J-20 5th Generation Fighter VII

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sndef888

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No, that's nonsense. The plane simply wouldn't fly if the canards were removed, they're intrinsic to the aerodynamics. That would have to be an entirely new aircraft and it would be nuts for CAC to take on such a project when they're working on the 6th gen fighter.
I think you're right. It looks like way too big of a change
 

Philister

Junior Member
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Not really. tactics, pilot training and everything else matter a lot.

I like to use F-22 vs F-35 as an example here. On paper, F-22 has more powerful radar, better T/W ratio, can supercruise, turn faster, carry more missiles, has better all around stealth. Everything looks better. But in reality, it has low readiness (only available 50% of time using very generous metrics), cost a whole lot to maintain, doesn't have the same modern EW suite/avionics architecture as F-35, inferior passive sensor suite, inferior situation awareness and less flexibility to do software upgrade. The more F-35s you have together, the better they become since they can better share their sensor data to overcome the smaller radar and they more of them can just rely on passive sensors to get picked up and they can also confuse enemy more easily with EW suite.

When you have a force multiplier like F-35 and J-20, the more of them you have, the better they become individually and also add capabilities to surrounding fleet.

Something like J-20B (two seater), it's greatest utilities would be from commanding and directing and fusion data from all the aircraft around it. You can't measure its value just by its stealth or radar tracking range or turn rates.
First , F-35 probably is better than current F-22 in a BVR combat, it’s radar isn’t as powerful as F-22s’, but a lot technical progresses have been made since 80s
Second, if they upgrade the F-22 with avionics advanced as F-35s’, raptor would be better in both 1V1 and as a member in the whole system
Third, the system is strong bcc you are strong & every component in the system is strong, there’s no way an army of the weak prevails against an army of the strong
 

siegecrossbow

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First , F-35 probably is better than current F-22 in a BVR combat, it’s radar isn’t as powerful as F-22s’, but a lot technical progresses have been made since 80s
Second, if they upgrade the F-22 with avionics advanced as F-35s’, raptor would be better in both 1V1 and as a member in the whole system
Third, the system is strong bcc you are strong & every component in the system is strong, there’s no way an army of the weak prevails against an army of the strong

I think when people talk about how good or bad a radar is they inevitably focus exclusively on the antenna. Is it AESA or PESA? How big is it? How many elements? If the radar is large, has many elements, and consume a lot of power automatically it is a better radar than its competitors. This is a pretty ignorant way to look at things and overlooks the signal processing portion of the process. What is the signal to noise ratio? Could the enemy aircraft be actually picked out against a “dirty” background at the supposed maximum range? How many false positive targets are there, and how many get “filtered” out by accident? The algorithm and hardware of backend processor is just as important, if not more so than the antenna.
 

Philister

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I think when people talk about how good or bad a radar is they inevitably focus exclusively on the antenna. Is it AESA or PESA? How big is it? How many elements? If the radar is large, has many elements, and consume a lot of power automatically it is a better radar than its competitors. This is a pretty ignorant way to look at things and overlooks the signal processing portion of the process. What is the signal to noise ratio? Could the enemy aircraft be actually picked out against a “dirty” background at the supposed maximum range? How many false positive targets are there, and how many get “filtered” out by accident? The algorithm and hardware of backend processor is just as important, if not more so than the antenna.
Yes! Radar is such a complicated topic ,not just AESA/GAN/output matters , the giant one MIG-31 uses is inferior in almost every aspect to the AWG-9, and it has a PESA antenna, backend also matters a whole lot, but that’s some deep shit I don’t know where to start with
 

Hyper

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For radars I would look at software defined for further development. There is considerable hype but there are customisation benifits and rapid addition of software.
 

tphuang

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Beautiful. Just waiting to see more photos coming out now. There is two possibilities here. The mid year delivery delivered a few and this is one of them. Or all the deliveries came at end of the year and they are already willing to show pictures of this unit in training. The latter would be quite exciting.
First , F-35 probably is better than current F-22 in a BVR combat, it’s radar isn’t as powerful as F-22s’, but a lot technical progresses have been made since 80s
Second, if they upgrade the F-22 with avionics advanced as F-35s’, raptor would be better in both 1V1 and as a member in the whole system
Third, the system is strong bcc you are strong & every component in the system is strong, there’s no way an army of the weak prevails against an army of the strong
You cannot update F-22's avionics as advanced as F-35. It's internal layout is confined to what was frozen from the early 2000. They can't add EOTS right now, because there is no space. They had to use external pod for EW (at least I think that's what it is), because it's EW design is based on what was known from early 2000s. So while it is true you can upgrade F-22 radar to something like F-35 in technology, there are still limitations on how good F-22 can be.

Aside from that, the basic idea is that certain aircraft dramatically improves rest of your system when more of them are added. F-35 and J-20 are both force multipliers in how they can make everything else better. If you have 3 or 4 J-20 in a tight area controlling UAVs, even if it gets shot at, how would AMRAAM (with its small seeker) be able to tell J-20 from decoys or UAVs or completely nothing? The more J-20s you have, the more it will confuse the opposing radar and seekers.
I think when people talk about how good or bad a radar is they inevitably focus exclusively on the antenna. Is it AESA or PESA? How big is it? How many elements? If the radar is large, has many elements, and consume a lot of power automatically it is a better radar than its competitors. This is a pretty ignorant way to look at things and overlooks the signal processing portion of the process. What is the signal to noise ratio? Could the enemy aircraft be actually picked out against a “dirty” background at the supposed maximum range? How many false positive targets are there, and how many get “filtered” out by accident? The algorithm and hardware of backend processor is just as important, if not more so than the antenna.
Sure and when you add in the additional RF produced by modern EW suite to confuse radar, it gets even harder. A lot about modern radar and EW suite is all about how you can identify the other aircraft without giving away your own position. And also confuse the other aircraft without giving away your own position. Everything is a combination of radar + ECM + ESM + passive sensors. Very hard to work these things out with just radar range and RCS.

My point was that even if J-20 RCS is 10 times greater than F-35 for the front (which I think is entirely possible), it's not end of the world. It has larger radar, more space for EW suite, higher thrust engine to provide power, better missiles and most likely better maneuverability (at least at high speeds). I mean J-16's RCS is probably 5 to 10 times that of F-16Vs. Are we concerned that J-16s will be outmatched by F-16Vs?
 

Jesuan

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First , F-35 probably is better than current F-22 in a BVR combat, it’s radar isn’t as powerful as F-22s’, but a lot technical progresses have been made since 80s
Second, if they upgrade the F-22 with avionics advanced as F-35s’, raptor would be better in both 1V1 and as a member in the whole system
Third, the system is strong bcc you are strong & every component in the system is strong, there’s no way an army of the weak prevails against an army of the strong
Nope, F-22 still has better speed than the F-35 and that makes any missile from a F-22 more dangerous in BVR. The same applies to the J-20. Any inferiority in the avionics of a F-22 is realistically compensated by the AWACS today and can be fixed with an electronics update in the future should the need arise. Just think how much better and cheaper is your computer today than during the 90s.
 

optionsss

Junior Member
First , F-35 probably is better than current F-22 in a BVR combat, it’s radar isn’t as powerful as F-22s’, but a lot technical progresses have been made since 80s
Second, if they upgrade the F-22 with avionics advanced as F-35s’, raptor would be better in both 1V1 and as a member in the whole system
Third, the system is strong bcc you are strong & every component in the system is strong, there’s no way an army of the weak prevails against an army of the strong
That's not at all how system versus system works. In WW II, a German Panzers lacks armor and fire power to the French tanks. and they most likely would lose any individual engagement. The best weapons against tank is not a another tank, same thing here the best thing against fighter is not another fighter aircraft. You can significantly weaken an individual platforms effectiveness by limiting it's support system and force multiplyer.

Individual versus individual comparison are almost pointless because just because a weapon appears to be similar does not mean it will fill the same role in the opposing force.
 

tphuang

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Nope, F-22 still has better speed than the F-35 and that makes any missile from a F-22 more dangerous in BVR. The same applies to the J-20. Any inferiority in the avionics of a F-22 is realistically compensated by the AWACS today and can be fixed with an electronics update in the future should the need arise. Just think how much better and cheaper is your computer today than during the 90s.
Again, F-22's internal layout was done in the late 90s. The space, heat and machine interfacing would be facing constraints from the original design. Shilao's podcast stated that the big change in J-20B is just being able to redesign the internal layout to make usage of the latest systems available. Even when they upgrade J-20II with new radar & mission computers, it would face the constraints from a layout determined back in late 2000s. As such, you could really upgrade F-22's avionics to have the same performance as a new aircraft of the same size.

F-22 conceptually is designed based on what was available back in the 90s. AI wasn't that big of a thing back then. It just doesn't offer the same situation awareness or sensor fusion that you'd find on F-35 and J-20. There is a reason USAF leadership never mentions F-22 in any of their future fleet planning.
 
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