长征十号 At 22nd 23rd July 2023 Hong Kong SAR- Beijing time , China- People’s Republic of China- CNSA –China National Space Administration Successfully Carrier Rocket engine tested for the New Next Generation Chang Zheng – Long March 10 Manned Lunar mission landing Carrier rocket freighter The main engine of China’s manned lunar landing rocket Long March 10 completed another ignition test run yesterday, which verified all the requirements of the rocket mission for the engine, and provided strong support for the solidification of the engine’s technical status, the establishment of product technology baselines, and the improvement of reliability.
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 active Long March 5, with a thrust of 130 tons. (The Sixth Academy of Aerospace Science and Technology Group)
The reporter learned from China Aerospace Science and Technology Group Co., Ltd. on July 23 that the main engine of my country’s manned moon landing rocket was tested in the Fengzhou Test Area of the Sixth Academy of Aerospace Science and Technology Corporation, and achieved continuous success. This test run verified the engine flight mission profile, and provided strong support for the solidification of the engine technical state, the establishment of the product technical baseline, and the improvement of reliability.
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.