Chinese Hypersonic Developments (HGVs/HCMs)

pevade

Junior Member
Registered Member
Grim Reapers are trash tier when it comes to objectivity and realism and their need to cater to the core base, who are overwhelmingly extremely US/NATO fanboys.

You can watch their ‘sims’ for entertainment value, but their predictive qualities are on par with Tom Clancy war porn.
Bruh, DCS sims cannot even come close to IRL performance given that there are many assumptions and unknowns built into the models.
 

ougoah

Brigadier
Registered Member
According to those leaked US intel debriefs some months ago, DF-27 has been flying for long enough that the US to consider it a well known secret that the least sensitive clearance level debriefs mention it.

DF-27 in that document leaked suggests the US believe it may be capable of anti-ship role. Perhaps they meant another/other platforms rather than the DF-27 but was mentioned on the same page.
 

ougoah

Brigadier
Registered Member
Bruh, DCS sims cannot even come close to IRL performance given that there are many assumptions and unknowns built into the models.

Yes absolutely ridiculous idea to use DCS to sim these sorts of battles. But most youtubers do those on DCS for entertainment and nothing more.

In that particular sim, they don't even include the whole arsenal of China's ASBMs, HGVs, and HCMs. All of those would be used in conjunction with more conventional types of anti-ship weapons that would be over 20x as many as simulated. In truth, a naval fight here would be one of range and attrition.
 

CMP

Senior Member
Registered Member
According to those leaked US intel debriefs some months ago, DF-27 has been flying for long enough that the US to consider it a well known secret that the least sensitive clearance level debriefs mention it.

DF-27 in that document leaked suggests the US believe it may be capable of anti-ship role. Perhaps they meant another/other platforms rather than the DF-27 but was mentioned on the same page.

Any clue on inventory volumes? Hoping we have enough to supersaturate all imperial and vassal bases/depots/ports in Asia 10x over.
 

ougoah

Brigadier
Registered Member
Any clue on inventory volumes? Hoping we have enough to supersaturate all imperial and vassal bases/depots/ports in Asia 10x over.

Surely people who have half an inkling on actual inventory stockpiles have got better things to do than talk to commoners on this forum.

Those MRBM or IRBM boosted HGVs aren't cheap even if China can mass produce the HGV relatively affordably, the boosters themselves are a bit of an opportunity cost to brute force supersaturate.
 

ACuriousPLAFan

Brigadier
Registered Member
DF-27 in that document leaked suggests the US believe it may be capable of anti-ship role. Perhaps they meant another/other platforms rather than the DF-27 but was mentioned on the same page.
DF-17 is already well-known to be capable of anti-ship role.

Therefore, I believe that the DF-27 - Which should essentially be broadly similar to DF-17 in terms of built, i.e. swapping the third-stage of DF-26 with a HGV - Should also be capable of anti-ship role as well.
 

ougoah

Brigadier
Registered Member
DF-17 is already well-known to be capable of anti-ship role.

Therefore, I believe that the DF-27 - Which should essentially be broadly similar to DF-17 in terms of built, i.e. swapping the third-stage of DF-26 with a HGV - Should also be capable of anti-ship role as well.

I actually am not aware there is any real indication or hint from either the US or China that the DF-17 is capable of anti-shipping. I assumed it was primarily for land attack and possibly recce/ ISR like operation, possibly even EW given the size and how much electronic equipment they can fit in it.
 

taxiya

Brigadier
Registered Member
I actually am not aware there is any real indication or hint from either the US or China that the DF-17 is capable of anti-shipping. I assumed it was primarily for land attack and possibly recce/ ISR like operation, possibly even EW given the size and how much electronic equipment they can fit in it.
Warheads of DF-17 and 27 are BETTER fitted than DF-21D and DF-26 for hitting moving target. One can tell a Ferrari is better in raing than a Toyota without being told by anybody.

If you really want a hint, there is a book from China some decades ago studying HGV hitting moving target. The HGVs are the kind of shape of DF-17 and 27. There are even three missiles configurations in the study. Two of them fit precisely in the ranges of DF-17 and 27, the last one is a intercontinental one. I have refered this book multiple times in this forum.

DF-21D and 26 uses symetric gliding body, they are regarded as an old and less advanced technology. DF-17 and 27 have flatter body, their cruising trojectory is flatter giving them longer range and better chance to searh and lock on target and easier to manuaver to the target.
 
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by78

General
The JF-22 hypersonic wind tunnel has passed the acceptance test. The JF-22 can simulate altitudes of 40 to 100 kilometers. The max flow speed is 10km/sec, equivalent to 30 times the speed of sound. It's a crucial piece of infrastructure for China's missile and space programs as well as for developing hypersonic vehicles.

A TV segment on the JF-22 hypersonic wind tunnel. Some specs are as follows:
- Diameter: 2.5 meters
- Length: 167m
- Temperature range of hypersonic flows: 2500°C to 18000°C
- Air pressure: 100 to 10000 standard atmospheres (atm)
- Air flow speed: Mach 5 to 30
- Simulated altitude: 25 to 90km
- Simulation duration: 40ms at Mach 10

Interestingly, the TV segment also reveals that an oblique detonation wave engine (using aviation kerosene) was tested in JF-22's predecessor, the JF-12 hypersonic wind tunnel, and the engine has achieved stable operation at Mach 9. Next, the engine will be tested in JF-22 at up to Mach 16.


53049377913_04a075393b_b.jpg
53049377278_3616a7fca4_h.jpg
 

Temstar

Brigadier
Registered Member
Another interesting screenshot from the JF-22 video:
7f8d08b2gy1hfyrlvflnij21hc0u0wk9.jpg
The top right says something like "aerodynamically assisted orbital adjustment craft". I remember seeing this idea before in discussions about X-37 and Shenlong spacecraft. When it's to do with interplanetary flight it's called aerogravity assist, which is like a more intense version of regular gravitational slingshot where aerodynamics of the craft is also involved and the slingshot has a periapsis so low it goes into the planet's atmosphere.

Basically crafts like X-37 and Shenlong may be able to adjust their orbital inclination cheaply by diving into the atmosphere and use the lift generated by their body instead of using rocket power (thus using the atmosphere as reaction mass). This would allow an extreme amount of flexibility in adjusting orbits and may allow things like suddenly change orbit to rendezvous with targets of opportunity to capture it.
 
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