China Ballistic Missiles and Nuclear Arms Thread

Status
Not open for further replies.

Kalec

Junior Member
Registered Member

Kalec

Junior Member
Registered Member
Please, Log in or Register to view URLs content!

固体发动机单月和年度装药量再创历史纪录,重大型号飞行试验任务全部圆满成功

面对高强密度科研生产任务压力和新冠疫情带来的巨大挑战,全院干部职工坚定履行强军首责,顶住压力、深挖潜力、形成合力,深化精细化高效科研生产体系建设,巩固压力测试2.0工作成果,持续推动制造工艺向定量化、自动化、信息化、智能化转型升级,数字四院建设扎实推进,三年质量能力提升工程和手工操作工序质量薄弱环节治理三年行动计划圆满收官,高强密度科研生产机制平稳有效运行,固体火箭发动机科研生产综合保障能力不断迈上新台阶,大型复合材料壳体及喷管制造、大型发动机金属壳体制造、固体发动机单月装药量和年度总装药量、固体发动机地面试验量等均创历史新纪录。圆满完成了以重大装备工程、载人航天工程、空间站建设工程等为代表的百余种各型战略战术、宇航运载及商业航天发动机的研制、批产和交付任务,重大型号飞行试验任务全部圆满成功。
Solid engine monthly and annual propellant loading volume set another historical record, major model flight test tasks all successful

The manufacturing of large composite shells and nozzles, the manufacturing of metal shells for large engines, the single monthly and total annual propellant loading volume of solid engines, and the ground test of solid engines have all set new records. We have successfully completed the development, batch production and delivery of more than 100 types of strategic and tactical, aerospace and commercial space engines for major equipment projects (note: military purpose), manned space projects, space station construction projects, etc. All major type flight test missions have been successfully completed.

北京固体动力技术联合创新中心挂牌,多项关键技术攻关、应用基础研究和前沿技术探索取得重大突破

7月27日,四院“北京固体动力技术联合创新中心”揭牌仪式在京举行。创立北京创新中心是院党委立足“十四五”这一关键历史节点做出的重要决策,是四院秉持“技术立院”发展理念,坚持“守正创新”发展路线的集中体现,标志四院技术创新体系持续完善。两个国家级重点实验室运行有序,全年新增3个省级国防科技创新中心、3个联合创新中心;多项关键技术攻关与演示验证成绩突出,基础研究和前沿技术探索取得重大进展,重大项目论证与立项、竞标工作进展顺利,新立创新项目经费超30亿元;知识产权创造、保护、管理与科技成果申报和转化能力显著提升,连续四年获得集团十大技术突破,获得省部级以上科技奖励17项,再创历史新高。12月9日,某新型发动机主动引射高模试验圆满成功,至此,四院新一代固体发动机系列地面试验全部完成,标志着四院在新型纤维壳体、新型高能推进剂、新型高冲质比喷管、低密度绝热材料、低烧蚀喉衬材料等核心技术上取得重大突破,发动机综合性能水平显著提升。
Beijing Solid Power Technology Joint Innovation Center was inaugurated, and a number of key technologies, applied basic research and frontier technology exploration have made significant breakthroughs

A number of key technologies have been demonstrated with outstanding achievements, significant progress has been made in basic research and frontier technology exploration, major project demonstration and project establishment, bidding work is progressing smoothly, and the funding for new innovation projects exceeds 3 billion yuan.

On December 9, the active ejection simulated altitude test of a new engine was successfully completed, which marked the completion of a series of ground tests for a new generation of solid engine, marking the completion of the new fiber casing, new high energy propellant, new high impulse ratio nozzle, low density adiabatic materials, low ablative throat lining materials and other core technologies have made significant breakthroughs, and the comprehensive performance level of the engine has been significantly improved.

Tl;dr All ground tests of new generation of solid engines have been completed. Some of new-gen solid missiles/rockets may have been tested this year, no further detail is provided.
 

Kalec

Junior Member
Registered Member
New engine for DF-5C get an official update with very specific details!

YF-581:

100t class staged hypergolic engine, thrust improves by 60% and specific impulse by 14%

Compared with commonly-used YF-20B here:
YF-20BYF-581RD-273
Thrust (Sea Level)731.5 kN1,170.4 kN1,130 kN
Specific Impulse (Sea Level)259s295.3s296s

Unsurprisingly, it confirmed the rumors I heard and my own calculation back then, it is basically a slightly-better version of RD-273.

Please, Log in or Register to view URLs content!

640.jpg
 

gelgoog

Lieutenant General
Registered Member
Unsurprisingly, it confirmed the rumors I heard and my own calculation back then, it is basically a slightly-better version of RD-273.
Not surprising. Even North Korea has managed to duplicate this engine. I doubt China did not get the relevant technology when Ukraine was selling it to everyone after the Soviet collapse. We know the initial staged combustion LOX/Kerosene Chinese engines were based on Ukrainian engine designs. They were also in contact with their industry. Ukraine was where R-36 rockets were made. Even if the engines were designed in Russia the fact is they were built there. This is a major boost in performance for the large liquid rockets.
Russia's latest engine for the Sarmat supposedly has higher performance. Probably a higher thrust level and Isp. The Russians claim lower time to ascent and longer range. But the numbers still seem to be classified.

If China additionally uses new materials and design techniques for the rocket itself, the mass fraction might be reduced quite a lot, and rocket performance in terms of throw weight and range might go way up. For example they can use composite tanks made of carbon fiber to store the fuel or use lightweight aluminium-lithium construction.
 
Last edited:

BoeingEngineer

Junior Member
Registered Member
.
.

Please, Log in or Register to view URLs content!


They are called
Please, Log in or Register to view URLs content!
because they produce more nuclear fuel than they consume. According to Chinese authorities, the ones on Changbiao are civilian power reactors, designed to generate 600 megawatts of electricity each, which amounts to a little more than 1 percent of the
Please, Log in or Register to view URLs content!
. But each reactor could also yield up to 200 kilograms of weapons-grade plutonium each year, enough to make One hundred 450 KT nuclear warheads—which is making nuclear-arms-control experts in Western countries nervous.

Please, Log in or Register to view URLs content!
 

ACuriousPLAFan

Brigadier
Registered Member
But each reactor could also yield up to 200 kilograms of weapons-grade plutonium each year, enough to make One hundred 450 KT nuclear warheads—which is making nuclear-arms-control experts in Western countries nervous.
So what?

As long as China does not have equal number of nuclear warheads to the combined West, then they should just suck it up and acknowledge China has every right to have the similar scale of nuclear firepower as the West.

今日的列强依旧是百年前无耻霸道的列强,但现今的中国可绝非是百年前的大清。

Therefore, the West have two choices。 Either they voluntarily reduce their nuclear stockpile to be on the same level as China's; or they should accept China's effort in expanding her nuclear stockpile to be on the same level as them.

Furthermore, if they still don't understand, just ask them - Which country sat directly face-to-face with the US in Anchorage two years ago?
 
Status
Not open for further replies.
Top