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Zhuque-3 Y2 landmark recovery test marks China’s dual-track reusable rocket development, aerospace experts say_我的网站

来源: 新华社
02:53:23

十二怒汉

Zhuque-3 Y2 landmark recovery test marks China’s dual-track reusable rocket development, aerospace experts say_我的网站

我在故宫修文物

A |     

本周二,阿根廷主流媒体报道称米莱政府准备发行新面值货币,7.7亿张10000面值(约合11美元)的比索正式开始流通;相比于之前最高面值为2000比索的货币,直接上调了5倍之多,且年底还要发行20000面额的比索。至于为什么要超发大面额的货币,消息人士的解释是“有利于民众购买的便利”,也就是说买东西不用携带如此多的货币了。

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Photos: Courtesy of Landspace
    Photos: Courtesy of Landspace
    

A rocket that once would have been discarded after completing its mission has now taken a different path - returning from the edge of space back to Earth. In the early hours on Wednesday, the Zhuque-3 Y2 reusable launch vehicle lifted off for a flight test, carrying not only a satellite payload but also a major test of China's emerging reusable rocket capabilities. After completing its orbital mission, the rocket's first stage attempted a controlled return and recovery, with its developers Beijing-based private firm LandSpace describing the mission as a key transition from technology verification toward engineering application for China's commercial aerospace industry.
About 137 seconds after liftoff, the rocket’s first and second stages separated. The second stage continued its flight and successfully placed the Honghu-03 satellite, independently developed by Hongqing Technology, into its designated orbit. And at around 7:43 am, the rocket’s first stage successfully made a soft landing as planned at the Zhuque-3 landing site in Minqin county, Northwest China’s Gansu Province, marking the successful completion of the flight test mission.
This mission marked China's first-ever recovery of a launch vehicle's first stage using landing legs, as well as the country's first land-based recovery of the first stage of an orbital-class launch vehicle, the developer highlighted.
The achievement came shortly after China's Long March-10B reusable rocket successfully completed its maiden flight and a sea-based recovery test on July 10, marking a wave of breakthroughs in reusable launch technology. The parallel progress of state-owned and private aerospace players through different technical approaches is creating a dual-track development landscape for China's future low-cost and high-frequency space transportation, some aerospace experts told the Global Times.
    
Photos: Courtesy of Landspace
    Photos: Courtesy of LandspaceDesigned to fly again

Unlike traditional expendable rockets, which are discarded after a single mission, reusable launch vehicles are designed around an entirely different concept: a rocket should not only complete a launch, but also return safely and be prepared for future missions.
According to LandSpace, for conventional expendable liquid launch vehicles, the rocket itself represents the majority of launch costs, while fuel expenses generally account for only 1-3 percent. The first stage typically makes up about 70 percent of the total rocket cost. As a result, repeated reuse of rockets - particularly the first stage - can significantly lower launch costs by amortizing the cost of the vehicle over multiple missions. For partially reusable rockets that reuse the first stage while discarding the second stage, the cost advantage becomes increasingly evident as the number of reuse cycles grows.
The Zhuque-3 is a reusable liquid oxygen-methane launch vehicle independently developed by Beijing-based private aerospace firm LandSpace for future large satellite constellation deployment missions, according to the company's statement.
The rocket adopts a two-stage configuration, with a diameter of 4.5 meters, a total length of 66.1 meters and a liftoff mass of about 570 tons. Its first stage is equipped with nine Tianque-12A liquid oxygen-methane engines, as well as recovery systems including grid fins, attitude control systems and landing legs, enabling autonomous return and soft landing after orbital missions, LandSpace said.  
The Y2 mission was conducted on the basis of experience accumulated from the previous flight test, with improvements focused on recovery reliability, flight control and engine performance.
LandSpace said it optimized the first-stage landing propulsion scheme by reducing the number of engines used during landing ignition, simplifying system design and improving reliability during the recovery phase. The company also added an autonomous safety control function capable of predicting landing points based on flight conditions and making corresponding safety adjustments.  
The mission also further verified key technologies including the use of stainless-steel rocket structures, liquid oxygen-methane propulsion and landing-leg recovery systems.
According to LandSpace, stainless steel provides advantages in manufacturing cost, processing efficiency, high- and low-temperature performance and post-recovery maintenance, making it suitable for reusable rocket development.  

Photos: Courtesy of Landspace
    Photos: Courtesy of LandspaceMore than a single rocket's return

The significance of Zhuque-3 Y2 extends beyond one flight test, as it reflects China's broader effort to develop reusable launch systems through multiple technological routes, according to Chinese experts.
Kang Guohua, a senior member of the Chinese Society of Astronautics and a professor of aerospace engineering at Nanjing University of Aeronautics and Astronautics, told the Global Times that China has become the second country after the US to develop orbital-class rocket recovery capabilities.
The US currently leads reusable rocket development, with SpaceX and Blue Origin advancing different recovery technologies. China, meanwhile, has seen both state-owned aerospace programs and private companies explore different technical pathways, creating a diversified development pattern, Kang said.  
According to Kang, the parallel development of different approaches demonstrates the advantages of combining national strategic capabilities with market-driven innovation.  
Pang Zhihao, a prominent Chinese space exploration expert and retired researcher from the China Academy of Spacecraft Technology, told the Global Times that the successful recovery of Zhuque-3 would carry special significance for China's private aerospace sector.
A landing-leg recovery approach would mean that private aerospace companies have completed the full process of developing a large-capacity reusable rocket system, validating key technologies including stainless-steel structures, multi-engine propulsion and recovery systems, Pang said.  
More to expect 
LandSpace said the first stage represents a significant share of the total cost of a liquid launch vehicle. Through repeated reuse, the cost of each launch can be gradually reduced, while production cycles can be shortened and launch frequency increased.  
Such capabilities are becoming increasingly important as countries and companies accelerate the deployment of large low Earth orbit satellite constellations, it added.
The Zhuque-3 has demonstrated the ability to support various commercial missions, including satellite constellation deployment, single satellite launches and rideshare missions, according to LandSpace.
The company said the rocket has achieved a maximum orbital payload capacity of 14.2 tons in expendable mode, while its reusable configuration is designed to support future constellation deployment needs.  
The Y2 mission also carried the Honghu-03 satellite developed by Hongqing Technology, combining reusable technology verification with a commercial launch application scenario. LandSpace said the mission verified the full chain of "design, manufacturing, testing, launch and recovery," laying the foundation for future commercial operations.  
The Zhuque-3 Y2 test comes as China's aerospace industry accelerates efforts to develop reusable launch vehicles.
According to Chinese experts, multiple companies are now exploring different recovery technologies, including vertical landing and other innovative approaches, reflecting the rapid growth of China's commercial aerospace ecosystem.  
Reusable liquid launch vehicle, Pallas-1 will begin its mission from Galactic Energy's independently built facility at the Dongfeng Commercial Aerospace Innovation Test Zone in northwestern China, where the company will soon complete testing, propellant filling and launch preparation operations, according to its developer Galactic Energy on Thursday.
Orienspace's Gravity-2 reusable large liquid launch vehicle is undergoing final ground testing ahead of its maiden flight, which is scheduled in the fourth quarter of 2026. The rocket is designed with a low Earth orbit payload capacity of 21.5 tons.
Space Pioneer is advancing verification and joint testing of its Yuanxingzhe-1 (YXZ-1) rocket, while i-Space's Hyperbola-3 reusable rocket has completed full-cycle ground verification of offshore recovery and landing technologies and is expected to conduct its maiden flight around the end of 2026.
Meanwhile, CAS Space's reusable Lihong-2 vehicle is being developed as a platform for verifying key recovery and reuse technologies, as well as conducting microgravity experiments. The vehicle is scheduled to complete its maiden flight and 100-kilometer-class recovery verification test in 2026.
Pang said reusable rocket technology could help lower launch costs, increase mission frequency and provide stronger support for emerging sectors such as satellite internet, space-based information networks and future large-scale space applications.  
For China's private space sector, the Zhuque-3 Y2 mission represents a transition from technology verification toward engineering application, according to LandSpace. The company said it aims to further build a "launch-recovery-inspection-reuse" cycle to support future high-frequency and low-cost commercial operations. 
Experts said reusable rocket technology could help reduce launch costs, increase launch frequency and provide stronger support for emerging sectors such as satellite internet and large-scale space applications.  
The future challenge for China's reusable rocket developers will be turning successful flight tests into repeatable commercial operations, as the country advances toward a new era of high-frequency space transportation, they noted.
Photos: Courtesy of Landspace
    Photos: Courtesy of Landspace

。然而事实上很多阿根廷媒体猜测,此举是为了应对货币贬值和接下来有可能进行的更多贬值,顺便为国库增加财富和收入;从米莱上台后,比索的贬值达到54%,让原本就要携带成捆钱币花销的阿根廷人苦不堪言。
但一方面是“穷疯了”的阿根廷人,另一方面却是“小富”的政府。4月下旬米莱通过电视发表讲话,宣布2024年一季度实现财政盈余,创下2750亿比索(约合3.2亿美元)的收入。他称这些钱是“自由经济”政策下的盈利,阿根廷终于走入了新时代。但马萨领导的反对党却揭露米莱实则是在收割阿根廷人,所谓的盈利不过是用贬值货币压缩出口关税利润,加上超低的价格出卖国家能源、矿产和企业给外国公司,底层的民众失业率大涨。
果然在5月9日,阿根廷又爆发了蔓延全国的示威行动。全国数十万名工人自发停止工作、拒绝到岗和到街头拉标语来抗议米莱政府“倒行逆施”的政策,认为其让阿根廷陷入长期失业和贫困的危机。这些工人表示他们涨薪的幅度很低,但物价“每天都在变”,政府承诺的补贴、福利和减税更是一样都没有。更有甚者薪资甚至顾不上生活成本,或是被迫裁员,他们必须为自己争取权利。

C | 这些人中也有不少人一开始是支持米莱上台的,但他们现在显然“后悔”了。

分析人士表示,阿根廷总统兴高采烈地宣布“创收”,底层民众却表示“过不下去”,上台半年时间闹了两次全国大罢工,如此上下分离是有原因的。其一是政府3个月创收的3.5亿美元,米莱虽然保证会“花到每个民众身上”,但他们优先使还要用货币还债,剩下的分摊到4600万阿根廷人身上的也微不足道。其二是米莱的“收割货币”政策严重扰乱了基层市场,今年3月阿根廷制造业和建筑业出现了自新冠疫情大流行以来的最大跌幅,偏偏这两个行业也是底层民众生活的命脉产业,失去工作者沦为赤贫。其三也是根本的一点:阿根廷历史上没有进行过这种大幅度的“休克疗法”,经济执行有很多规则性问题难以寻找经验和前例。

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值得一提的还有,在全国大罢工的同一时期,阿根廷强大的工会组织正抵制米莱的改革努力,这一改革将降低公司的遣散费用,并进一步加强他的紧缩计划。

E | 对此有评论称:“现在开弓没有回头箭,政府除非把国家‘做强或者做烂’,否则没有其他选项的。

F | 马斯克等国外资本家们现在非常支持米莱推行下去,受益者显而易见。

G | ”

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Published on:09:54:02


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