H-20 bomber (with H-X, JH-XX)

Tomboy

Junior Member
Registered Member
An unconfirmed news, the H20 static test machine was transferred to the strength institute via the highway in Yanliang today for testing. The publisher attached a short video of the highway closure.
pls post the vid here if possible
 

ACuriousPLAFan

Brigadier
Registered Member
There is no information available for analysis in the video. It only shows the traffic police stopping some civilian vehicles that were about to leave the highway near the road sign with the words "Yanliang" on it.

How about just share the video post link here instead?

Besides, how do you even know that the machine is about the H-20 when there is no information available from the video for analysis? The H-20 isn't the only new project that the XAC is working on either - Let alone the fact where Yanliang is the test and evaluation base for many other types of Chinese aircrafts.
 
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ACuriousPLAFan

Brigadier
Registered Member
信息来源于聊天群组,发布者也只是揣测,我在最早那条帖子里已经注明了这是未经证实的消息,仅供各位参考。另外我对在网络上出现公开的照片、视频持悲观态度---如果官方真的不想公开,完全可以做到。

Firstly, this forum requires everyone to post in English. But since you're new here, that's fine.

Secondly, just as previously mentioned - Xi'an AC isn't only working on the H-20, and that Yanliang isn't only testing the H-20. Therefore, that "static test machine" can actually be for any other types of aircrafts currently getting worked/tested on at Yanliang.

Moreover, given how the information you've provided is just based on personal inference and neither from official/semi-official nor non-official sources which are reputable and reliable (i.e. the likes of Guancha Trios, Adorable Whale etc), plus without any substantial proof of what the video is about - There is no point in continuing this discussion based on empty information.
 
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tphuang

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Do you actually think something like the RQ-180 is comparable to a B2 or B21? If you start extrapolating the development of drones to manned aircraft, there is no limit to the amount of absurd equivalencies you could draw.
well depends on what we are talking about here. What do you need to have access to have huge 55m long lightweight wings that can store a lot of fuel?

You cannot build a 52m long flywing bomber or UCAV if you don't have tech to keep the weight down on that. That's just a reality. Otherwise, the larger your wing gets, the heavier your aircraft is and 2 engines become not enough.

RQ-180 has lower requirement than WZ-X. 40m wing vs 52m wing. And if you look at the long end of wing. it goes without "body" for longer than B-2 so the structure and material has to be extremely light and strong to tolerate the force/load against it while also carry significant amount of fuel to allow for the longer range and radar antenna to be installed. So level of material science will also enable H-20 to be built to certain size with certain range and payload.

It'll be difficult though, 5000km range hypersonic cruise missile is still going to be extremely long and heavy(Probably as large as the DF-21D). You'll also need a large booster stage to boost the missile to the speeds required to ignite its scramjet. B-2 sized flying wing is nowhere near large enough for internal carriage of such weapons, which IMO means H-20 would take on a more exotic design. But H-20 is meant to make its debut in less than 18 months so I guess we'll see if XAC disappoints or not.
H-20 project keeps getting pushed back. I think J-36 really changed the requirement for H-20. If you already have a 6th gen aircraft with full 2IC range, then your strategic bomber needs to push for higher requirement. I have no idea what their requirements are, but CONUS is a reasonable path to take. So, then the question is how far can you push H-20's range and payload so that it can say hit Seattle or San Diego?

Well, that's all big in-service airplane experience China currently has. When it comes to flying wings, there are only relatively smaller drones, where in-flight balance issues for example don't even come up. Wz-x is a new, just unveiled development. It's not in service.
This is why H-20 will be so important in the first place, it and the C929. Last big bastion of a/c design China hasn't shown yet are big, long range aircraft.
Those aren't magic. They aren't simple either, prone to delays and cost overruns. Ultimately, even in the US, counting planes reaching prototype stage, failure rate for multi-engine strategic bomber development programs is over 30%. Soviets had something similar.
I think it's important to separate fly wing designs with just large passenger planes.
They've had experience now with GJ-11 for quite a while, so WZ-X isn't exactly new. But clearly, it's a far more ambitious product.

I use WZ-X as an example to point out the improvement that had to be made vs 10 years ago for them to just produce a prototype like this out of blue.
That's for sure, B-2 is a 35 year old design. But that's combat, avionics and stealth. I don't see how *Aircraft* difficulty part changed since then. If anything, B-2 can be more ambitious than B-21 in this case, as it's both hi- and lo- aircraft, not a glorified powered kite.
So, I think we can agree that new aircraft project that are ambitious should generally be considered difficult.

I just have a problem with B-2 to be considered an ambitious design using today's technology.

Goal for H-20 has to be more ambitious than B-2. And I would say its range and payload + EW/power requirement has to be a lot higher than B-21. When you have 4 engines instead of 2, all your requirements better go up.

If it does have supersonic speed, what is stopping h-20 from also carrying BVR missiles like PL-17 and also carry a big radar. That way they can self escort. Essentially an even bigger version of J-36, launching AA missiles, carrying big radar, acting as an AWACS, directing drones. The only thing it will lack is maneuverability, but that can be mitigated by staying far behind. Essentially a huge missile truck. Such a platform will be very useful.
Absolutely nothing. In fact, H-20 should be able to carry PL-17. After all, B-21 can carry AAMs also,
 

Aval

New Member
Registered Member
Perhaps a bit of a stretch, but I've observed a (possible) increased prevalence of the "Hi/Lo" mix for Chinese next-gen military platforms procurement.
Not in a strictly "more expensive/less expensive" sense, but in how both designs would cover the same core role but have their own specialisations to cover additional (secondary) roles that the other in the mix cannot, and furthermore covers both ends of the "revolutionary/conservative" design axis to hedge bets with unproven technologies.
  • J-20 and J-35/A
  • J-36 (J-XDC) and J-50 (J-XDS)
  • Type-004 (new CVN) and Type-003a (Fujian sibling)
I suspect this is because a Hi/Lo mix is the optimal approach to procurement, the main limiter being funding. And there seems to be more money going into the PLA these days.

Could it be possible that the anticipated bomber will also follow this doctrine, and so the conflicting rumours are the result of two separate designs being developed concurrently?
So we could be seeing both a subsonic and supersonic bomber emerge, with different characteristics in unrefueled range and payload. Both would be able to do the same core role (strike within 2IC), but one is specialised for it, while the other has capability to strike 3IC (or further).

There's also the possibility for unmanned drones to fit into this mix. The WZ-X we are seeing may be the B-2 equivalent, a subsonic bomber of a tried-and-true design for strike in the 2IC, while the H-20 is repurposed and redesigned for a more exotic role (like supersonic design, and strike 3IC or CONUS). Or there might be two manned bomber programmes.
 
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