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Jiuzhou Yunjian and Lingke Aerospace complete the T6 rocket engine contract

  • Categories:News Center
  • Time of issue:2020-07-06 14:52

(Summary description)On August 10, 2019, the new generation of recoverable test rocket (RLV-T5) independently developed by Lingke Aerospace conducted its third launch and recovery test at the Lenghu Rocket Test Base in Qinghai Province. The test was a complete success. With the T5 rocket steadily landing on the ground, the friends at the cold lake launch site were proud of these young boys from the bottom of their hearts.

Jiuzhou Yunjian and Lingke Aerospace complete the T6 rocket engine contract

(Summary description)On August 10, 2019, the new generation of recoverable test rocket (RLV-T5) independently developed by Lingke Aerospace conducted its third launch and recovery test at the Lenghu Rocket Test Base in Qinghai Province. The test was a complete success. With the T5 rocket steadily landing on the ground, the friends at the cold lake launch site were proud of these young boys from the bottom of their hearts.

  • Categories:News Center
  • Time of issue:2020-07-06 14:52
  • Views:
Information

On August 10, 2019, the new generation of recoverable test rocket (RLV-T5) independently developed by Lingke Aerospace conducted its third launch and recovery test at the Lenghu Rocket Test Base in Qinghai Province. The test was a complete success. With the T5 rocket steadily landing on the ground, the friends at the cold lake launch site were proud of these young boys from the bottom of their hearts.

T5 rocket launch

What is T5?
The T5 rocket (RLV-T5) is a recoverable test rocket independently developed by the guys of Lingke Aerospace. The power used for the flight of the T5 rocket is an extruded engine that uses liquid oxygen alcohol as a propellant, with a thrust of 3000N, and five engines in parallel. The advantage of the extrusion engine is that the thrust can be adjusted simply and directly through the valve throttling, but the limitation is that the thrust is small (the extrusion engine needs to increase the tank pressure to increase the thrust, and the "ceiling" of the tank pressure is very low. , Limiting the engine thrust and flying height), the guys of Lingke Aerospace built a T5 test rocket based on this engine. After several years of exploration and iteration, they have mastered the control technology for rocket launch and recovery, and have already used the T5. The test rocket has carried out three launch and recovery tests in Shandong and Qinghai. According to a small partner at the scene, the launch altitude has reached 302m. At present, based on the T5 rocket, Lingke Aerospace has repeatedly verified its launch and recovery technology. If you want to reach a higher altitude for recovery tests, you need a pumped liquid rocket engine to complete it, and it must support recovery.
Kyushu Cloud Arrow×Lingke Aerospace=T6
At the Qinghai Lenghu launch and recovery test site, Lingke Aerospace and Kyushu Yunjian announced an exciting plan: Lingke Aerospace's next-generation RLV-T6 recoverable rocket project will be jointly developed and jointly developed with Kyushu Yunjian. The T6 rocket is positioned as a vertical recovery verification rocket flying over 100km. The T6 will undergo a harsh environment assessment of re-entry into the atmosphere. It will also require multiple starts of the rocket engine and deep variable thrust support. At this height, use the squeeze on the T5 rocket. The compression engine will not be able to meet the test requirements, and Kyushu Yunjian has the "Lingyun" liquid oxygen methane engine, which is currently the only pumping liquid rocket engine that supports rocket recovery in China, and is undoubtedly the best partner for the T6 rocket.
 

Jiuzhou Yunjian completed the project contract with Lingke Aerospace in Lenghu

Pump pressure rocket engine supporting recovery and reuse On December 22, 2015, Space-X used the Falcon-9 rocket to successfully launch 11 small communication satellites of Orbital Communications. At the same time, the Falcon rocket successfully carried out the first time in the world. The vertical recovery of the first-stage power system was verified, and the recovery technology of the orbital launch vehicle was verified, which laid an important technological lead for the subsequent rapid development of SpaceX. The launch vehicle needs to have two major technologies to achieve recovery. One is the control technology of the arrow body attitude and the accuracy of the landing point. During the return process, the rocket reentry speed is large and the interference is large. After reentry, the attitude of the rocket body needs to be adjusted to vertical. This process requires high control technology; another key is the rocket engine thrust depth adjustment and multiple start technology. Without engine reverse thrust, even if the rocket's attitude is adjusted well, because the speed cannot be controlled, it can only accelerate and fall to the ground. During the recovery process, the mass of the rocket will decrease with the rapid fuel consumption. Therefore, the rocket engine must be able to adjust the thrust vector output in real time according to the height, speed, and mass changes of the rocket during the recovery process, so as to achieve a smooth landing of the rocket. It can be said that control technology + engines with adjustable thrust depth account for 90% of the factors that affect the success or failure of rocket recovery.
As early as the first half of this year, the guys from Lingke Aerospace found Kyushu Yunjian-a professional liquid rocket engine development team, and heard that the Kyushu Yunjian "Lingyun" engine was aimed at supporting the rocket recovery during the program demonstration and design process. Starting with the application scenario, Kyushu Yunjian has been working hard towards the three domestic pumping engine bottleneck technologies of multiple startups, reusable and fast maintenance, and deep variable thrust for more than a year, and the two parties have reached an in-depth cooperation intention. The good news is that in July of this year, just one month before the takeoff of the Lingke Aerospace T5 test rocket in Lenghu, Kyushu Yunjian completed the "Lingyun" reusable liquid oxygen methane engine for many times. Commissioning test. Including 30% variable thrust test, 20% deep variable thrust test and 20s continuous variable thrust test, all the tests have been successful, making the "Lingyun" liquid oxygen methane engine the first and only one that truly supports transportation in China. Pump-pressure liquid rocket engine for rocket recovery and reuse.
On the day of the Kyushu Yunjian "Lingyun" engine test, the founder of Lingke Aerospace, Mr. Hu (xiao) Zhen (huo) Yu (zi), witnessed this domestic liquid rocket with the Kyushu Yunjian engine team in the engine test and control room. The new breakthrough in engine technology has more confidence in the development of Lingke Aerospace's future T6 rocket.
Compared with the United States, domestic commercial aerospace started late, and there is also a certain gap between technological accumulation and industrial foundation. Domestic commercial aerospace companies want to make rapid breakthroughs, and it is very important for domestic commercial aerospace companies to use their respective advantages to form a joint force and create a win-win situation. It is worth noting that starting from 2017, the domestic commercial aerospace field has gradually shown signs of industry segmentation. Satellite manufacturers-launch sites-rockets-rocket engines-supporting manufacturers and other key nodes in the entire industry chain are in progress. It is gradually formed. Looking back at this short period of 2-3 years, China Aerospace has made many new breakthroughs in key technologies and hard-core products. It is believed that in the near future, the development model of strong alliances will boost China Aerospace. Keep accelerating forward. In the future large-scale space exploration activities of mankind, there will be more Chinese private enterprises.

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