China Flanker Thread II

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Blitzo

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Re: The mysterious J-19

I doubt the existence of multiple designs floating around. Even for the aeronautics giants in America, even they have to devote full attention to a brand new design. The bureaus in China simply don't have the ability to work on more than one design at once. Chengdu is working on the J-20, if Shenyang is working on something, then it won't be working on another thing. As for up to today, Shengyang and Chengdu are probably the only two bureau that has the ability to finish the brand new design.

Now that is oversimplifying things... XAC has finished the JH-7, Hongdu's finished the JL-8, there are numerous other less notable companies with smaller fighter designs.

And LH were still producing F-22s a few years back even when they were developing the F-35 and were working on numerous other projects which you can think up yourself.
It's not like every engineer in Chengdu is relegated to the J-20...

Chengdu's working on the JF-17, J-10 and further variants, numerous UAV projects, J-20.
Shenyang's working on the numerous flanker derivatives and are partners in other developments, like the Y-9 for one, I believe.
I doubt there is an SAC "rival " to the J-20 as well, but it wouldn't be excessively difficult for them to produce another flanker variant... That seems like all they're good for these days, and they're not even doing that very well.
 

SinoSoldier

Colonel
Re: The mysterious J-19

The differences between the F-15E and F-15K, while not superficial, are not that significant. I think there are additional EW suites and an IRST, better engines and ability to fire weapons like SLAM and JASSM.
And the F-15E possesses a "very high payload and strike capabilities while retaining its ability to engage in air to air battles" too... The F-15K to the F-15E is basically what the F-15J was to the USAF F-15C.

Not really. The F-15K is the only fighter jet in the world, besides the upcoming JH-7B, to have 15 hardpoints for weapons. It is much more powerful than the conventional F-15E Strike Eagle, to say the least.

The F-15K to F-15E is like J-11BS to J-11B.



We dont' know J-15 or J-11B have AESA. It's probably in the pipeline somewhere but nowhere near as established as the F-18E/F's APG-79 and it's too distant to say with confidence "oh yeah J-11B has AESA", because they don't. J-15 is basically a modern build, Chinese Su-33 with current J-11B level avionics, which themselves are not that world class, just to have a competent fighter aircraft to send off a carrier. We can't really go into a very detailed comparison because we have no idea what the avionics of the J-15 are like, but there are some things you can take for granted, like it won't be entering service with an AESA.

J-19, if it is real, will be what the F-15SE is to the F-15, at best. You really expect far too much from SAC.

(And also, you said J-19 would be comparable to T-50K and F-35... Are you saying T-50 and F-35 are therefore comparable?)

The J-15 is not based off the Su-33. It is based off the J-11B. You can tell from the photos that the radar dome is different from that of the basic Su-27SK or the J-11A. Numerous descriptions of the J-15 and J-11B also point toward the AESA radar.

J-11B is currently not equipped with AESA, yes, but like the F-15s, they are in process of being upgraded. J-15, on the other hand, is getting AESA as soon as it enters production.

J-19's capabilities will be similar to the F-15SE, yes, but a carrier-based fighter will have different priorities and roles.

The F-35 and T-50K are, apart from the J-19, the only 5th-generation carrier-based fighter aircraft, and since no other fighter fits that category, they are the closest to comparison.



Well the J-10B and the J-20 obviously won't use the same radar and I doubt the J-15 will either, simply due to the massive physical differences in radome size between the first two, and also you can't simply put one radar for one plane onto another.
That whole RCS 8 times smaller thing is also dubious and it quoting that doesn't say anything apart from "ha we have some RCS reduction"... And the J-15/J-11B does not have the F-18E/F's level of RCS reduction (from what we can tell in terms of looking at it), which itself isn't that great in the first place.

Overall I feel Huitong's assessment of the J-15 is most accurate, that it's comparable to the F-18C/D (but not in terms of physical size/range/payload, of course).

J-11B/J-15's RCS is rougly 3 m^2 at the time they were first fielded. That's about 8 times stealthier than the Flanker's 25 m^2 RCS. The J-11B is constantly being improved, so we can expect that number to eventually lower.

The Super Hornet's RCS is actually better than most US fighters, with reduction techniques like canted vertical stabilizers.

Huitong's assessment does not account for all the J-15's features, capabilities, and configuration. The different radar and engines are examples of that.

... J-20 isn't receiving the top priority? Can you really say that with such confidence?
SAC were knocked out as the main contractor... their proposal was flat out rejected. If they are working on a "rival" it would most likely be private funded.

Yes, because the J-20, even if produced early, won't b produced in significant numbers.

Currently the PLAAF are focusing on "quasi-5th-generation" jets like the J-19, JH-7B, etc. They know that China's defense can't rely on just J-20s and that there is no way China could produce as many 5th-generation jets as the US does.

One of SAC's early proposals were knocked out (the picture is on Huitong), but they have multiple ones. One very likely still remains (a forum member quoted Aviation Week calling it the "J-21"), and it is very likely that it will be an air-superiority fighter. The J-20 is a strike fighter, not exactly a "multirole" fighter. Think of the SAC's fighter as the "F-22" and the J-20 as the "F-35".

It makes sense to have two 5th-generation models, one for strike, one for air superiority.
 

Blitzo

Lieutenant General
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Re: The mysterious J-19

Not really. The F-15K is the only fighter jet in the world, besides the upcoming JH-7B, to have 15 hardpoints for weapons. It is much more powerful than the conventional F-15E Strike Eagle, to say the least.

"To say the least"?? What does that mean?
And you're not seriously justifying the supposed "much more powerful" diifference between the F-15K and F-15E in terms of numbers of hard points?? I hope you also realize you can change the number of hardpoints with racks which can hold more than one weapon right? I'm sorry but wth?

The F-15K to F-15E is like J-11BS to J-11B.

Not quite.
J-11B to J-11BS = F-15C to F-15D. F-15E to F-15K is a redundant comparison seeing as they're so damn similar.


The J-15 is not based off the Su-33. It is based off the J-11B. You can tell from the photos that the radar dome is different from that of the basic Su-27SK or the J-11A. Numerous descriptions of the J-15 and J-11B also point toward the AESA radar.

I suppose it's not based off the Su-33, it's based off a T-10K prototype they got from Ukraine from which the Su-33 was also developed.
What descriptions point to AESA radar for J-11B and J-15?? For J-10B it's alright, because of the canted radome which would suggest an ESA radar. But there are no physical differences between J-11 and J-11B/J-15 radomes apart from colour.

J-11B is currently not equipped with AESA, yes, but like the F-15s, they are in process of being upgraded. J-15, on the other hand, is getting AESA as soon as it enters production.

Well I wish I was as confident as you were on the matter.

J-19's capabilities will be similar to the F-15SE, yes, but a carrier-based fighter will have different priorities and roles.

I don't know about capabilities, but J-19 will certainly not have the level of stealth of T-50 or F-35, which is what I was getting at. A carrier based fighter compared to a land based fighter won't have that different roles, only one of them will be done from a ship. An RAAF F-18E/F and a USN F-18E/F will have practically identical "roles," if you allow me to use that imprecise word.

The F-35 and T-50K are, apart from the J-19, the only 5th-generation carrier-based fighter aircraft, and since no other fighter fits that category, they are the closest to comparison.

There's no such thing as the T-50K yet.
And if you use that justification then we may as well say the F-35 is one of the few 5th generation fighters close to being operational therefore F-35 are close to F-22...



J-11B/J-15's RCS is rougly 3 m^2 at the time they were first fielded. That's about 8 times stealthier than the Flanker's 25 m^2 RCS. The J-11B is constantly being improved, so we can expect that number to eventually lower.

You know I'm not even going to ask for numbers or sources now.

The Super Hornet's RCS is actually better than most US fighters, with reduction techniques like canted vertical stabilizers.

Better than most US 4th generation fighters, sure. Compared to 5th generation... well let's not go there.

Huitong's assessment does not account for all the J-15's features, capabilities, and configuration. The different radar and engines are examples of that.

Yeah that's because he waits for credible informaton to come out about these aspects before jumping to wildly optimistic conclusions. No result is better than a faulty one.

Yes, because the J-20, even if produced early, won't b produced in significant numbers.

Currently the PLAAF are focusing on "quasi-5th-generation" jets like the J-19, JH-7B, etc. They know that China's defense can't rely on just J-20s and that there is no way China could produce as many 5th-generation jets as the US does.

One of SAC's early proposals were knocked out (the picture is on Huitong), but they have multiple ones. One very likely still remains (a forum member quoted Aviation Week calling it the "J-21"), and it is very likely that it will be an air-superiority fighter. The J-20 is a strike fighter, not exactly a "multirole" fighter. Think of the SAC's fighter as the "F-22" and the J-20 as the "F-35".

It makes sense to have two 5th-generation models, one for strike, one for air superiority.

I actually honestly don't know how to reply to this, I'm going to give up here.
 

bd popeye

The Last Jedi
VIP Professional
There's no need for a seperate thread, this can be discussed in the current Flanker thread...

Exactly.. stop opening threads for every perceived new aircraft.

bd popeye super moderator
 

SinoSoldier

Colonel
Re: The mysterious J-19

"To say the least"?? What does that mean?
And you're not seriously justifying the supposed "much more powerful" diifference between the F-15K and F-15E in terms of numbers of hard points?? I hope you also realize you can change the number of hardpoints with racks which can hold more than one weapon right? I'm sorry but wth?

F-15K has more powerful 131 kN engines, more powerful EW suite, more powerful radar, night vision cockpit, Joint Helmet Mounted Cueing System, IRST, more hardpoints, and more.

The F-15E has none of the above

The F-15K is generally considered the most advanced F-15E variant.

You can't simply "add" extra hardpoints. What you are referring to is a special type of weapons station that is able to hold a cluster of weapons on a single hardpoint. The number of fixed hardpoints can not be changed.



Not quite.
J-11B to J-11BS = F-15C to F-15D. F-15E to F-15K is a redundant comparison seeing as they're so damn similar.

Read my above paragraph.


I suppose it's not based off the Su-33, it's based off a T-10K prototype they got from Ukraine from which the Su-33 was also developed.
What descriptions point to AESA radar for J-11B and J-15?? For J-10B it's alright, because of the canted radome which would suggest an ESA radar. But there are no physical differences between J-11 and J-11B/J-15 radomes apart from colour.

The T-10K was studied. That is no indication that the design was used in the development of the J-15. It is possible that certain features such as the carrier arrestor hook may have been developed from the T-10K, but the main technologies have already been surpassed by the J-11B. There is no significant difference between the J-15 and J-11B.

You don't need to have a different-shaped randome to house an AESA radar. From what we know, the J-15 rumors and descriptions mentions an AESA radar in both the J-15 and J-11B. It is also logical to incorporate an AESA as successful development has been achieved.

Well I wish I was as confident as you were on the matter.

Confidence works differently from logic.

I don't know about capabilities, but J-19 will certainly not have the level of stealth of T-50 or F-35, which is what I was getting at. A carrier based fighter compared to a land based fighter won't have that different roles, only one of them will be done from a ship. An RAAF F-18E/F and a USN F-18E/F will have practically identical "roles," if you allow me to use that imprecise word.

I never said that the J-19, if it exists, will be as stealthy as the T-50K or the F-35.

It is unsure whether the J-19 is the same aircraft as the "Silent Flanker" or not.

A carrier-based fighter's roles are drastically different from a land-based fighter's roles. Carrier-based fighters have to take care of both air-to-air operations and air-to-surface operations because carriers don't usually carry two kinds of combat aircraft.

There's no such thing as the T-50K yet.
And if you use that justification then we may as well say the F-35 is one of the few 5th generation fighters close to being operational therefore F-35 are close to F-22...

T-50K will be deployed in 2016.

You can say that the F-22 and F-35 are comparable, but with the F-35 and T-50K being both 5th-generation and naval-based, they share even a closer common ground.



You know I'm not even going to ask for numbers or sources now.

3 m^2 of RCS for initial batch J-11B (as of 2004).

Here is one of the earliest reports of the J-11B (please note that the RCS is lower now):
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Better than most US 4th generation fighters, sure. Compared to 5th generation... well let's not go there.

Uh, that's what I just said. 5th-generation fighters don't make up a sizable portion of the United States Air Force.

Yeah that's because he waits for credible informaton to come out about these aspects before jumping to wildly optimistic conclusions. No result is better than a faulty one.

You don't need "credible information" to know that the J-15 carries a different radar, has much lower RCS than typical Flankers, and is focused on strike roles.
 

Blitzo

Lieutenant General
Staff member
Super Moderator
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Re: The mysterious J-19

F-15K has more powerful 131 kN engines, more powerful EW suite, more powerful radar, night vision cockpit, Joint Helmet Mounted Cueing System, IRST, more hardpoints, and more.

The F-15E has none of the above

The F-15K is generally considered the most advanced F-15E variant.

So basically F-15K is a slightly better F-15E?
I know the context is that we're talking of the F-15E as it is, but it will undergo various MLUs and the like as time goes on.

You can't simply "add" extra hardpoints. What you are referring to is a special type of weapons station that is able to hold a cluster of weapons on a single hardpoint. The number of fixed hardpoints can not be changed.

That's exactly what I refer to. An extra "fixed" hardpoint or two won't change the maximum load out that significantly to validate saying the F-15K is that much better than the F-15E as it currently is.





Read my above paragraph.

I have, and J-11BS is still a two seater of J-11B just like how F-15D is a two seater of F-15C, or how J-10AS is a two seater of J-10S. J-16, if it exists will be to the J-11BS what the F-15E is to the F-15D. Saying F-15K instead is just a vain attempt to add extra value points to the aircraft when overall it makes little difference to the class and capability in said class.


The T-10K was studied. That is no indication that the design was used in the development of the J-15. It is possible that certain features such as the carrier arrestor hook may have been developed from the T-10K, but the main technologies have already been surpassed by the J-11B. There is no significant difference between the J-15 and J-11B.

I suppose you can say there is no significant difference between the J-15 and J-11B... I suppose then there's also little difference between Su-33 and Su-27? And remember at the end of the day there is little difference between J-11B and Su-27, with the former basically a modernized version of the latter. In that case J-15 is really based off the Su-27 with carrier related technologies from the T-10K prototype.

You don't need to have a different-shaped randome to house an AESA radar. From what we know, the J-15 rumors and descriptions mentions an AESA radar in both the J-15 and J-11B. It is also logical to incorporate an AESA as successful development has been achieved.

I realize you don't need to have a canted radome to have ESA, but you assume from your "sources" that they do, without valid proof either by word or physical, to back it up yet.
And your last sentence is illogical. The US have had AESA technology for years yet the USAF's AWACS isn't. It's not a given that you must adopt the newest technology the second it's finished development or whatever.

Confidence works differently from logic.

Tell me about it.

I never said that the J-19, if it exists, will be as stealthy as the T-50K or the F-35.

It is unsure whether the J-19 is the same aircraft as the "Silent Flanker" or not.

A carrier-based fighter's roles are drastically different from a land-based fighter's roles. Carrier-based fighters have to take care of both air-to-air operations and air-to-surface operations because carriers don't usually carry two kinds of combat aircraft.

... Both the USAF and USN have multi role aircraft as the vast majority of their fighter aircraft fleet. The USN used to have F-14s act as the fleet superiority fighter and the F-18 as the main strike aircraft. Obviously as the ability to deliver PGMs became more common F-14s could act as strike as well, but you make it sound like air force fighters are dedicated, single role and USN are multirole when in reality it could be either or.

T-50K will be deployed in 2016.

The Russians will be lucky to get the standard T-50 at IOC by 2016... And a naval PAK FA would be based where? Admiral Kuznetsov? Lol, they'll be luckky to get their Mig-29Ks by 2016...

You can say that the F-22 and F-35 are comparable, but with the F-35 and T-50K being both 5th-generation and naval-based, they share even a closer common ground.

Yet they're in a completely different weight class, which is a bigger difference which the similarities can not compensate for.

A 747 has wings and can fly, just like an F-15. Bam, they're similar.

3 m^2 of RCS for initial batch J-11B (as of 2004).

Here is one of the earliest reports of the J-11B (please note that the RCS is lower now):
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I don't dispute that the J-11B probably has had some RCS reductions in some way, but the quoting of numbers with such confidence and promoting them as such a major addition in capabilities is misuigded, in my opinion.

Uh, that's what I just said. 5th-generation fighters don't make up a sizable portion of the United States Air Force.

I know, the point is that some stealth shaping will always be better than no stealth shaping. But when you compare it to a dedicated stealth aircraft like the F-22 the differences between 4th gen and 5th gen stealth shaping and 4+ and 5th gen stealth shaping become small. That being said, aircraft like the F-15SE and F-18E/F growth hornet, both of which can carry weapons internally in some way or another are more comparable.

You don't need "credible information" to know that the J-15 carries a different radar, has much lower RCS than typical Flankers, and is focused on strike roles.

How much more "different' how much of a "lower" RCS? Is it even worth mentioning? And yes you do need credible information. The only two suggestions that J-15 was to have strike capability was that the model on the Varyag facility in Wuhan had carried a YJ-83K/KD-88 missile on one of its hard points and that it was supposedly based on the J-11B, and would therefore have strike capabilities.
But now whether J-11B has credible strike capabilities are in dispute so this is why we need credible information.
 

challenge

Banned Idiot
Re: The mysterious J-19

3 m.RCS is still offer a very large target. according to a report from chinese website, further work to reduce J-11B overall RCS.
 

SinoSoldier

Colonel
Re: The mysterious J-19

So basically F-15K is a slightly better F-15E?
I know the context is that we're talking of the F-15E as it is, but it will undergo various MLUs and the like as time goes on.

No. The F-15K is a heavily upgraded variant of the F-15E with upgraded avionics, engines, electronics, and heavier payload.

The F-15K is more powerful (in terms of strike) than any J-11B variant currently deployed.



That's exactly what I refer to. An extra "fixed" hardpoint or two won't change the maximum load out that significantly to validate saying the F-15K is that much better than the F-15E as it currently is.

That's not what I was pointing out. Each aircraft has a fixed number of weapons stations. The F-15K simply has more weapons stations than the F-15E. This means the F-15K can carry a lot more weapons especially if cluster hardpoints are used.





I have, and J-11BS is still a two seater of J-11B just like how F-15D is a two seater of F-15C, or how J-10AS is a two seater of J-10S. J-16, if it exists will be to the J-11BS what the F-15E is to the F-15D. Saying F-15K instead is just a vain attempt to add extra value points to the aircraft when overall it makes little difference to the class and capability in said class.

Huitong puts the J-16's capabilities as superior to the Su-30MKK, which is widely regarded as equivalent or even superior to the F-15E. J-16 will have much more powerful avionics, greater weapons load, and range.

J-16's improvements over the J-11B/S is very similar to the F-15K's improvements over the F-15E.


I suppose you can say there is no significant difference between the J-15 and J-11B... I suppose then there's also little difference between Su-33 and Su-27? And remember at the end of the day there is little difference between J-11B and Su-27, with the former basically a modernized version of the latter. In that case J-15 is really based off the Su-27 with carrier related technologies from the T-10K prototype.

The Su-33 prototype was in fact the Su-27K. There is no major difference between the Su-27 and Su-33 besides the canards and landing equipment.

There is little difference between the basic J-11 and Su-27SK, true, but certainly not the J-11B. The J-11B is a completely indigenous fighter apart from the airframe. Avionics, engines, coating, composite materials, electronics, weapons systems, cockpit, etc, are completely indigenous. The J-11B is pretty much a new fighter except for the airframes.

The J-11B is classified different from the Flanker and is not part of the Flanker family.

I realize you don't need to have a canted radome to have ESA, but you assume from your "sources" that they do, without valid proof either by word or physical, to back it up yet.
And your last sentence is illogical. The US have had AESA technology for years yet the USAF's AWACS isn't. It's not a given that you must adopt the newest technology the second it's finished development or whatever.

None of the reports that I have read ever mentioned about randomes being canted to house AESAs. But from what we have learned from the F-16E and J-10B, a slanted random holds a very high probability for it to hold an AESA.

China's fighter aircraft currently lacks versatile avionics. An AESA radar (such as the one on the J-10B) will be a very cheap way to upgrade existing fighters by a great deal without having to rely on other technologies such as engines or airframes. Being that AESA are already in testing or developed, I don't see why it can't be mass-produced and installed.

Tell me about it.
Read my last paragraph above.

It is unsure whether the J-19 is the same aircraft as the "Silent Flanker" or not.
This is also a mystery to me. However, due to the fact that the J-19 picture differs greatly from what Huitong has said about the Silent Flanker, I doubt that it's the same aircraft.

An article written by an ex-SAC employee also explains that there are multiple (at least three) different stealth-enhanced variants of the J-11.


... Both the USAF and USN have multi role aircraft as the vast majority of their fighter aircraft fleet. The USN used to have F-14s act as the fleet superiority fighter and the F-18 as the main strike aircraft. Obviously as the ability to deliver PGMs became more common F-14s could act as strike as well, but you make it sound like air force fighters are dedicated, single role and USN are multirole when in reality it could be either or.
What I'm saying is that land-based aircraft can be more flexible and doesn't have to take on multiple roles. Land-based aircraft can be either in the form of air-superiority (like F-16 or F-22) or strike (like F-15E or F-35).

Naval aircraft will have to combine roles.

The F-14 was mainly an interceptor. The reason why the F/A-18 was deployed along with it is because the F-14 is nearing its retirement age and they wanted to make the F-14's last days count.

The Russians will be lucky to get the standard T-50 at IOC by 2016... And a naval PAK FA would be based where? Admiral Kuznetsov? Lol, they'll be luckky to get their Mig-29Ks by 2016...
This is taken from the Sukhoi schedule. Sukhoi rarely misses its deadlines and they are far more than ready to build another T-50 derivative. I wouldn't be surprised if their FGFA makes it to the production line in a few years.

Yet they're in a completely different weight class, which is a bigger difference which the similarities can not compensate for.

A 747 has wings and can fly, just like an F-15. Bam, they're similar.
F-35 isn't what you call a "light fighter". Both T-50 and F-35 are heavy-class fighters that are built for power (one of the key aspects of a strike aircraft). Seeing that the Mikoyan LMFS will fill the light fighter role, it's safe to assume that the T-50K will be a strike fighter.

Role is the most important variable by which aircraft are classified, and seeing that both the F-35 and T-50K share similar purposes, their relationship can be justified.

I don't dispute that the J-11B probably has had some RCS reductions in some way, but the quoting of numbers with such confidence and promoting them as such a major addition in capabilities is misuigded, in my opinion.

My numbers come from sources. The number is in all articles that mention the J-11B's RCS.

If you go about with your "misguided" theory, then the J-20 technically doesn't exist.

I know, the point is that some stealth shaping will always be better than no stealth shaping. But when you compare it to a dedicated stealth aircraft like the F-22 the differences between 4th gen and 5th gen stealth shaping and 4+ and 5th gen stealth shaping become small. That being said, aircraft like the F-15SE and F-18E/F growth hornet, both of which can carry weapons internally in some way or another are more comparable.
Yeah, but when the 4.5++ generation fighter is compared to a 4th-generation fighter, the differences are big.

How much more "different' how much of a "lower" RCS? Is it even worth mentioning? And yes you do need credible information. The only two suggestions that J-15 was to have strike capability was that the model on the Varyag facility in Wuhan had carried a YJ-83K/KD-88 missile on one of its hard points and that it was supposedly based on the J-11B, and would therefore have strike capabilities.
But now whether J-11B has credible strike capabilities are in dispute so this is why we need credible information.
J-15 is based on J-11B, so logically the J-15 will have the same radar-reduction features the J-11B uses. J-11Bs are 8 times stealthier than the Flanker and are being constantly upgraded, therefore it's expectable that the J-15 will be not much different from that.

I have pictures of J-11B models and SAC posters of J-11B with guided air-to-surface equipment. Need I show you them?

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