YF-130

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]

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]

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]