Chengdu J-20 5th Generation Aircraft News & Discussions

[Reviewer21]

Based on the fact. PLA has the largest military budget after USA and China military cost it much lower compare to Other countries.

I didn't get the colored part.

 

[Aegis DDG]

So is China using WS-10G on J-20 now or is it using AL-31?

Most probably WS-15 or W-10G engines. It's unlikely an engine like AL-31 will be sustainable for an stealth fighter like J-20.

 

[Akasa]

I like the picture of J-20 above this post. It's a pretty jet

And that pertains to the previous argument in what way?

 

[Superboy]

Woohoo, nice color.

 

[Superboy]

so a 4th gen engine for a 5th gen plane??how effective deterrence can it be to the enemies??

4th generation by Chinese timeline. 5th generation by Russian / western timeline.

 

[walle990]

World's one of the richest missile force in the world, on what basis?

Also the US and Russia missile forces are restricted as per the new START treaty.

I didn't get the colored part.

purchasing power and market rates, you don't pay a chinese engineer a 7 figure salary

I didn't get the colored part.

It costs less to operate in China, the land, power, staff.
It also matter the way the chinese do things, did you know the US government doesn't actually own some of its sub launched missiles such as the trident? They lease the missiles from companies like Lockheed Martin but own the nuclear material.

 

[shuttler]

Looks cool! but it looks like exact replica of F-22, Why So?

that is the comment from novices

purchasing power and market rates, you don't pay a Chinese engineer a 7 figure salary.

I dont think you know the development of China much:

企业如何爱员工：格力给员工建房 华为员工是老板（全文）_网易财经

 

[Martian2]

Obvious significant differences between Chengdu J-20 and Lockheed F-22

The Chengdu J-20 is nothing like the F-22. If you look carefully, it should be obvious.

1. The Chengdu J-20 is a canard-delta wing fighter. The J-20 has no rear horizontal stabilizers, which is present on the F-22 quad-tail design.

The F-22 has large trapezoidal wings to maximize maneuverability. In contrast, the J-20 is optimized for transonic flight. To compensate, the J-20 has ventral stabilizers and adjustable vertical stabilizers to increase maneuverability.

2. Your eyes should be able to see the DSI (ie. diverterless supersonic inlet) on the Chengdu J-20, which is absent on the F-22.

3. The transparent RAM on the F-22 is much thicker and the gold color is more noticeable. This means the J-20 and F-22 are most likely using different chemical compounds.

4. The EOTS (ie. electro-optical targeting system) on the J-20 is not present on the F-22.

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Differences between Chengdu J-20 and Lockheed F-22 design philosophies

The Chengdu J-20 is a "genuine Very Low Observable design" except for round engine nozzles, which can be fixed.

The Chengdu J-20 and Lockheed F-22 are optimized for different functions (see citation below).

The Chengdu J-20 is not a larger F-22 with canards. The J-20 has no rear horizontal stabilizers, which is present on the F-22 quad-tail design.

The combination of the canards, delta wing, and rhomboid vertical stabilizers indicate a design strategy to optimize for supersonic flight. Basically, the J-20's main purpose is to stealthily fly long distances in supercruise.

The F-22 has a diamond wing with a large surface area and large trapezoidal vertical stabilizers to provide stability. Additionally, the F-22 has thrust-vectored flat nozzles. It looks like the designers of the F-22 were optimizing for maneuverability in close combat.

The design philosophies behind the J-20 and F-22 are completely different (see reference below).

Also, you will note the J-20 has active vertical stabilizers and the F-22 has static vertical stabilizers. My guess is the J-20 has active vertical stabilizers to increase its maneuverability.

The Chengdu J-20 designers did something very clever. They built canard, delta-wing, and rhomboid vertical stabilizers to optimize for supercruise (which enlarges the combat radius during supersonic combat). However, they designed an active vertical stabilizer to work in concert with the canards and ventral stabilizers to increase maneuverability. Overall, an ingenious J-20 design that maximized supercruise range and combined it with very good maneuverability.

Reference: Aspects of Wing Design for Transonic and Supersonic Combat

Citation:

The Strategic Impact of China's J-XX [J-20] Stealth Fighter

"Claims that the Chengdu design is a “Sino-F-22A” make little sense, if the latter were true the aircraft would be considerably smaller. Unlike the FB-22 proposals, the J-XX [J-20] is clearly intended for air combat and using a canard-delta configuration will provide both efficient supersonic cruise, and good supersonic and transonic manoeuvre performance if fitted with engines of sufficient thrust rating[vii]."

 

[Brainsucker]

Well, even if J-20 use AL-31FN, it still powerful enough when it uses in battle. Just put a lot of AShM or Air to Land missile in it, then fly it with J-10, J-7, J-11 or drones. The enemies will detect the escorts, but J-20 with it's stealth capability can slip pass the enemy radar (thanks to her escort) and deliver the missiles to the target.

Stealth Fighter doesn't have to have Super Engine like F-22. What important is that it helps the mission to destroy the enemy. If a single J-20 with her escorts dan sink several Arleigh Burke because of her stealth feature, then this aircraft is powerful and frightening.

 

[longlong]

Obvious significant differences between Chengdu J-20 and Lockheed F-22

The Chengdu J-20 is nothing like the F-22. If you look carefully, it should be obvious.

1. The Chengdu J-20 is a canard-delta wing fighter. The J-20 has no rear horizontal stabilizers, which is present on the F-22 quad-tail design.

The F-22 has large trapezoidal wings to maximize maneuverability. In contrast, the J-20 is optimized for transonic flight. To compensate, the J-20 has ventral stabilizers and adjustable vertical stabilizers to increase maneuverability.

2. Your eyes should be able to see the DSI (ie. diverterless supersonic inlet) on the Chengdu J-20, which is absent on the F-22.

3. The transparent RAM on the F-22 is much thicker and the gold color is more noticeable. This means the J-20 and F-22 are most likely using different chemical compounds.

4. The EOTS (ie. electro-optical targeting system) on the J-20 is not present on the F-22.

----------

Differences between Chengdu J-20 and Lockheed F-22 design philosophies

The Chengdu J-20 is a "genuine Very Low Observable design" except for round engine nozzles, which can be fixed.

The Chengdu J-20 and Lockheed F-22 are optimized for different functions (see citation below).

The Chengdu J-20 is not a larger F-22 with canards. The J-20 has no rear horizontal stabilizers, which is present on the F-22 quad-tail design.

The combination of the canards, delta wing, and rhomboid vertical stabilizers indicate a design strategy to optimize for supersonic flight. Basically, the J-20's main purpose is to stealthily fly long distances in supercruise.

The F-22 has a diamond wing with a large surface area and large trapezoidal vertical stabilizers to provide stability. Additionally, the F-22 has thrust-vectored flat nozzles. It looks like the designers of the F-22 were optimizing for maneuverability in close combat.

The design philosophies behind the J-20 and F-22 are completely different (see reference below).

Also, you will note the J-20 has active vertical stabilizers and the F-22 has static vertical stabilizers. My guess is the J-20 has active vertical stabilizers to increase its maneuverability.

The Chengdu J-20 designers did something very clever. They built canard, delta-wing, and rhomboid vertical stabilizers to optimize for supercruise (which enlarges the combat radius during supersonic combat). However, they designed an active vertical stabilizer to work in concert with the canards and ventral stabilizers to increase maneuverability. Overall, an ingenious J-20 design that maximized supercruise range and combined it with very good maneuverability.

Reference: Aspects of Wing Design for Transonic and Supersonic Combat

Citation:

The Strategic Impact of China's J-XX [J-20] Stealth Fighter

"Claims that the Chengdu design is a “Sino-F-22A” make little sense, if the latter were true the aircraft would be considerably smaller. Unlike the FB-22 proposals, the J-XX [J-20] is clearly intended for air combat and using a canard-delta configuration will provide both efficient supersonic cruise, and good supersonic and transonic manoeuvre performance if fitted with engines of sufficient thrust rating[vii]."

Project F-22 is failed, it was cancelled after production of 195.

 

[Reviewer21]

purchasing power and market rates, you don't pay a chinese engineer a 7 figure salary

It costs less to operate in China, the land, power, staff.
It also matter the way the chinese do things, did you know the US government doesn't actually own some of its sub launched missiles such as the trident? They lease the missiles from companies like Lockheed Martin but own the nuclear material.

Ohk, So the manufacturing cost is less, hence they can manufacture huge amount of weapons at less cost compared to US or any developed country.

And US lease missiles, why so?

Also the US and Russia missile forces are restricted as per the new START treaty.

What is this START treaty, and what is restricted?

@Genesis so do you mean one of the richest artillery by the amount of weapons?

 

[帅的一匹]

Looks cool! but it looks like exact replica of F-22, Why So?

only in Indian's eyes.

 

[Reviewer21]

only in Indian's eyes.

Where this indian thing come from, i just said what i felt, if i am wrong, then correct me...

 

[neehar]

4th generation by Chinese timeline. 5th generation by Russian / western timeline.

i meant 4th generation by russian time line itself. same class engines are used for su-30mki which in future will be equipped with more advanced AL-41 class engines.

 

[Genesis]

Where this indian thing come from, i just said what i felt, if i am wrong, then correct me...

how are we suppose to correct eyes, you are not arguing specs, or parts, just visual aspect of it. If you said blue looks red, what are we suppose to say to convince you otherwise?

@Genesis so do you mean one of the richest artillery by the amount of weapons?

The second artillery's budget is a blank check more or less, it's not on the official budget. The missile programs are the most important of all branches of the PLA, it is what's keeping the others out of our country. They can spend however they want.

The current array of missiles available is not worse than Americans, in some aspects it is better. Due to necessity of China's strategic goals, some missiles are only needed by China and thus Americans are not even considering it, yet.

China is the second largest economy, our economy still growing as a top 3 more or less, not sure latest, growth nation.

We are not north korea, where they pump their limited cash into programs, we got unlimited, figure of speech, amount of money, talent, (29 percent of all post secondary grads, by 2020, India is second with 12), and industry.

So you tell me if we are one of the richest or not.