Longyun (rocket engine)

Rocket engine From Wikipedia, the free encyclopedia

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.

Quick Facts Country of origin, Manufacturer ...
Lingyun
Country of originChina
ManufacturerJiuzhou Yunjian
StatusUnder development
Liquid-fuel engine
PropellantLOX / CH4
Performance
Thrust, vacuum770.2 kilonewtons (173,100 lbf)
Thrust, sea-level686.5 kilonewtons (154,300 lbf)
Throttle range30%~100%
Specific impulse, vacuum350s
Specific impulse, sea-level290s
Dimensions
Dry mass880 kg (1,940 lb)
References
Notes[1]
Close

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

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