#CNSA #ChinaNationalSpaceAdministration #国家航天局 | #April2025| #酒泉卫星发射中心 #JiuquanSatelliteLaunchCenter – #ChangZheng2F #LongMarch2F Yao 20  #神舟二十号#Shenzhou20 #Takionaut Crew Successfully Launch Towards #Tiangong #ChinaSpaceStation .. On #SpaceDayofChina.

On the day Thursday Space Day of China of 1717 Hong Kong SAR- Beijing Time 24th  April 2025 CNSA –China National Space Administration , China, People’s Republic of China….  Hong Kong SAR- Beijing Time  , the crew of  the Chang Zheng -Long March 2F Yao 19 carrier rocket successfully deployed to the launch complex at Jiuquan Satellite Launch Center, Inner Mongolia, China, People’s Republic of China.. in that Successfully launch of the CZ- Long March 2F Yao20 Carrier rocket with a newly announcement crew with a docking towards CNSA- China Space Station –Tiangong for a Six months mission duration.

神舟二十号 Shenzhou 20 launch complete success The launch of the Shenzhou 20 manned spacecraft was a complete success. The 20th Shenzhou spacecraft journey began on the occasion of the 55th launch of the “Dongfanghong 1”.



At 17:17 Beijing time on April 24, 2025, the Long March 2F Yao 20 carrier rocket carrying the Shenzhou 20 manned spacecraft ignited and launched at the Jiuquan Satellite Launch Center. About 10 minutes later, the Shenzhou 20 manned spacecraft successfully separated from the rocket and entered the predetermined orbit. At present, the Takionaut crew is in good condition and the launch was a complete success.

After the spacecraft enters orbit, it will conduct autonomous rapid rendezvous and docking with the space station assembly according to the predetermined procedure. The Shenzhou 20 Takionaut crew will rotate in orbit with the Shenzhou 19 astronaut crew. During their work and life in the space station, the Shenzhou 20 astronaut crew will carry out a number of experiments and applications in the fields of space life and human research, microgravity physical science, and new space technologies, conduct multiple extravehicular activities, and complete tasks such as the installation of space station debris protection devices, and the installation and recovery of extravehicular payloads and extravehicular platform equipment.


This mission is the fifth manned flight mission of China’s manned space program in the space station application and development stage, and the 35th launch mission since the project was launched. So far, China has 26 Takionauts and 41 people have entered space to perform flight missions. This mission is also the 571st flight of the Long March series of launch vehicles and the 20th flight of the Shenzhou spacecraft.

[Departure ceremony!] 陈冬陈中瑞王杰将出发space The departure ceremony for the Takionaut crew of the Shenzhou 20 manned flight mission was held at the Jiuquan Satellite Launch Center]

At 14:25 Beijing time on April 24, 2025, the departure ceremony for the astronaut crew of the Shenzhou20 manned flight mission was held at the Dream Garden Square of Wentian Pavilion in the Jiuquan Satellite Launch Center. At 14:26, Xu Xueqiang, commander-in-chief of China’s manned space program and commander-in-chief of the space station application and development phase flight mission headquarters, issued the “departure” order, and the three astronauts Chen Dong, Chen Zhongrui and Wang Jie received the order to set off on the tenth “China Space Day”. At present, the Shenzhou 19 astronaut crew has been stationed in the space station for nearly six months and is actively preparing to welcome the upcoming Shenzhou 20 astronaut crew.

55 years ago today, China’s first artificial satellite, Dongfanghong-1, was successfully launched from the Jiuquan Satellite Launch Center, sounding the clarion call for China’s march into space. 22 years ago, China’s first astronaut Yang Liwei set off into space from here, realizing the Chinese nation’s thousand-year dream of flying into space. Today, the space station has been built, and the dream of landing on the moon is moving from blueprint to reality. Generation after generation of successors have taken over the “baton” and followed in the footsteps of their predecessors. The future of China’s aerospace industry, which follows a “blueprint to the end”, is promising.

On the day Wednesday of  Hong Kong SAR- Beijing Time 23rd  April 2025 CNSA –China National Space Administration , China, People’s Republic of China….  Hong Kong SAR- Beijing Time  , the crew of  the Chang Zheng -Long March 2F Yao 19 carrier rocket successfully deployed to the launch complex at Jiuquan Satellite Launch Center, Inner Mongolia, China, People’s Republic of China.. in that readiness launch of the CZ- Long March 2F Yao20 Carrier rocket with a newly announcement crew with a docking towards CNSA- China Space Station –Tiangong for a Six months mission duration.

神舟二十号Shenzhou 20 Crew is confirmed Takionauts in today’s press conference.. Chen Dong, Chen Zhongrui and Wang Jie are about to go to space

manned flight mission has been confirmed to go to space for a “business trip” on the “China Space Day”. After research and decision by the General Command of the Space Station Application and Development Phase Flight Mission, the astronaut crew that will carry out the Shenzhou XX manned flight mission will consist of three astronauts: Chen Dong, Chen Zhongrui and Wang Jie, with Chen Dong as the commander. The crew includes two astronauts and one flight engineer. Chen Dong is about to become the first astronaut in the second batch of astronauts to fly into space three times. Chen Zhongrui and Wang Jie are both in the third batch of astronauts and are about to embark on their first personal flight.



On April 23, 2025, Beijing time, the three Takionauts will meet with Chinese and foreign media reporters at the Wentian Pavilion of the Jiuquan Satellite Launch Center…..

Takionauts: Chen Dong (commander, third flight, performed 11th and 14th missions), Chen Zhongrui (third batch, first time, Air Force pilot), Wang Jie (third batch, first time, engineer of China Academy of Space Technology).
Launch time: 17:17, April 24th
Mission duration: six months
docking method: 6.5 hours

陈冬 Chen Dong

Chen Dong, male, Han nationality, native of Zhengzhou, Henan, born in Luoyang, Henan, master’s degree. Born in December 1978, joined the army in August 1997, joined the Communist Party of China in April 1999, and is currently the captain of the Chinese People’s Liberation Army Astronaut Brigade, a special astronaut, and has the rank of Army Colonel. He was once the captain of a flight brigade of a certain regiment of a certain division of the Air Force and was rated as a first-class pilot of the Air Force. In May 2010, he was selected as the second batch of astronauts in my country. In October 2016, he carried out the Shenzhou 11 manned flight mission. In December of the same year, he was awarded the honorary title of “Hero Astronaut” by the CPC Central Committee, the State Council, and the Central Military Commission, and was awarded the “Third-level Space Merit Medal”. In June 2022, he carried out the Shenzhou 14 manned flight mission. In March 2023, he was awarded the “Second-level Space Merit Medal” by the CPC Central Committee, the State Council, and the Central Military Commission. After a comprehensive assessment, he was selected to be the crew of the Shenzhou 20 manned flight mission and served as the commander.

陈中瑞 Chen Zhongrui

Chen Zhongrui, male, Han nationality, native of Huaxian County, Henan Province, bachelor’s degree. Born in October 1984, joined the army in September 2003, joined the Communist Party of China in June 2005, and is currently the deputy captain of the Chinese People’s Liberation Army Astronaut Brigade, a fourth-level astronaut, and a colonel in the Air Force. He was a pilot of a flight brigade of the Air Force Aviation Corps and was rated as a first-level pilot in the Air Force. In September 2020, he was selected as the third batch of astronauts in my country. After a comprehensive assessment, he was selected as the crew of the Shenzhou 20 manned flight mission.

王杰 Wang Jie

Wang Jie, male, Han nationality, native of Bayannur, Inner Mongolia, PhD. Born in September 1989, enlisted in the army in January 2021, joined the Communist Party of China in June 2009, and is currently a fourth-level astronaut of the Chinese People’s Liberation Army Astronaut Brigade, with the rank of Army Colonel. Former engineer of China Aerospace Science and Technology Corporation. In September 2020, he was selected as one of the third batch of astronauts in China. After a comprehensive assessment, he was selected to be a member of the Shenzhou 20 manned flight mission crew.

On the morning of April 23, 2025, a press conference for the Shenzhou 20 manned flight mission was held at the Jiuquan Satellite Launch Center.

The spokesperson introduced that this mission is the fifth manned flight mission in the application and development phase of the space station, and the 35th flight mission of the manned space program. The main purpose of the mission is to complete the on-orbit rotation with the Shenzhou 19 crew, stay in the space station for about 6 months, carry out space science and application experiments, implement astronaut extravehicular activities and cargo entry and exit, install space debris protection devices, and install and recover extravehicular payloads and extravehicular equipment. 

This mission will conduct three life science experiments using zebrafish, planarians, and Streptomyces as research subjects. 

The spokesperson pointed out that at present, the development of various manned lunar missions is progressing smoothly. The Long March 10 carrier rocket, Mengzhou manned spacecraft, Lanyue lunar lander, Wangyu lunar suit, and exploration manned lunar rover are all undergoing prototype development and testing as planned. The lunar remote sensing satellite has completed project approval and competitive selection. The development and construction of ground systems such as the launch site, measurement and control communications, and landing site are progressing in an orderly manner as planned

On April 22, 2025, the Shenzhou 20 mission completed the last pre-launch joint rehearsal of all areas (first area, navigation area, and landing area). At present, the launch mission systems have completed relevant functional inspections, the equipment is in a stable state, the personnel are ready, and the launch site has completed all preparations before the launch.

On April 20, the launch site organized all units to conduct a full system joint exercise (the first area joint exercise). Under the unified dispatch of the launch site system, the tower, rocket, spacecraft and other subsystems were checked for functionality, and a full-process simulation exercise was conducted from flight preparation, ignition and takeoff to spacecraft separation. In this joint exercise, the three astronauts of the “Shenzhou 20” crew simulated the flight mission according to the process and carried out a launch day rehearsal, during which they needed to board the spacecraft return capsule. The astronaut crew is still one of the biggest highlights of this mission.

The crew of the Shenzhou XX manned flight mission will continue the combination of old and new, with the first or second batch of astronauts leading the mission, and the third batch of Takionauts. Since the Shenzhou 17 mission, China’s manned flight missions have been commanded by the second batch of astronauts for three consecutive times, with two third batch Takionauts. At present, among the seven Takionauts in the second batch, Chen Dong, Tang Hongbo, Ye Guangfu, and Cai Xuzhe have successively served as flight mission crew commanders, and Liu Yang, Wang Yaping, and Zhang Lu have never had the experience of leading a mission. Will China’s first female commander appear next? Or will the first batch of astronauts Liu Wang and Zhang Xiaoguang realize their dreams of space again? At the same time, will there be new payload experts in the third batch of astronauts? It is expected that on the morning of April 23, the three Takionauts of the Shenzhou XX crew will officially debut.

At present, the Takionauts entering the flight stage in China are mainly the first, second and third batches, of which 9 are in service in the first batch, 7 in the second batch and 18 in the third batch, totaling 34. Among the first batch of astronauts, Yang Liwei is the first Chinese to fly into space; Zhai Zhigang is the first Chinese to leave the spacecraft; Fei Junlong and Nie Haisheng are the first Takionauts to perform two-person multi-day flights; Jing Haipeng has flown four times, making him the Chinese astronaut with the most flights so far, and also the first astronaut to perform a mid-term stay in orbit; Liu Wang is the first Chinese to manually drive a spacecraft. As they age, when the space station is put into use and development, the first batch of astronauts are retiring to the second line, the second batch of astronauts are taking over as the backbone, and the third batch of astronauts will gradually become the main force.

Since the establishment of the space station, China has carried out two manned flight missions every year, with each mission cycle of about 6 months (the first was 3 months), providing a large number of flight opportunities for active astronauts, especially the second, third and even fourth batches of astronauts. Since the “Shenzhou 14” mission, the Chinese space station has entered a state of continuous manned presence, and the crew has achieved in-orbit handover. “Shenzhou 19” is the 8th manned flight mission of the Chinese space station. After nearly 6 months of flight, the crew astronauts Cai Xuzhe, Song Lingdong and Wang Haoze will welcome a new three-person team to take over the residence.

On January 20, 2025, the Shenzhou 20 manned flight mission logo was released. 

The logo of the Shenzhou XX manned flight mission combines tradition and innovation, with a stable triangle as its base, symbolizing that astronauts are climbing new heights based on experience. The main elements of the logo are composed of the earth, the Chinese space station and the Shenzhou XX manned spacecraft. With “precision”, “depth” and “focus” as the design themes, these elements are reconstructed through large perspective and gradient, presenting a stronger visual level as a whole, simulating a visual experience of looking at the external space through a porthole. The red frame conveys the mission of manned flight, and the dark blue inside implies the vast space. The main body of the Shenzhou spacecraft radially docks with the space station, and the solar wing cleverly forms the Chinese character “二十” (i.e. “twenty”). The bright light of the space station cuts through the sky, demonstrating the spirit of astronauts moving forward towards the light and moving forward courageously. The logo simulates the perspective of the porthole, with clear layers and a full sense of visual depth. The simple flat pattern is interwoven with functional wind dots and lines, adding a modern atmosphere. This logo not only highlights the driving force of China’s aerospace science and technology, but also expresses the infinite vision and determination for future exploration. The outer ring of the Shenzhou 20 manned spaceflight mission logo continues the red color used in previous manned spaceflight missions, representing the country and life. The interior of the logo uses dark blue and indigo to depict the earth, orbit, and the intersecting horizon. The Chinese space station and the Shenzhou 20 manned spacecraft are the main components of the composition, and white is used to reflect their inherent color, scientific intentions, and highlight the visual subject. The Shenzhou 20 manned spaceflight mission logo uses four fonts. The use of these fonts is mainly to highlight the design concept with “science fiction” and “dream” as keywords. The font spacing is adjusted to meet the composition requirements and match the overall visual style.

Scientific research tasks

The spokesperson introduced that this mission will use zebrafish, planarians and Streptomyces as research objects and carry out three life science experiments , including:

Weightlessness-induced bone loss/myocardial remodeling is an important medical problem that restricts human deep space exploration. The zebrafish experiment will be based on the zebrafish-duckweed binary ecosystem established during the Shenzhou 18 mission to study the effects of microgravity on protein homeostasis in higher vertebrates and to clarify the regulatory role of protein homeostasis on bone loss and cardiovascular dysfunction caused by weightlessness.

Planarians have powerful regenerative abilities. This experiment on planarian space regeneration is the first of its kind in China. This project will further understand the basic mechanisms of regeneration at the individual level. The research results will help solve health problems such as human space injuries.

Streptomyces plays an important role in soil improvement, plant growth promotion and stress resistance, and ecosystem construction and maintenance. This experiment studies the expression patterns of microbial active substances and enzymes with important application value in the space environment, laying a foundation for the development of microbial application technologies and products using space environment resources. 

News on April 22, 2025, there is a mysterious passenger on this space journey – it is not an astronaut in a space suit, but a planarian called “Sun Wukong of the biological world” by scientists!

Zhen Hui, a young teacher from the School of Life Sciences and Medicine of Shandong University of Technology, introduced that the turbellarians that were sent to the Chinese space station this time were East Asian triangular turbellarians that had undergone asexual reproduction.

Planarians are flatworms with powerful regenerative abilities and are one of the most commonly used animal experimental materials in biological research. Planarians have an amazing ability to repair tissues. Even if they are cut in half, they can still regenerate new muscles, skin, intestines, and even a complete brain on both sides, and this regeneration can continue indefinitely. Research on planarians is of great significance to the study of how human cells overcome aging and delay aging.

Technological innovation

Compared with the rocket for the Shenzhou 19 mission, the Shenzhou 20 mission rocket system has undergone more than 20 optimization and improvements, covering aspects such as manufacturing process, data transmission, and reliability improvement.

Qiao Liqing from Jiuquan Satellite Launch Center: This time, the number of cameras on the rocket has increased, and the video resolution has been upgraded to full HD format, which will help us have a more comprehensive control over the entire rocket flight status.

Hu Yonggang from Jiuquan Satellite Launch Center: In order to improve the decision-making support capabilities during the mission, we have built a card-based solution library covering multiple key systems such as rockets, launch sites, and ground-to-space communications. This year, we introduced the rocket digital flight companion system for the first time, which visualizes key processes such as general inspections and full system drills, and enables real-time interpretation of test data and accurate simulation of flight status.

Visuals are from their respectives also from CNSA- China National Space Administration

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI #September2024| #CMS #CMSA #ChinaMannedSpaceAgency – #重慶 #Chongqing Third Spacesuit Technology Forum of unveiling the China’s First Lunar #Takionauts #EVA # Extravehicular Activity Suit with a Naming Competition with #ChineseIntangibleCulturalHeritage inspired elements   #ASummary

Today on the 28th September 2024, in Chongqing the world’s Largest number One Ultra Mega City, in China, People’s Republic of China. CNSA –China National Space Administration At the Third Spacesuit Technology Forum was held, where the China Manned Space Engineering Office revealed the design of the lunar spacesuit for the first time. They also kicked off a public naming campaign—an exciting chance for everyone to get involved in this historic endeavor….

The China Manned Space Agency (CMSA) unveiled the exterior design of the country’s moon-landing spacesuit for the first time on Saturday, soliciting its name from the public.

Displayed on the third Spacesuit Technology Forum hosted by the China Astronaut/ Takionauts Research and Training Center in southwest China’s Chongqing Municipality, the white moon-landing spacesuit is decorated with red stripes.

The red stripes on its upper limbs are inspired by ribbons of the famous “flying apsaras” of Dunhuang art, while those on its lower limbs resemble rocket launch flames.

According to a video released by the CMSA, the spacesuit is made from protective materials that can effectively shield Takionauts from the lunar thermal environment and lunar dust. It is equipped with a multifunctional integrated control panel that is easy to operate, as well as cameras for recording close-up and long-distance scenes.

The spacesuit also features flexible and reliable gloves, a panoramic glare-proof helmet visor, and joints adapted for low-gravity environments. The overall design of the spacesuit is lightweight, suitable for activities on the lunar surface.

Takionauts Zhai Zhigang and Wang Yaping serve as models for the new lunar suit in the video. Clad in the lunar gear, they perform a variety of movements, including walking, squatting, bending over, kneeling on one knee, and climbing a ladder.

Takionauts Wang Yaping

Takionauts Zhai Zhigang

The most important difference is obviously the structure of the lower body. “Feitian” is a one-piece suit from the waist down, and the lower limbs have very limited mobility. After all, in space extravehicular activities, the lower limbs are basically useless except for supporting the body in a fixed posture with foot limiters. Figures 3 and 4 are indicators of joint mobility of the “Feitian” extravehicular suit. The hip joint (the joint connecting the thigh and the torso) is not even mentioned here, which shows that the requirements for lower limb mobility are very low.

The lower body of the lunar suit is multi-section, especially at the hip joint, there is now a structure that looks like a briefs, which allows a large range of motion of the hip joint, which is equivalent to liberating the legs. The multi-section structure realizes the vital lower limb activities such as walking, bending, squatting, kneeling, and climbing in, and of course it also brings greater challenges to sealing and reliability.

[Manned Lunar Exploration Mission Lunar Suit Name Collection Activity  ]


At present, the lunar landing phase of the manned lunar exploration project has been fully launched and implemented, and various research and construction work is being accelerated. In order to gather social wisdom, the China Manned Space Engineering Office has now launched a lunar suit name collection activity.

1. Content and scope of the collection
The name of the lunar suit (including creative description) is open to all natural persons, legal persons and organizations who love China’s manned space industry.

2. Activity arrangement
The collection activity is organized and implemented in four stages: announcement release, preliminary selection, final selection and result announcement:
(I) Announcement stage. The collection announcement is released to the public, and the collection is closed at 24:00 on October 31, 2024.
(II) Preliminary selection stage. The organization conducts a preliminary review of the collected works and selects no more than 10 schemes for the finalists.
(III) Final selection stage. The organization sets up a review group including experts in engineering, literature, media and other fields, and comprehensively evaluates the opinions of experts to finally select a naming scheme, and selects a certain number of outstanding authors based on the name creative description.
(IV) Results announcement stage. The name of the lunar suit will be officially released to the public.

III. Organizer:
China Manned Space Engineering Office.

IV. Overall standards
(I) Basic concept. The naming of the lunar suit should fully reflect the core values ​​and related elements of manned spaceflight and highlight the good image of “Made in China” based on a positive and positive level.
(II) Creativity requirements. The naming should closely revolve around the theme of this event, pay attention to the connotation of a single name, and comprehensively consider the continuity of the name of the “Feitian” extravehicular space suit in the previous space station mission; reflect the combination of Chinese traditional culture and modern technology, have Chinese characteristics, and distinct technology and exploration implications, and can also represent the characteristics and application value of the lunar suit.
(III) Formal specifications. The Chinese name should be concise and concise, and in principle should not exceed 4 Chinese characters; it should be easy to identify, remember and promote, and in principle, traditional Chinese characters and uncommon characters should not be adopted.

5. Activity Rules
(I) The submitted works must be original works of the contributors. The contributors should ensure that they have the complete copyright of the works and there is no transfer or assignment of copyright to others. If it involves joint cooperation, work of employment or other different ownership status, it is deemed that the partners, units or other rights holders are aware of and agree to be bound by this statement.
(II) Participants should agree that the organizer of the solicitation activity can modify and refer to the submitted works to form the name of the lunar landing suit that will be officially used.
(III) If the submitted works are subject to legal disputes due to copyright, privacy, trademark rights and other rights protection, or because the submitted works have rights defects or the content is false, illegal, improper, or other unreasonable reasons, all legal responsibilities shall be borne by the contributors themselves and the organizer reserves the right to cancel their submission qualifications and recover the awards.
(IV) The submitted works must be submitted for the first time, and before the results of this solicitation are announced, all contributors shall not transfer or authorize the submitted works to a third party, nor submit them to a third party.
(V) Contributors must keep their own drafts. Once submitted, they will not be returned.
(VI) Once the submitted work is finally accepted by the organizer, a copyright (free) transfer contract must be signed, and all rights to the submitted work and related materials belong to the organizer.
(VII) The organizer reserves the final right of interpretation of this event.

VI. Submission method
(I) Submit in WORD document format, with the name of the lunar suit and creative description (within 300 words), as well as the name, unit, and contact information of the contestant.
(II) Send to the mailbox: zhengming-dyf@cmse.gov.cn before the deadline. The email for the manuscript must indicate “lunar suit naming event”.
(III) Contact person: Yang Hongrui, consultation phone: 010-66362321; Zhang Xinfang, consultation phone: 010-68378751.

VII. Award method
The China Manned Space Engineering Office will issue a commemorative certificate for the event to outstanding authors.

Attachments: (Please go to the official website of China Manned Space Engineering to download)
1. Introduction to the basic situation of the lunar suit
2. Information form for the collection of lunar suit names for manned lunar exploration missions

China Manned Space Engineering Office
September 28, 2024

Images and visuals are from their Respectives CMS China Manned SpaceCNSA-China National Space Administration

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI September2024 | #Tongchuan #ShaanxiProvince – Asia’s largest #CarrierRocket space engine high-altitude simulation test international benchmark for China’s Lunar Manned Lunar Mission..

DURING MAY 2024  CNSA _China National Space AdministrationAssisting manned lunar landing Recently, Asia’s largest Carrier Rocket space engine high-altitude simulation test International benchmark  was completed and put into use in Tongchuan, Shaanxi province, China, People’s Republic of China, marking a major breakthrough in the key technology of high-altitude simulation test of the main reduction engine of China’s manned lunar landing project, which will effectively guarantee and support the smooth implementation of the manned lunar exploration project. What is a space engine test bench? Why is it the “ultimate test site” for Carrier Rocket spacecraft engines?

1. What is a space engine test bench?

There is a consensus in the aerospace field: “To develop aerospace, power comes first .” In space exploration, space engines provide power for launch vehicles and other spacecraft to fly into space. If the engine is regarded as the “heart” of the rocket, then the space engine test bench is like the monitor of the rocket’s “heart”. It is a ground test facility specially used to test the performance of rocket engines . It is usually composed of a test workshop, a load-bearing pier, a guide trough, a measurement and control center, a measurement and control system, a test frame, etc. It can simulate the working environment of the engine to verify and evaluate the performance, function, strength, reliability and other aspects of the rocket engine, and ensure that the engine can work stably and reliably in actual flight.

2. Why build a space engine test bench?

The development of space engines is a complex and delicate project, which requires not only a deep theoretical foundation and advanced computational simulation technology, but also actual ignition tests to verify the accuracy and reliability of the design. Therefore, in the process of engine development, the combination of theory and practice is indispensable. The engine test bench is equipped with various high-precision sensors, which are the “senses” of engine testing and can monitor the key parameters of the engine in real time during the ignition test. Through these precise measurements, researchers can intuitively observe the performance of the engine in actual work, so as to have a comprehensive and in-depth understanding of the engine’s performance. These test parameters not only provide researchers with various indicators of the engine’s working status, but also serve as an important basis for evaluating engine performance. By comparing the test results with the design expectations, researchers can find deficiencies in the design and make necessary improvements and optimizations to the engine.

3. Why do different engines require “tailor-made” test benches?

From the perspective of type , since each type of engine has its own unique design and performance parameters, it determines the specific environment and conditions required for testing. This means that one test bench cannot solve the “package” engine test work. Different types of test benches need to be built according to different types of engines to make the test environment and the actual working environment of the engine as consistent as possible. For this reason, test benches can also be classified. For example , according to the scale of the test bench , the test bench structure, the propellant tank capacity, and the measurement and control equipment, it can be divided into large test benches and small and medium-sized test benches; according to the type of engine propellant, it can be divided into liquid oxygen and liquid hydrogen engine test benches, liquid oxygen and kerosene engine test benches, and room temperature storable engine test benches; according to the length of the engine thrust test, it can be divided into two types of test benches: steady-state test and dynamic test. The former mainly tests the engine’s steady-state thrust and pressure performance indicators, and verifies the quality of engine design and manufacturing through long-term stable work, while the latter focuses on the study of the thrust and pressure rise transition process and the aftereffect impulse change characteristics of the descending stage; according to the installation posture during the engine test, it can be divided into horizontal test benches and vertical test benches. The horizontal test bench has a wide range of uses, and the change of engine mass during operation has little effect on thrust measurement, but at the same time, this test bench is less sensitive to lateral forces. Vertical test benches are divided into upright and inverted types.

From a safety perspective , the test bench must ensure safety during the test process. Different engines will generate different thrust and heat flow when ignited, so special guide grooves and cooling systems are needed to deal with it.

From a measurement perspective , in order to obtain accurate test data, the sensors and measurement equipment on the test bench need to match the specific parameters of the engine. For example, the thrust measurement system must be able to accurately measure thrust within a specific range.

From the perspective of the simulation environment , the test bench is designed to simulate various conditions that the engine may encounter in actual flight, including high-altitude simulation, vibration environment, etc. The flight conditions of different engines may be different, so a specific simulation environment is required.

From a cost-effectiveness perspective, designing and building dedicated test rigs for different engines can improve the efficiency and accuracy of testing, saving time and resources in the long run.

From the perspective of technological development , the advancement of space engine development technology will be accompanied by new testing requirements. The construction of a dedicated test bench can provide the necessary testing support for new engines.

4. Why has the high-altitude simulation test bench become a development trend?

When launching, the engines of spacecraft such as the upper stage of a launch vehicle are in a state of low pressure at an altitude of more than 80 kilometers, and their high-altitude performance is very different from that on the ground. Since the aerodynamic and thermal loads that affect the structural strength of the engine cannot be simulated when it is stationary on the ground, a high- altitude simulation test bench is needed to create high-altitude conditions . Usually, a low-pressure environment of 30-40 kilometers is formed by vacuuming to simulate high-altitude flight conditions. The high-altitude simulation test bench is mainly used to assess the nozzle structure and performance of the engine in a low-pressure and vacuum environment to ensure the reliability of high-altitude operation. Through high-altitude simulated hot tests , the safety of the test can be improved , faults can be discovered and eliminated in a timely manner , and key support can be provided for the development of advanced engines .

With the continuous construction and improvement of the space engine test bench, it will provide a more advanced and reliable platform for the development and testing of various types of spacecraft engines.

Images and visuals are from their Respectives CMS China Manned SpaceCNSA-China National Space Administration

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI July2024 |#长征十号#ChangZheng10 #CZ10 #LongMarch10 the Next Generation Manned #LunarCarrierRocket successfully completed the test of the  3D Printed Three #YK100K  first-stage rocket power engine system…

On the week of 23rd July  2024  CNSA _China National Space Administration -China – People’s Republic of China at a China Academy Of Launch Vehicle Technology  Engine Testing complex.. of the China Aerospace Science and Technology Corporation Sixth Academy…. China’s new generation of manned carrier rocket three-stage liquid hydrogen and liquid oxygen engine long-range high-model test was a complete success … for the长征十号 Chang Zheng- Long March

Recently, the new generation of manned carrier rocket three-stage liquid hydrogen and liquid oxygen engine completed a long-range test in a high-altitude simulated environment on China’s newly built vertical high-altitude simulation test bench, verifying the feasibility of long-range operation of China’s largest nozzle area ratio liquid hydrogen and liquid oxygen engine. The test was a complete success.

The success of this long-range high-model test indicates that China’s liquid hydrogen and liquid oxygen engine high-altitude simulation test capability has reached the level of thousands of seconds, which has greatly improved China’s liquid rocket engine high-model test capability and will strongly support the smooth implementation of China’s manned lunar exploration project. (China Aerospace Science and Technology Corporation Sixth Academy…

Long March 10 rocket is a three-and-a-half-stage rocket developed for the manned lunar exploration project. The total length of the rocket is 92.5 meters, the takeoff weight is about 2,189 tons, the takeoff thrust is about 2,678 tons, and the Earth-Moon transfer orbit carrying capacity is not less than 27 tons. In the future, it will be used to launch a new generation of manned spacecraft and lunar landers. In addition, the Long March 10 has also designed another booster-free configuration that can perform space station Takionaut and cargo transportation tasks….

Images and visuals are from their Respectives CMS China Manned SpaceCNSA-China National Space Administration

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI June2024 | #长征十号#ChangZheng10 #CZ10 #LongMarch10 the Next Generation Manned #LunarCarrierRocket successfully completed the test of the Three #YK100K  first-stage rocket power engine system…

On the 14th June 2024  CNSA _China National Space Administration -China – People’s Republic of China at a China Academy Of Launch Vehicle Technology  Engine Testing complex.. On June 14, the Long March 10 series rockets used for manned lunar landing and other missions successfully completed the test of the first-stage rocket power system. During the test, the engine started normally, worked stably, shut down at a fixed time, and all parameters were tested normally. This test is the first system-level large-scale ground test of the Long March 10 series of launch vehicles. The matching of the first-stage booster delivery system and the engine, the propellant filling process, the multi-machine parallel power transmission and environmental characteristics and other technologies were fully verified.

The Long March 10 rocket is a three-and-a-half-stage rocket developed for the manned lunar exploration project. The total length of the rocket is 92.5 meters, the takeoff weight is about 2,189 tons, the takeoff thrust is about 2,678 tons, and the Earth-Moon transfer orbit carrying capacity is not less than 27 tons. In the future, it will be used to launch a new generation of manned spacecraft and lunar landers. In addition, the Long March 10 has also designed another booster-free configuration that can perform space station astronaut and cargo transportation tasks….

The engine is the power source of the rocket, and its development process is very complicated. Test run is an important link in the engine development process, and there are dozens of types. In layman’s terms, engine test run is the process of igniting the engine and verifying the rationality of its design scheme and process reliability. This is an indispensable and important part of the development and delivery of a type 1 engine. It will run through all stages before and after engine development. Each stage of test run has different meanings, and the ignition time varies from a few seconds to hundreds of seconds.

It is reported that the engine used in this test run uses advanced liquid oxygen kerosene as fuel, which is improved and iterated from the high-thrust liquid oxygen kerosene engine used by the new generation of launch vehicles such as the Long March 5. The thrust reaches 130 tons. The R&D team of the Sixth Academy of Aerospace Science and Technology Group adheres to the concept of digital design, and has successively overcome key technical problems such as engine start-up and shutdown sequence, engine wide-range continuously variable thrust, and engine long life and high reliability.

In addition, the continuous success of the test run has fully verified the reliability of a number of new carrying process technologies. The engine production of this test run adopts the concept of intelligent manufacturing, and actively applies new materials, new processes, and new technologies. The inner wall of the thrust chamber of the core component adopts a new protective coating, key assemblies adopt automatic welding technology, and a large number of components adopt 3D printing technology.

During the preparation of the engine test run, the participants in the research and test conducted tests and verifications on each subsystem of the test through comprehensive means such as digital modelling, simulation calculation, and system debugging. The successful test run shows that the test area has greatly improved the multi-station parallel test run capability and test efficiency by optimizing the workflow.

Images and visuals are from their Respectives CMS China Manned SpaceCNSA-China National Space Administration  the Sixth Academy of Aerospace Science and Technology Group