Author Topic: China to have new rockets  (Read 524081 times)

Online FutureSpaceTourist

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Re: China to have new rockets
« Reply #820 on: 11/04/2023 05:49 am »
https://twitter.com/cnspaceflight/status/1720689271366160861

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🔥 CASIC ExPace completed a 200s hot fire test of their reusable 70t-thrust MingFeng-2 metholox engine. The previously tested MingFeng-1 is smaller and provides 100kN thrust.
mp.weixin.qq.com/s/VsjyLbhV_rhX…

Online FutureSpaceTourist

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Re: China to have new rockets
« Reply #821 on: 11/05/2023 07:22 am »

Online FutureSpaceTourist

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Re: China to have new rockets
« Reply #822 on: 11/18/2023 07:58 am »
https://twitter.com/dongfanghour/status/1725795077866303940

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Chinese state-owned launch company China Rocket (中国火箭) will apparently launch a "new medium-lift launch vehicle with a stronger payload capacity" in 2024.
This is likely the Jielong-4 rocket, using the 3.5m diameter SP150 solid-fueled engines I believe (picture below 👇)

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source: mp.weixin.qq.com/s/6bCLbXvRwHEF…

https://twitter.com/dongfanghour/status/1725797514652028976

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Another interesting bit from the WeChat post is that China Rocket has at least 3 rideshare missions planned for 2024 (Feb, May, Nov), with some payload capacity available on each.

Online FutureSpaceTourist

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Re: China to have new rockets
« Reply #823 on: 11/22/2023 07:37 am »
https://twitter.com/cnsawatcher/status/1727235775283044436

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🚀 CASC's new 2-stage orbital launch vehicle: 150t, 180km LEO orbit w/ horizontal takeoff. 1st stage powered by DRBCC, 2nd stage by LOX/methane. Stages separate at 35km altitude. Weight reduces to 46.217t at stage separation for efficient payload delivery. buff.ly/3QTjEx4

Online FutureSpaceTourist

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Re: China to have new rockets
« Reply #824 on: 11/27/2023 05:17 am »

Online FutureSpaceTourist

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Re: China to have new rockets
« Reply #825 on: 12/02/2023 07:24 am »

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Re: China to have new rockets
« Reply #826 on: 12/27/2023 07:45 am »
https://twitter.com/raz_liu/status/1739924103606444505

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SEPOCH/箭元科技 has completed the third round of funding of 200 million RMB. They plan to do a vertical launch and splashdown test of its XZY-1 rocket first stage next year.

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Re: China to have new rockets
« Reply #827 on: 12/27/2023 03:34 pm »
twitter.com/cnspaceflight/status/1740043366640079233

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CAS-SPACE completed a cold flow test of Kinetica-2 stage prototype, in preparation for the following static fire.
Kinetica-2 is a CBC rocket with 751t thrust & 628t liftoff mass. 5.6t/700km SSO, 7.8t/500km SSO, 12t/LEO. No more details have been disclosed

https://twitter.com/cnspaceflight/status/1740045388688838779

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CAS-SPACE is known developing a 30t thrust kerolox engine, so 7 or 9 engines in each core? Reusability is not mentioned in CAS-SPACE's article. How could this compete in the future market?

👇 Photos of recent wind tunnel experiments and mechanical tests

Online FutureSpaceTourist

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Re: China to have new rockets
« Reply #828 on: 01/07/2024 06:06 am »
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🔥. RocketPI tests fire XiangNong (香农,Shannon) 6t-thrust metholox engine with electric pump for the first time. 5 engines will be installed on the first stage of DW-1 rocket.

https://twitter.com/cnspaceflight/status/1743855914585927716

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DW-1 measures 24m tall and 1.4m wide and weighs 21.4t with 300kg capacity to LEO. The maiden launch is targeted for 2025

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Re: China to have new rockets
« Reply #829 on: 02/09/2024 08:34 am »


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The "Longyun" liquid oxygen methane engine is the first multi-start, reusable, high-thrust liquid rocket engine launched by JiuZhou YunJian. It can be used as the main thrust engine for medium and large liquid carrier rockets. The sea level thrust-to-weight ratio of the "Longyun" engine is greater than 80, with a sea level thrust of 70 tons and a vacuum thrust of 80 tons. The thrust can be adjusted from 32% to 106%. It can be used in parallel with 5 engines for a 3.35m diameter rocket, 7 engines for a 3.8m diameter rocket, and 9 engines for...full text.

Source: https://m.weibo.cn/status/NFFixcyPk

Offline Darkseraph

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Re: China to have new rockets
« Reply #830 on: 02/09/2024 03:33 pm »


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The "Longyun" liquid oxygen methane engine is the first multi-start, reusable, high-thrust liquid rocket engine launched by JiuZhou YunJian. It can be used as the main thrust engine for medium and large liquid carrier rockets. The sea level thrust-to-weight ratio of the "Longyun" engine is greater than 80, with a sea level thrust of 70 tons and a vacuum thrust of 80 tons. The thrust can be adjusted from 32% to 106%. It can be used in parallel with 5 engines for a 3.35m diameter rocket, 7 engines for a 3.8m diameter rocket, and 9 engines for...full text.

Source: https://m.weibo.cn/status/NFFixcyPk

I have to give them credit on their great graphical breakdown there. Most companies give very vague explanations of how their engines will work or static drawings that aren't all that inspiring, but that was fantastic.
"For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled." R.P.Feynman

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Re: China to have new rockets
« Reply #831 on: 02/13/2024 06:57 am »

Offline luhai167

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Re: China to have new rockets
« Reply #832 on: 02/26/2024 07:43 am »
Looks like the new SAST rocket is given the name of Long March 12 according the recently published Bluebook.

3.8m diameter, 4.2m faring

4 YF-100K first stage
2 YF-115 second stage

10+ ton LEO
6+ tom SSO

Plans to launch sometime later in 2024.



Offline TheKutKu

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Re: China to have new rockets
« Reply #833 on: 02/26/2024 06:16 pm »
Looks like the new SAST rocket is given the name of Long March 12 according the recently published Bluebook.

3.8m diameter, 4.2m faring

4 YF-100K first stage
2 YF-115 second stage

10+ ton LEO
6+ tom SSO

Plans to launch sometime later in 2024.

My tentative drawing of Long March 12 based on the pictures of models of it that recently surfaced, as well as older renders. Certainly not representative.

The fairings shown in the more recents models and renders are noticeably larger than the 4.2m one shown in 2020
https://m.weibo.cn/status/5005769038630944
This source claims the CZ-12 will have 4.2m and 5.2m fairings
« Last Edit: 02/26/2024 06:35 pm by TheKutKu »

Offline KVP424

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Re: China to have new rockets
« Reply #834 on: 02/26/2024 11:18 pm »
Quote
🔥. RocketPI tests fire XiangNong (香农,Shannon) 6t-thrust metholox engine with electric pump for the first time. 5 engines will be installed on the first stage of DW-1 rocket.

https://twitter.com/cnspaceflight/status/1743855914585927716

Quote
DW-1 measures 24m tall and 1.4m wide and weighs 21.4t with 300kg capacity to LEO. The maiden launch is targeted for 2025


Is this engine using electric pump feed cycle like RocketLab’s Rutherford engine?

Offline edkyle99

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Re: China to have new rockets
« Reply #835 on: 02/28/2024 03:14 am »
I count about 22 different launch vehicles flown by China during the past couple of years, with more new types on the way.  The US, by comparison, had 9 different launch vehicles fly last year.  Three of those have since been discontinued and a fourth is about to be retired.  Why does China have so many?  It would not seen cost efficient.

 - Ed Kyle
« Last Edit: 02/28/2024 03:16 am by edkyle99 »

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Re: China to have new rockets
« Reply #836 on: 02/28/2024 04:22 am »
I count about 22 different launch vehicles flown by China during the past couple of years, with more new types on the way.  The US, by comparison, had 9 different launch vehicles fly last year.  Three of those have since been discontinued and a fourth is about to be retired.  Why does China have so many?  It would not seen cost efficient.

 - Ed Kyle
This is a simple market law. In China's rocket market, there is no winner-take-all situation like the Falcon 9. The China Star Network project is the largest visible market for these rocket companies in the future, so there will inevitably be a large number of rockets designed to compete. Of course, there are also a group of old rockets that have not yet retired, which is just a simple market law.

Offline Steven Pietrobon

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Re: China to have new rockets
« Reply #837 on: 02/28/2024 05:48 am »
I think its just the way Chinese launch vehicles have developed. Just look at all the rockets developed from the DF-5 ICBM! * indicates active vehicles, of which there are nine.

FB-1
CZ-2A
CZ-2C*
CZ-2D*
CZ-2E
CZ-2F
CZ-2F/G*
CZ-2F/T*
CZ-3
CZ-3A*
CZ-3B
CZ-3B/E*
CZ-3C
CZ-3C/E*
CZ-4A
CZ-4B*
CZ-4C*

When the Chinese came to develop their new vehicles, they developed new families to replace these.

CZ-5
CZ-5B
CZ-6
CZ-6A
CZ-6C (in development)
CZ-7
CZ-7A
CZ-8

As China is in a transition period from the old to the new vehicles that means there are currently 16 (soon to be 17) vehicles in the CZ family being used! As the old storable family is retired, that should reduce to eight vehicles and then increase to 10 when the super heavy CZ-9 and CZ-10 are introduced. A reusable single stick version of CZ-10 could might be used in future to replace CZ-5 to CZ-8.

Then we get into all the different small launch vehicles, with new companies being allowed to compete for this market.
« Last Edit: 02/28/2024 06:06 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline mikezang

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Re: China to have new rockets
« Reply #838 on: 02/28/2024 10:45 am »
I think its just the way Chinese launch vehicles have developed. Just look at all the rockets developed from the DF-5 ICBM! * indicates active vehicles, of which there are nine.

FB-1
CZ-2A
CZ-2C*
CZ-2D*
CZ-2E
CZ-2F
CZ-2F/G*
CZ-2F/T*
CZ-3
CZ-3A*
CZ-3B
CZ-3B/E*
CZ-3C
CZ-3C/E*
CZ-4A
CZ-4B*
CZ-4C*

When the Chinese came to develop their new vehicles, they developed new families to replace these.

CZ-5
CZ-5B
CZ-6
CZ-6A
CZ-6C (in development)
CZ-7
CZ-7A
CZ-8

As China is in a transition period from the old to the new vehicles that means there are currently 16 (soon to be 17) vehicles in the CZ family being used! As the old storable family is retired, that should reduce to eight vehicles and then increase to 10 when the super heavy CZ-9 and CZ-10 are introduced. A reusable single stick version of CZ-10 could might be used in future to replace CZ-5 to CZ-8.

Then we get into all the different small launch vehicles, with new companies being allowed to compete for this market.
You will see CZ-8A what I guess for 长征八号改 and CZ-12 this year, then you will see CZ-9 and CZ-10, maybe next year.

 

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