Shenyang next gen combat aircraft thread

dodgson

Just Hatched
Registered Member
Guys I found this videos about the j-50 really interesting and discussion worty

Why Shenfei's sixth-generation J-50 represents the highest integrated level of world aviation (1) Variable geometry edge strip


Why Shenfei's Sixth-Generation Aircraft Represents the World's Highest Level of Aviation Integration (2) All-Moving Wingtip


Why Shenfei's sixth-generation J-50 represents the highest integrated level of world aviation (3) Lambda wing

This is my take on the videos ( disclaimer: i don't speak Chinese, and I'm learning English, my understanding of aerodynamic is superficial, so I might miss understand some things)

1. Variable geometry Lerx with memory shape alloys

It explain the Evolution of LEX from the F-5 tiger (2.2% of Total Wing Area), f-16 LERX (7% TWA), F-18 LEX (10-15% of TWA) , su-27 (12% TWA) F-22 LEX (with a focus on stealth -4% TWA) the su-57 LEVCONS (focus on Supermanivaribilty)

Then the Chinese route j-7 => j-9=> jf-17 => j-20 => j-35 and now the j-50.. with j-11,15 and 16 LEX also mentioned...

I'm skeptical about this conformal differential shaping thing, even if possible would be a few cm in any shape at most. So not comparable with su-57 levcon o j-20 FMC areodinamic authorithy.

Even so Would be amazing if possible

2. Under-rib DSI with conformal differential geometry (memory shape alloys again)

Here i am more optimistic, the DSI itself is a compromise for stealth and weight reduction, the tradeoff is performance in the whole speed envelope. DSI curvature is optimized for a specific speed, hence less optimal for other speeds. So being able to have some variation in the bump shape would widen the optimal part of the flight envelope. While maintaining stealth in comparison with a moving ramp.

3. All moving wingtips

Here i like the idea AWT being controlable in 2 axis (like rotating and folding) there is a analogy with the XB-70 Valkyrie folding Wing Tips.

Also there is a comparison between SAC a CAC approach to 6th gen defining characteristic (tailless), with CAC compromise wining in stealth and drag reduction vs SAC winning in agility. Both valid solution for the objective of their respective design.

4. Tailess Lambda wings

While great for all aspect stealth, it present challenges for yaw controll, roll stability and stall at high AoA. Where SAC could not rely in traditional control surfaces and had to use innovative solutions (AMW, TVC, Dynamic LEX)

How the lambda wing shape has aerodynamic and stealth gains (see b-21,f-117 xb-70, GJ-11, tempest) but weight and structural challenges . That had to be addressed with aeroelastic tailoring (alas dreamliner), 3D printer parts with a gradient titanium alloy composites going from 30% to 70% TI.

So the j-36 is a spiritual descendant of the Saab draken, the f-117 and the b-21. mixing the agility of the formers with the stealth of the latters. Guessing the tradeoff would be, cost, and complexity

What do you guys think abwesome!

FYI this content creator is regarded by the Chinese military enthusiast community as generally garbage and not credible in the slightest. If you assume everything he said is made up or incorrect, and when you do find things that make sense take those as coincidences, you wouldn’t be far off.
Fant
Guys I found this videos about the j-50 really interesting and discussion worty

Why Shenfei's sixth-generation J-50 represents the highest integrated level of world aviation (1) Variable geometry edge strip


Why Shenfei's Sixth-Generation Aircraft Represents the World's Highest Level of Aviation Integration (2) All-Moving Wingtip


Why Shenfei's sixth-generation J-50 represents the highest integrated level of world aviation (3) Lambda wing

This is my take on the videos ( disclaimer: i don't speak Chinese, and I'm learning English, my understanding of aerodynamic is superficial, so I might miss understand some things)

1. Variable geometry Lerx with memory shape alloys

It explain the Evolution of LEX from the F-5 tiger (2.2% of Total Wing Area), f-16 LERX (7% TWA), F-18 LEX (10-15% of TWA) , su-27 (12% TWA) F-22 LEX (with a focus on stealth -4% TWA) the su-57 LEVCONS (focus on Supermanivaribilty)

Then the Chinese route j-7 => j-9=> jf-17 => j-20 => j-35 and now the j-50.. with j-11,15 and 16 LEX also mentioned...

I'm skeptical about this conformal differential shaping thing, even if possible would be a few cm in any shape at most. So not comparable with su-57 levcon o j-20 FMC areodinamic authorithy.

Even so Would be amazing if possible

2. Under-rib DSI with conformal differential geometry (memory shape alloys again)

Here i am more optimistic, the DSI itself is a compromise for stealth and weight reduction, the tradeoff is performance in the whole speed envelope. DSI curvature is optimized for a specific speed, hence less optimal for other speeds. So being able to have some variation in the bump shape would widen the optimal part of the flight envelope. While maintaining stealth in comparison with a moving ramp.

3. All moving wingtips

Here i like the idea AWT being controlable in 2 axis (like rotating and folding) there is a analogy with the XB-70 Valkyrie folding Wing Tips.

Also there is a comparison between SAC a CAC approach to 6th gen defining characteristic (tailless), with CAC compromise wining in stealth and drag reduction vs SAC winning in agility. Both valid solution for the objective of their respective design.

4. Tailess Lambda wings

While great for all aspect stealth, it present challenges for yaw controll, roll stability and stall at high AoA. Where SAC could not rely in traditional control surfaces and had to use innovative solutions (AMW, TVC, Dynamic LEX)

How the lambda wing shape has aerodynamic and stealth gains (see b-21,f-117 xb-70, GJ-11, tempest) but weight and structural challenges . That had to be addressed with aeroelastic tailoring (alas dreamliner), 3D printer parts with a gradient titanium alloy composites going from 30% to 70% TI.

So the j-36 is a spiritual descendant of the Saab draken, the f-117 and the b-21. mixing the agility of the formers with the stealth of the latters. Guessing the tradeoff would be, cost, and complexity

What do you guys think about it?
Fascinating videos! Some amazing engineering goes into these machines. I was curious why such radically different designs were adopted for the two 6th gen jets, and it seems agility was a key objective with the J-50 design.
 

Chaos314159

Just Hatched
Registered Member
Guys I found this videos about the j-50 really interesting and discussion worty

Why Shenfei's sixth-generation J-50 represents the highest integrated level of world aviation (1) Variable geometry edge strip


Why Shenfei's Sixth-Generation Aircraft Represents the World's Highest Level of Aviation Integration (2) All-Moving Wingtip


Why Shenfei's sixth-generation J-50 represents the highest integrated level of world aviation (3) Lambda wing

This is my take on the videos ( disclaimer: i don't speak Chinese, and I'm learning English, my understanding of aerodynamic is superficial, so I might miss understand some things)

1. Variable geometry Lerx with memory shape alloys

It explain the Evolution of LEX from the F-5 tiger (2.2% of Total Wing Area), f-16 LERX (7% TWA), F-18 LEX (10-15% of TWA) , su-27 (12% TWA) F-22 LEX (with a focus on stealth -4% TWA) the su-57 LEVCONS (focus on Supermanivaribilty)

Then the Chinese route j-7 => j-9=> jf-17 => j-20 => j-35 and now the j-50.. with j-11,15 and 16 LEX also mentioned...

I'm skeptical about this conformal differential shaping thing, even if possible would be a few cm in any shape at most. So not comparable with su-57 levcon o j-20 FMC areodinamic authorithy.

Even so Would be amazing if possible

2. Under-rib DSI with conformal differential geometry (memory shape alloys again)

Here i am more optimistic, the DSI itself is a compromise for stealth and weight reduction, the tradeoff is performance in the whole speed envelope. DSI curvature is optimized for a specific speed, hence less optimal for other speeds. So being able to have some variation in the bump shape would widen the optimal part of the flight envelope. While maintaining stealth in comparison with a moving ramp.

3. All moving wingtips

Here i like the idea AWT being controlable in 2 axis (like rotating and folding) there is a analogy with the XB-70 Valkyrie folding Wing Tips.

Also there is a comparison between SAC a CAC approach to 6th gen defining characteristic (tailless), with CAC compromise wining in stealth and drag reduction vs SAC winning in agility. Both valid solution for the objective of their respective design.

4. Tailess Lambda wings

While great for all aspect stealth, it present challenges for yaw controll, roll stability and stall at high AoA. Where SAC could not rely in traditional control surfaces and had to use innovative solutions (AMW, TVC, Dynamic LEX)

How the lambda wing shape has aerodynamic and stealth gains (see b-21,f-117 xb-70, GJ-11, tempest) but weight and structural challenges . That had to be addressed with aeroelastic tailoring (alas dreamliner), 3D printer parts with a gradient titanium alloy composites going from 30% to 70% TI.

So the j-36 is a spiritual descendant of the Saab draken, the f-117 and the b-21. mixing the agility of the formers with the stealth of the latters. Guessing the tradeoff would be, cost, and complexity

What do you guys think about it?
Bro, don't post 落总师's s**t here, please.
 

by78

General
Guys I found this videos about the j-50 really interesting and discussion worty

Why Shenfei's sixth-generation J-50 represents the highest integrated level of world aviation (1) Variable geometry edge strip


Why Shenfei's Sixth-Generation Aircraft Represents the World's Highest Level of Aviation Integration (2) All-Moving Wingtip


Why Shenfei's sixth-generation J-50 represents the highest integrated level of world aviation (3) Lambda wing

This is my take on the videos ( disclaimer: i don't speak Chinese, and I'm learning English, my understanding of aerodynamic is superficial, so I might miss understand some things)

1. Variable geometry Lerx with memory shape alloys

It explain the Evolution of LEX from the F-5 tiger (2.2% of Total Wing Area), f-16 LERX (7% TWA), F-18 LEX (10-15% of TWA) , su-27 (12% TWA) F-22 LEX (with a focus on stealth -4% TWA) the su-57 LEVCONS (focus on Supermanivaribilty)

Then the Chinese route j-7 => j-9=> jf-17 => j-20 => j-35 and now the j-50.. with j-11,15 and 16 LEX also mentioned...

I'm skeptical about this conformal differential shaping thing, even if possible would be a few cm in any shape at most. So not comparable with su-57 levcon o j-20 FMC areodinamic authorithy.

Even so Would be amazing if possible

2. Under-rib DSI with conformal differential geometry (memory shape alloys again)

Here i am more optimistic, the DSI itself is a compromise for stealth and weight reduction, the tradeoff is performance in the whole speed envelope. DSI curvature is optimized for a specific speed, hence less optimal for other speeds. So being able to have some variation in the bump shape would widen the optimal part of the flight envelope. While maintaining stealth in comparison with a moving ramp.

3. All moving wingtips

Here i like the idea AWT being controlable in 2 axis (like rotating and folding) there is a analogy with the XB-70 Valkyrie folding Wing Tips.

Also there is a comparison between SAC a CAC approach to 6th gen defining characteristic (tailless), with CAC compromise wining in stealth and drag reduction vs SAC winning in agility. Both valid solution for the objective of their respective design.

4. Tailess Lambda wings

While great for all aspect stealth, it present challenges for yaw controll, roll stability and stall at high AoA. Where SAC could not rely in traditional control surfaces and had to use innovative solutions (AMW, TVC, Dynamic LEX)

How the lambda wing shape has aerodynamic and stealth gains (see b-21,f-117 xb-70, GJ-11, tempest) but weight and structural challenges . That had to be addressed with aeroelastic tailoring (alas dreamliner), 3D printer parts with a gradient titanium alloy composites going from 30% to 70% TI.

So the j-36 is a spiritual descendant of the Saab draken, the f-117 and the b-21. mixing the agility of the formers with the stealth of the latters. Guessing the tradeoff would be, cost, and complexity

What do you guys think about it?

Indians are delusional, but koreans are... something else...
the fact that this guy has 277k subs...

Stop posting dumb social media content on this forum. There are many places online for stupid fanboy content, but this forum isn't one of them. If the level of your contribution doesn't rise above that of a fanboy, then most of us here would be very happy if you stopped posting altogther.
 

Alvaritus

New Member
Registered Member
That's probably too far in the future for us to tell. We do not even know if there will be a competition between J-36 and J-50 and the fate of the loser.
One can reasonably conjecture that the j-36 and j-50 are not in direct competition, because the different weight class and characteristics o f each, that points to different requirements between both aircraft
 
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SanWenYu

Captain
Registered Member
One can reasonably conjecture that the j-36 and j-50 are not in direct competition, because the different weight class and characteristics o f each, that points to different requirements between both aircraft
I don't think PLAAF can afford two different classes of 6th gen aircraft's. And so far we have not seen J-50 showing features for carrier uses. We will have to wait and see.
 
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