China's Space Program Thread II

[gelgoog]

I am asking about what China is doing to catchup or advancing in terms of reusable Rocket Technology, Heavy Lift Rocket with Reusability similar to Starship or distributed satellite based internet similar to Starlink.

You just have to read the thread. China is working on the CZ-10 rocket which is basically a competitor to Falcon Heavy. It will use the same YF-100 engines and machine tooling that is used to make the center core of the CZ-5 rocket.

China is also making its own communications constellation to compete with Starlink.

Please, Log in or Register to view URLs content!

As for heavy launchers they have a program for that, CZ-9, and they have tested the YF-130 engine with 5 MN thrust. Compare that with the 2.26 MN Raptor 2 engine. It is twice as powerful. Which means you can make a similar rocket with like half the engines.

 

[Blitzo]

I don't get it. You have a thread called "Chinas Space Program". I am asking about what China is doing to catchup or advancing in terms of reusable Rocket Technology, Heavy Lift Rocket with Reusability similar to Starship or distributed satellite based internet similar to Starlink. This question is about China's Space program, not about Nasa's Space Program, and you are suggesting I should ask this in the forum about NASA and World Space Exploration? This is just absurd and frustrating.

It seems you got mad that I said how "behind" China is when compared to SpaceX and then instead of maybe talking about what China is doing in order to reduce the gap, you just try to portray me as putting the question in the wrong thread.

I am also a Pro-China person and do not have delusion about some kind of US or Western inherent Superiority. But I don't have the delusion also that China is already more advanced than the west and no longer has to catchup. We need to be clear eyed about the reality of the world. Saying China is behind SpaceX is a fact. No harm in saying it and talking about what China is doing to catchup or what else China might do in the future to speed up progress.

If you genuinely want to know the information, you can trawl through this thread, which has discussed the resuable rockets being developed by state and commercial companies.

But I hope you realize people are not going to write up convenient summaries in a single post for your question. That kind of effort post isn't done by people on a whim.

 

[taxiya]

I don't get it. You have a thread called "Chinas Space Program". I am asking about what China is doing to catchup or advancing in terms of reusable Rocket Technology, Heavy Lift Rocket with Reusability similar to Starship or distributed satellite based internet similar to Starlink. This question is about China's Space program, not about Nasa's Space Program, and you are suggesting I should ask this in the forum about NASA and World Space Exploration? This is just absurd and frustrating.

That is not what I replied to.

Here is what I replied to:

how behind is China's space technology compared to SpaceX?

They are not the same question. Instead of acknowledging you asked a bad question, you try to pedal away from what you actually did.

Here is what is meant for you to get "I don't get it."
When your question was pointed out being a bad one by other member (#2,988), you defended yourself in #2,989 by saying your original question was very valid, then you moved your goal post by asking a more specific and well-shaped question. Then when pointed out by myself for the second time, you repeated the same behaviour. That was very sneaky behaviour that got all of us here.

Here is what an honest and well-intended person would have done in your position, "I apologize for the bad shaped post, let me be specific and rephrase my question ......".

 

[Hitomi]

This thread basically touches on SpaceX every other week by other members with more than sufficient breakdowns, analysis and arguments, no need to specifically request for it.

In fact I might even suspect you of intentionally derailing the thread.

 

[AssassinsMace]

I think it was on John Oliver's show a couple weeks back where he spent the entirety on Elon Musk where he pointed out that he doesn't really invent anything. He takes other people's ideas and technology and puts it together. Just look at Hyperloop. He didn't come up with the idea. Somebody else did and he just brought attention to it.

 

[gadgetcool5]

Regarding reusable rocket technology, which is what SpaceX is known for the most, the leading Chinese companies like i-Space and Deep Blue Aerospace are currently conducting hop tests. Deep Blue Aerospace achieved a 1km hop test in 2022, whereas i-Space used the first stage of an actual potential rocket (Hyperbola-2) to reach 343m. This is comparable to the SpaceX Grasshopper, a rocket prototype which reached 325m in June 2013 and 744m in October 2013. The Falcon 9 Resuable Development Vehicle (F9R Dev) flew in April 2014 and reached 250m, and then reached 1km in May 2014.

However, at that time SpaceX was already doing controlled descents to sea from actual orbital rockets starting in April 2014, when Flight 9 of the Falcon 9 first stage landing test approached the ocean with zero spin and zero velocity, after delivering a cargo spacecraft to the ISS. This is the wild card, IMO, as I haven't heard of any Chinese companies making efforts in this area. In fact, all the resupply missions to TSS so far are Tianzhou. From this, I would conclude that Chinese companies are no less than a decade behind SpaceX. They would have to progress 2x as fast as SpaceX for the next 10 consecutive years to catch up after 10 years.

 

[gelgoog]

SpaceX weren't the first to make a rocket capable of landing back on its base.

It is just that they were the first to get it operational in flights which delivered actual satellites to orbit.

 

[Jiang ZeminFanboy]

China adds two more satellites to mega BeiDou constellation

Please, Log in or Register to view URLs content!

 

[by78]

Lightyear Exploration Technology has successfully completed a pressure test (at room temperature) of its 225m-diameter stainless steel propellant tank. Low-temperature tests and axial compression tests will follow.

According to LightYear, the company has delivered its first stainless steel propellant tank to a certain unnamed end user. I'm not sure which of the two types of tanks was delivered.

 

[antiterror13]

China adds two more satellites to mega BeiDou constellation

Please, Log in or Register to view URLs content!

great, the newest 2 have many improvements .. wondering when all BDS 2 satellites will get replaced ?