China's Space Program News Thread


by78

Lieutenant General
The report says 10 second static firing but the company video actually says two firings of 60 seconds each, one after the other?

I assume you are talking about this
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. It actually says the 10-second test firing was completed at an earlier date. The latest test indeed consisted of two firings, each 60 seconds in duration.
 

Richard Santos

Senior Member
Registered Member
Apparently the shape of the new space capsule was based on another project decades ago. Debunks the people calling it a crew Dragon capsule copy.

The shape of the crew capsule from decades ago in turn very closely resemble the shape of the first photo reconnaissance film recovery capsules that china launched in the early 1970s, which in turn appears to be closely based on the photo reconnaissance film recovery capsules of the Carona series satellites the US launched a decade before that.

The truth there is no glory in denying what works, and no shame in using what works.
 

Cloud_Nine_

New Member
Registered Member
285D5B68082B3C7B066F04C76AE6A9D0.jpg
【220吨级补燃循环氢氧发动机完成首台工程样机生产】据北京航天动力研究所消息:近日,重型运载火箭220吨级补燃循环氢氧发动机完成首台工程样机生产,标志着该发动机关深阶段研制工作圆满完成。220吨级补燃循环氢氧发动机是我国重型运载火箭的芯二级发动机,性能指标达到国际先进水平,能更好地满足我国未来运载火箭和重大航天任务的动力需求,是航天强国的重要标志之一。
在关深阶段研制过程中,研制团队边论证、边设计、边生产、边验证,实现了四大技术跨越,即“一年完成论证设计、两年完成关键组件生产、三年实现预燃室等组件试验、四年完成预燃室-氢/氧涡轮泵联动分系统试验”,初步突破了补燃循环起动关机过程控制、大流量高压预燃室、先进制造技术等9大关键技术。发动机推力、真空比冲、推重比等技术指标达到国际先进水平,形成多项核心自主知识产权,实现了对设计技术、试验方法等的全方位创新,并首次实现了氢氧发动机全数字化研制,为发动机后续工程研制奠定了坚实的基础。目前,发动机各项研制工作正有序推进,已完成发动机试车台选址、建台方案论证设计,今年将完成半系统试验和整机试验验证。220吨级补燃循环氢氧发动机性能和技术指标刷新了我国氢氧发动机的纪录,其研制能够填补我国氢氧发动机型谱和技术空白,并对诸多基础科学和工业领域有巨大的牵引带动作用。

First engineering prototype of the 220ton YF-90 staged-combustion cycle LH2/LOX engine. This will be the second stage engine for the Long March 9 (2011).
 

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