Chengdu J-20 5th Generation Aircraft News & Discussions

[gambit]

@Asok .. please these badly made copy&paste imges are off !

They simply look like a random found collection of "two aircrafts are mating" ... but their size comparison is based on what ?? The size of the weapons bay, the size of the canopy, pure guesswork.

IMO it is well known that the F-22 is smaller, but in this way these are not very helpful esp. since they contradict: in one the span is the same, in another the canopy, in the third the bays ...

And completely inappropriate since we do not know if the jets' images are in correct proportion to each other.

 

[Asoka]

@Asok .. please these badly made copy&paste imges are off !

They simply look like a random found collection of "two aircrafts are mating" ... but their size comparison is based on what ?? The size of the weapons bay, the size of the canopy, pure guesswork.

IMO it is well known that the F-22 is smaller, but in this way these are not very helpful esp. since they contradict: in one the span is the same, in another the canopy, in the third the bays ...

I resize the pictures until their wingspans are about the same. F-22's wingspan is known to be 44 feet, and J-20's 42-44 feet. Of course, they are approximate comparison. Just want to show how much J-20 is longer than F-22.

And completely inappropriate since we do not know if the jets' images are in correct proportion to each other.

We know their wingspans are around 42-44ft, If I resize their pictures to have the same wingspan and keep the proportions, then we can have a fair comparison. They are appropriate and live with that. Don't be a sour grape.

A J-20A spotted over Hailar in northeastern Inner Mongolia, China. ...

View attachment 363841

There are no J-20A or J-20B, stop use those alphabets, please.

 

[grey boy 2]

Ultra close up HD picture

 

[Asoka]

Ultra close up HD picture

Since the body of J-20 is so much longer than F-22's, I find the estimate that J-20's internal fuel capacity of 12 tons, vs F-22's 9 tons, completely creditable. That gives J-20 33% more internal fuel capacity than F-22.

The length of F-22 is stated as 62ft, but several feet of the tail stick out pass the nozzles. Measurement based on nose to exhaust nozzle is a more realistic measurement of the actual body length.

The first part of the leading edge extension seems movable. What do you think, folks?

 

[Asoka]

Here is a comparison of Su-30MKK and J-20. J-20' wingspan is estimated to be 44ft. Su-30MKK's wingspan is listed as 48ft, and length is 72 ft. But note several feet of the tail stick past the nozzle. So again a nose to nozzle comparison is a more realistic comparison of internal volume. Here it shows the wingspan of Su-3MKK is longer than J-20, but from nose to nozzle, its slightly shorter. I kept the proportion when I resized the Su-30MKK.

If I move the nose of Su-30MKK to align with J-20, we can see the whole length, from nose to tail, is about the same. So the whole length of J-20 is slightly less than 72ft long. In comparison, the length of F-111 is 73ft and spread wingspan is 63ft.

 

[j20blackdragon]

We know the size of the J-20 in relationship with the Flanker.

We also know the J-20 has a significantly larger airframe than the F-22, especially if measured from nose to nozzles.

Another way to measure the J-20.

 

[Asoka]

This is a much more accurate comparison. Thanks! Since the wingspan of the J-20 and F-22 is about the same, I simply line them up, without resize the pictures.

F-22 and J-20 are about the same length and size, without the canard section of J-20's body.

The F-35 is a single engine, medium size, plane, but it were forced to carry 9 ton of fuel (same as the F-22) internally to meet the stealth and combat range requirement of ~1000km. This makes the F-35, which has the most powerful production engine in the world (>190kn thrust), look incredibly fat and overweight. It completely squeezed out every bit of internal volume and any chance of further upgrade, because it has no more spare space.

It simply shows having a stealth plane that is not large as F-22 and J-20 doesn't make much sense. Even the F-22 doesn't have a lot of internal fuel for the vast expanse of the Pacific Ocean.

China's designers have made a wise decision to make J-20 even bigger than F-22. They have understood J-20 will be fighting over the vast expanse of Pacific Ocean in the future. And that means huge size and huge range, perhaps, banking on the knowledge, that they will have a powerful engine in the future.

We know the size of the J-20 in relationship with the Flanker.

We also know the J-20 has a significantly larger airframe than the F-22, especially if measured from nose to nozzles.

Another way to measure the J-20.
View attachment 363986

 

[Deino]

...
There are no J-20A or J-20B, stop use those alphabets, please.

As long as You pretend to state that the J-20 already uses a WS-15 !!!

Jokes aside ... WHY !?? As far as I know, the first iteration of an aircraft uses no additional letter ... so was the J-7, J-10 and surely also the J-20. But if You look how the first serial or operational birds were designated - aka J-10A - it is IMO not that far off to assume that the operational J-20s are in fact J-20s since the step from the 200x demonstrators to the 201x prototypes alone would justify a new letter.

Deino

 

[Asoka]

As long as You pretend to state that the J-20 already uses a WS-15 !!!

Jokes aside ... WHY !?? As far as I know, the first iteration of an aircraft uses no additional letter ... so was the J-7, J-10 and surely also the J-20. But if You look how the first serial or operational birds were designated - aka J-10A - it is IMO not that far off to assume that the operational J-20s are in fact J-20s since the step from the 200x demonstrators to the 201x prototypes alone would justify a new letter.

Deino

There is actually no evidence that J-20 is NOT using WS-15 already. There are no official/semi-official announcements. An official has stated its using Chinese made engine. That's about it. The idea of J-20 is using WS-10X or AL-31Fn came from the fanboy. They got it from comparing exhaust nozzles. So it is pure speculation.

To be honest, I don't have firm and absolutely convincing evidence, either. Just my own speculation based on reasonings provided by other Chinese fanboys.

The Chinese government has played a masterful game of deception to conceal the identity of the engine. As to why? We can only speculate. To me, the truth will be shocking to a lot people.

 

[Ultima Thule]

As long as You pretend to state that the J-20 already uses a WS-15 !!!

Jokes aside ... WHY !?? As far as I know, the first iteration of an aircraft uses no additional letter ... so was the J-7, J-10 and surely also the J-20. But if You look how the first serial or operational birds were designated - aka J-10A - it is IMO not that far off to assume that the operational J-20s are in fact J-20s since the step from the 200x demonstrators to the 201x prototypes alone would justify a new letter.

Deino

No sir he right their is no J-20A or J-20B

 

[TruthHurtz]

We all know whether or not the J-20 uses the WS-15 is a matter of life or death for some posters in this thread.

 

[Asoka]

We all know whether or not the J-20 uses the WS-15 is a matter of life or death for the posters in this thread.

right, Truth hurtz!

 

[Asoka]

At the risk of the Mod saying enough of the superimposed pictures size comparison, here is the three generations of China's fighters (J-20, J-10, and J-7) length compared side by side.

 

[Deino]

At the risk of the Mod saying enough of the superimposed pictures size comparison, here is the three generations of China's fighters length compared side by side.

No, this is at least a decent comparison, since You have a reference, all were taken from the same position. But to compare a fighter not in the exact same position without really any reference or the known exact dimensions will ever fail to be an exact comparison.

 

[TruthHurtz]

At the risk of the Mod saying enough of the superimposed pictures size comparison, here is the three generations of China's fighters (J-20, J-10, and J-7) length compared side by side.

View attachment 364008

In such a short space of time as well, very impressive progress.