J-20 5th Gen Fighter Thread VI

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Captain
There's an argument for not including F-22s. The F-22s would mean that Chinese VHF radar would be able to pick up the B-2 by the presence of its escorts. That said, Chinese HF or LF radar would be able to pick up the B-2s. The ELF installation they set up would be able to achieve a similar effect.
 

gelgoog

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Yes, AFAIK the F-117 typically was used without escorts, I would not be surprised if the B-2 was the same.
The F-22 even lacks range compared with the B-2 to be a proper long range escort. They might use a different doctrine with the B-21 however.

China needs the J-20 mostly to combat the other stealth fighters. I think that is the main objective of it, destroying enemy stealth fighters and their support assets.
The amount of F-22s which the USAF can actually field is limited. I would be surprised if they have more than 90 working at any given time.

So the main opponent for the next decade should be the F-35 and older generation aircraft.
Also the more emphasis the other Asian military powers put into the F-35B the less budget they will have for the longer range variants.
The other Asian countries can forward deploy them but that requires bases and fuel depots. You can just hit those.

I am more concerned about the fact that the J-20 has a similar issue vs the F-22 in that it is limited in the length of the weapons it can carry.
So I expect the Chinese to put more efforts into new generation air-to-air missiles for the J-20 to make it more competitive.

Between that and the lack of thrust-to-weight ratio with the current engines the Chinese have a lot to work to do.
I do not discount the possibility of a larger variant of the J-20, more suited for the endurance missions, being introduced over the next decade however.
Just like the Flanker had several variants.
 

Inst

Captain
Once again, the J-20 is more likely to be deployed vs tankers and AEW&C craft early on. For the J-20 to effectively counter enemy stealth aircraft, you'd need counterstealth AEW&C to cue the EOTS / EODAS on the J-20 to IR-track the target, and the H-600 AEW&C isn't online yet.

The other problem becomes missiles. The PL-15, with a radar seeker, is not particularly useful vs stealth aircraft because while stealth-aircraft can defeat fighter-sized X-band tracking radars, they get even more effective vs Ku-band missile seekers. The PL-10 IR missile is capable enough with around 60km of range (based on rumors and the AIM-9X Block III's performance), but it still eventually hits the edge of its effective range at these distances.
 

gelgoog

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In the case of long-range missiles they typically support some kind of mid-course guidance. The problem is these communications can be intercepted. But you can always put a much larger and expensive sensor on the aircraft than on the missiles.

I know the French typically support multiple types of seekers on their air-to-air missiles and the Soviets also used to at one point. For example in the huge R-40 'Acrid' missiles on the MiG-25. Since no one is quite sure about would work better right now we might get to see a system like that with multiple sensor options. Look at the specifications of the MICA NG. With regards to long distance missiles the most advanced design right now is likely the Meteor and that is still radar guided.
 

tidalwave

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What makes you certain that each B-2 will only be escorted by a couple of F-22s?

The B-2 is an uncompromised VLO design and likely does not require its own fighter escorts.

Because of China's various famed anti stealth radars being rolled out.
If B-2 by itself and somehow got discovered, it would be sitting duck chased down by any fighters assisted by antistealth radar. So very high chance it would escorted by F-22 s.

Recent retired Admiral of PLA talked about sinking two US carriers caused a big reaction from US side and US response would be deploying B-2 to attack DF-26, DF-21D setups at shuguan at Guangdong.

Currently there's no J20 stationed at the Southern Theater, only SU35, that's a liability
 
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Inst

Captain
BI is really a sort of rag; it's a bit like the "Weekly Enquirer" version of the Wall Street Journal.

As far as Chinese anti-stealth radar, they shouldn't work vs the B-2 or B-21 given that its design gives it broadband stealth. The only other possibility is that ELF transmitters the Chinese have built could work, or HF / LF radars the Chinese don't use could also work, but it'll be ridiculously hard to trigger resonance on the B-2 or B-21.
 

tidalwave

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they shouldn't work vs the B-2 or B-21 given that its design gives it broadband stealth. .

No such thing as broadband that works for all spectrum of frequency. Everything is relative.

There's low frequency and then there's very low frequency.

Very low frequency long wave radar will always detect stealth plane
 

taxiya

Brigadier
Registered Member
Because of China's various famed anti stealth radars being rolled out.
If B-2 by itself and somehow got discovered, it would be sitting duck chased down by any fighters assisted by antistealth radar. So very high chance it would escorted by F-22 s.

Recent retired Admiral of PLA talked about sinking two US carriers caused a big reaction from US side and US response would be deploying B-2 to attack DF-26, DF-21D setups at shuguan at Guangdong.

Currently there's no J20 stationed at the Southern Theater, only SU35, that's a liability
What is the range of B-2? or any strategic bomber for the matter? What is the range of F-22 or J-20 or any fighter for the matter?

There is no way a bomber like B-2 can be escorted by F-22 simply because of the huge difference of operational range. It won't work for US, not China either. The bombers are on their own.

If somehow VLO of B-2 is compromised by new technology, they will have to either take their chance, or cease to function as intended. Fighter escorting tactical bomber was a WWII concept, it will never come back.
 

jobjed

Captain
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, the WS-10 variant being trialed on the J-20 is basically a WS-10B modified for the J-20's engine bay. The engine's various gearboxes and protrusions were pushed out to take up the excess volume. Note the WS-10B was originally made for the J-10.

Gongke also never explicitly confirmed the WS-10C designation, the thread name was just framed that way.

Q:瓦西里·卡申说歼20现在装配的是WS10C发动机,WS10C是个什么水平?

A: 和10b差不多,20专供。
主要是外部附件有变化,为了迁就20上大直径发动机各种接口,飞机附件机匣向外扩了,其它附件位置也有变化。
 
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