YF-75

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YF-75
Country of origin China
Manufacturer China Academy of Launch Vehicle Technology (CALT)
Status In service & development
Liquid-fuel engine
Propellant Liquid oxygen / Liquid hydrogen
Mixture ratio 5.00
Cycle Gas-generator
Configuration
Chamber 1
Nozzle ratio 80:1
Performance
Thrust (vac.) 78.45 kilonewtons (17,640 lbf)
Chamber pressure 37.6 bars (3,760 kPa)
Isp (vac.) 437 seconds (4.29 km/s)
Burn time 470 seconds (7.8 min)
Dimensions
Length 2.8 metres (9 ft 2 in)
Diameter 1.5 metres (4 ft 11 in)
Dry weight 550 kilograms (1,210 lb)
Used in
Long March 3A, Long March 3B and Long March 3C,all in 3rd stage
References
References [1]

The YF-75 is China's second generation of cryogenic gimballed engine, using liquid hydrogen (LH2) fuel and liquid oxygen (LOX) oxidizer. Its development began in the early 1990s and its first flight was in 1994.

Footnotes[edit]

  1. ^ "YF-25". Encyclopedia Astronautica. Retrieved 6 November 2013. 

References[edit]