YF-130

YF-130

Country of origin	China
Manufacturer	Academy of Aerospace Liquid Propulsion Technology
Application	Long March 9
Status	Under development
Liquid-fuel engine
Propellant	Liquid oxygen / Kerosene
Mixture ratio	2.62
Cycle	Staged combustion
Pumps	1
Configuration
Chamber	2
Performance
Thrust, sea-level	~5,000 kilonewtons (1,100,000  lbf)
Thrust-to-weight ratio	78
Chamber pressure	22 MPa (3,200 psi)
Specific impulse	308
Dimensions
Length	~4.3 m (14 ft)
Diameter	~3–3.3 m (9.8–10.8 ft)
Dry mass	~6.5 t (6.4 long tons; 7.2 short tons)
Used in
Long March 9 First stage and booster
References
Notes	[1] [2]

The YF-130 is a Chinese rocket engine fueled by LOX and kerosene in an oxidizer-rich staged combustion cycle currently in development. It has been designed to reach around 500 tonnes of thrust and it will power the super heavy Long March 9 rocket. ^[3]

History

Chinese researchers completed a "half-system on full working condition" test of a YF-130 engine in March 2021, and expected to finish a whole-system test verification by the end of the year. ^[4] Full system test has been successfully completed on November 6, 2022. ^[5]

References

1. 李斌,陈晖,马冬英,高玉闪 (2022-01-03). "500tf级液氧煤油高压补燃发动机研制进展" (in Simplified Chinese). 《火箭推进》2022年02期. Archived from the original on 2022-07-26. Retrieved 2022-06-09.
2. "以重型之力，夯强国之基｜深度解码我国最大推力液体火箭发动机" (in Simplified Chinese). 西安航天动力研究所. 2022-11-06. Retrieved 2022-11-06.
3. "China moves to next stage of super heavy rocket development". SpaceNews. 14 January 2021.
4. Zhen, Liu (23 December 2021). "China closes in on deep space ambitions with latest rocket engine test". South China Morning Post. Retrieved 13 March 2022.
5. Xin, Ling (6 November 2022). "Powerful Chinese space rocket engine passes 'milestone' test". South China Morning Post. Retrieved 23 November 2022.