9e4f501072ddf0f4.webp


Based on the concept sketches the aerofoil seemingly forms an anhedral shape, which enhances directional stability

Will that be enough for a fighter? TVC being necessary for something like that J-20 is a given. Interesting there are some leaked concept drawings. Who's applying for these patents? If it's a government/AVIC project what's the point of applying for patents?
 

siegecrossbow

General
Staff member
Super Moderator
A utility patent that might be of some interest or at least interesting to look at. The illustration is obviously based on a J-20 fuselage, although this by itself doesn't mean the concept or idea necessarily has a connection with J-20 or has to be confined to J-20. Note the movable surfaces have been greatly modified to allow for flexible aerodynamic configurations. The link below contains a full English translation.

Please, Log in or Register to view URLs content!


Abstract: The invention proposes a kind of variant invisible plane and its changing method and applications.The aircraft is designed by stealthy requirement, moves canard and two deflectable formula slab tails entirely using lifting body strake wing allosteric type aerodynamic arrangement scheme, including two deployable and collapsibles. Deployable and collapsible canard takes in fuselage when aircraft cruises or high speed is flat winged, to reduce radar cross section, improves stealth. Deflectable formula slab tail is then deflectable to different angle under different flight state, thus as V-arrangement tail, horizontal tail or abdomeinal fin.The transformation of the aircraft aerodynamic arrangement, including canard configuration, anury formula layout and three-surface configuration are realized with this.The switching of three kinds of aerodynamic arrangements can combine the advantage of this three, preferably meet the requirement under each flight profile, mission profile and state of flight to air maneuver and stealth.The variant aircraft can be used as a kind of high lift-drag ratio, high maneuverability, the good someone of new generation of stealth and unmanned air fighting platform, for executing air superiority combat duty.

50534787151_dd779088fd_o.jpg

50534939247_c540f62e50_o.jpg

50534787176_59de5aea29_o.jpg

50534787031_8b2ef08e18_o.jpg

50534787071_66dd4ae68c_o.jpg

There might be more to this patent than you think.

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A CAC employee was recently commended for his hard work on a "special type of aircraft wing". Some people speculate that this involves foldable vertical slabs/canards.
 

Temstar

Brigadier
Registered Member
So people on that thread at cjdby are guessing that these variable geometry things are to optimise stealth. When cruising and needing to penetrate heavily monitored airspace you retract the canards and place the tail horizontal for optimum stealth (and there's probably some aerodynamic advantages, ala F-14's swing wings). When in combat and you need agility those things are extended.

Nice, it's got a whole "lock S-foils in attack position" thing going on.
 
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