China's Space Program News Thread

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Quickie

Colonel
A spaceplane has to reach match 25 to get to low earth orbit.

So, anything slower than that is a fast aircraft, not a space plane/space launch vehicle.

It really depends on the type of application. Obviously, to get to low earth orbit and much higher mach, there would have to be a stage using a rocket engine, as the depiction of the aerospace vehicle in the top picture posted above seems to show.

5113ac2c9ac044c281fbbb89a6799f97_th-png.45679
 
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Anlsvrthng

Captain
Registered Member
It really depends on the type of application. Obviously, to get to low earth orbit and much higher mach, there would have to be a stage using a rocket engine, as the depiction of the aerospace vehicle in the top picture posted above seems to show.

5113ac2c9ac044c281fbbb89a6799f97_th-png.45679

I am pessimistic about this launch vehicle.
We saw in the past similar presentations about MAKS, ESA HERMES ,DC-X and so on.
Currently there are same activity about the Sabre, but that moving with snail's speed.

And these presentations looks like funding requesting material, not deisng concepts.

And generaly the payload capacity looks small, only 2 tonns, and capable only to LEO.
Expected life is 100 launch, means the vehicle can launch 200 tonns to LE over its life.

the Saturn V had 150 tonns LEO capacity.
Maybe there is same military demand that can justify it, however in that case even this presentation should be classified.
 

Skywatcher

Captain
Which part is rated for 100 flights; the first or second stage?

Apparently the CASIC rocket first stage spaceplane should be flying by 2020, according to a December 2017 report from Xinhua. I suppose the Tengyun probably refers only to the first stage with the TRCC engines?
 

Quickie

Colonel
I am pessimistic about this launch vehicle.
We saw in the past similar presentations about MAKS, ESA HERMES ,DC-X and so on.
Currently there are same activity about the Sabre, but that moving with snail's speed.

And these presentations looks like funding requesting material, not deisng concepts.

And generaly the payload capacity looks small, only 2 tonns, and capable only to LEO.
Expected life is 100 launch, means the vehicle can launch 200 tonns to LE over its life.

the Saturn V had 150 tonns LEO capacity.
Maybe there is same military demand that can justify it, however in that case even this presentation should be classified.

Did you actually read the reports posted previously that is what we are discussing about. Those are not just presentations but an actual scaled-down hyper-sonic space-plane wind tunnel model and a test hyper-sonic space-plane model that have gone through successful experimental tests, the latter having launched from a test site in the Gobi Desert, reached some sort of orbital altitude (according to the report) and successfully landed back on earth.

the Saturn V had 150 tonns LEO capacity.
The Saturn V LEO payload capacity is allegedly 118 tonne, according to Wiki.
 

Equation

Lieutenant General
Apparently China had already launched a smaller version of this.

China launches scaled down reusable space plane
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| March 8, 2018
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The hypersonic space drone lifted off from the Jiuquan Satellite Launch Centre in Inner Mongolia, accelerated to more than five times the speed of sound and reached orbital altitude before returning safely to ground, according to a researcher with knowledge of the experiment.

China’s goal was to develop a space plane for both military and civilian missions, capable of traveling fast enough to penetrate missile defense systems and with the heft to help rebuild satellite networks or lift tourists to space, the researcher said.

Development of the prototype was led by the China Aerodynamics Research and Development Centre in Mianyang, Sichuan province. Also known as Base 29, the military-run facility has some of the most advanced wind tunnels for hypersonic research in the country.

Ye Youda, a senior hypersonic vehicle researcher working at the base, confirmed the test took place but said he could not give details because the project was classified for defense purposes.

Without revealing the nature of the vehicle, state-run Science and Technology Daily said on February 23 that the test was a “breakthrough”, with the vehicle landing precisely as planned.

Lead scientist Liu Gang was quoted as saying it was the first time China had conducted this kind of test.

“It will be able to take off from a normal airport and take spacecraft into orbit. It will be a revolution for space transport,” Zhang told state broadcaster China Central Television.

He said Tengyun, a civilian version of the space plane, would be able to carry both passengers and cargo into orbit or to a space station.

The vehicle would be reusable – bringing down launch costs – and be driven by a hybrid engine that could take in air in the atmosphere and burn rocket fuel once in space.

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Anlsvrthng

Captain
Registered Member
Did you actually read the reports posted previously that is what we are discussing about. Those are not just presentations but an actual scaled-down hyper-sonic space-plane wind tunnel model and a test hyper-sonic space-plane model that have gone through successful experimental tests, the latter having launched from a test site in the Gobi Desert, reached some sort of orbital altitude (according to the report) and successfully landed back on earth.


The Saturn V LEO payload capacity is allegedly 118 tonne, according to Wiki.
DC-X had scaled down flying modell as well.And it lead to its canellation : ( .

My bad ( and yours) it was 140000 kg.
Payload to
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(90 nmi (170 km), 30° inclination) 310,000 lb (140,000 kg)
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Quickie

Colonel
DC-X had scaled down flying modell as well.And it lead to its canellation : ( .

My bad ( and yours) it was 140000 kg.
Payload to
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(90 nmi (170 km), 30° inclination) 310,000 lb (140,000 kg)
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The DC-X is entirely rocket engine based, and itself relied entirely on rocket engine power (of the earlier rocket stages) to launch it into orbit. i.e. it's an entirely different kind of development.
 

Anlsvrthng

Captain
Registered Member
The DC-X is entirely rocket engine based, and itself relied entirely on rocket engine power (of the earlier rocket stages) to launch it into orbit. i.e. it's an entirely different kind of development.
Say that the DC-x was a mangitude cheaper to develop than a twin, rocket/ramjet/scramjet/turbine laucnh system.
Of course it doesn't means that it is not technologicaly infeasible, but rather than there is no maker demand for this volume launch services.
 
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