China's Space Program Thread II

by78

General
High-resolution images from the successful launch of Yaogan 33-04 remote-sensing satellite using a Long March 4C rocket at the Jiuquan Satellite Launch Center, and the satellite successfully entered the predetermined orbit. This was the 489th flight of the Long March series.

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by78

General
Powered exoskeleton developed by CASIC specifically for spacecraft search and recovery teams. It's designed to operate in harsh environments and over difficult terrain. It features two power assist modules, one each for upper and lower body. The onboard controller continuously monitors wearer's movement and gait and uses sophisticated algorithms to adjust the speed as well as the amount of power output in real time.

Brief specs:
- Load capacity: 50kg
- Reduces load on human operator by 60%, equivalent to 30% of human body's energy consumption (?).
- Operating temperature: -40 to +70°C
- Operating humidity: up to 98%
- Can monitor wearer's body movement with >99.9% accuracy
- Capable of continuously operating for four hours when provided with spare batteries
- Provides for a large range of motion.
- Light weight, modular, and easy to maintain.


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Michael90

Junior Member
Registered Member
Short and simplified answer, liquid rocket engine is much more difficult to develop than solid engine. I even suspect that many Chinese "private" companies just source their solid boosters from missile producers which PLA is happy to spread out their cost.

It is unfair to compare SpaceX (or any US space company) with Chinese "private" launchers. The two countries work in totally different manners. In US, NASA would found private companies in conceptual and engineering work using state budget. Regardless who win the final mission, the private companies retain the owership of IP and experience of the state funded work. For example, SpaceX got the first crewed Artemis mission, that money is to finance partially Starship development. Even if SpaceX don't get any further mission, they are paid for research and can keep using that knowledge in anything they want. In China, "private" launchers don't get this money nor IP because they are not providing any work to state program. They have to pay for the knowledge through doing whatever job they can get which is pretty small compared to US counterparts.
Hmmm...means the US has a better system in this sector then i suppose.
Why doesn't China follow this system?
 

taxiya

Brigadier
Registered Member
Hmmm...means the US has a better system in this sector then i suppose.
Why doesn't China follow this system?
You call a country who set foot on the moon many decades ago only to set foot one year ahead (on paper) of China (2028 vs 2029) in the next race having a better system? You are like saying a cripple runs faster than Carl Lewis. Your IQ amaze me.

You call a system worth to follow, in which private companies can extort rediculous prices (the expensive toilet on Ford CVN) from the state and the taxpayer?

No, keep your "excellent" system to yourself, or go away to fool a pig.
 
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by78

General
An article on the development progress of the reusable 130-ton YF-100N engine intended for the first stage of Long March 10. Basically, the project is coming along along, with various components and technologies having been repeatedly tested, as well as hot test runs carried out, all of which demonstrated the feasibility of the YF-100N design and verified its mission profile.

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