Longyun (rocket engine)
In this article, we will explore the fascinating history of Longyun (rocket engine) and its impact on today's society. From its humble beginnings to its relevance today, Longyun (rocket engine) has played a crucial role in various aspects of everyday life. Over time, Longyun (rocket engine) has been the subject of intense debate and has inspired countless research, demonstrating its importance in fields as diverse as science, culture, politics, and many others. Through detailed analysis, we will examine how Longyun (rocket engine) has evolved over the years and how it continues to shape the world around us.
| Country of origin | China |
|---|---|
| Manufacturer | Jiuzhou Yunjian |
| Status | Under development |
| Liquid-fuel engine | |
| Propellant | LOX / CH4 |
| Performance | |
| Thrust, vacuum | 770.2 kilonewtons (173,100 lbf) |
| Thrust, sea-level | 686.5 kilonewtons (154,300 lbf) |
| Throttle range | 30%~100% |
| Specific impulse, vacuum | 350s |
| Specific impulse, sea-level | 290s |
| Dimensions | |
| Dry mass | 880 kg (1,940 lb) |
| References | |
| Notes | [1] |
The Longyun (Chinese: 龙云; pinyin: Lóngyún, lit. Dragon Clouds) is a gas-generator cycle rocket engine burning liquid methane and liquid oxygen under development by Jiuzhou Yunjian.
History
In 2018, the gas generator test for the Longyun engine was completed.[2] The engine completed multiple start-up hot test runs in May 2021.[3] In October 2021, launch startup Rocket Pi signed a deal to use the Longyun engine to power its Darwin-1 reusable launch vehicle.[4]
Space Epoch conducted a ground test of a 4.2-meter stainless steel stage powered by the Longyun engine in January 2023.[5]
In April 2024, Longyun passed a long duration hot firing test with the servo mechanism rotating to the maximum angle of ±8°. The engine has also reportedly passed the customer acceptance test.[6]
References
- ^ "Longyun Engine JiuZhou Cloud Arrow (Beijing) Space Technology Co., Ltd". en.jzyjspace.com.
- ^ Jones, Andrew (12 August 2019). "Chinese Linkspace reaches 300 meters with launch and landing test". SpaceNews. Retrieved 15 March 2024.
- ^ "JiuZhou YunJian "LongYun" engine has completed multiple start-up hot test runs_JiuZhou Cloud Arrow (Beijing) Space Technology Co., Ltd". en.jzyjspace.com. Retrieved 15 March 2024.
- ^ Jones, Andrew (31 October 2021). "New Chinese launch firm signs deal for reusable rocket engines". SpaceNews. Retrieved 15 March 2024.
- ^ Alaieva, Liliia (20 January 2023). "The Chinese are preparing to launch a "miniature Starship"". The Universe Magazine. Retrieved 15 March 2024.
- ^ "九州云箭 70 吨级"龙云"火箭发动机高压泵后热摇摆试验圆满成功". www.ithome.com. ithome.
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