YF-75

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[edit] YF-75 (Rocket Engine)

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.

[edit] Specifications

  • Vacuum thrust: 78.45 kN
  • Vacuum specific impulse: 437 s
  • Burn time: 470 s
  • Engine weight: 550 kg
  • Exit to Throat Area ratio: 80 to 1
  • Propellants: LOX & LH2
  • Mixture ratio: 5.00


  • Design: Gas-generator cycle
  • Height: 2.8 m
  • Diameter: 1.50 m
  • Chambers: 1
  • Chamber Pressure: 37.60 bar
  • Thrust to Weight Ratio: 14.26
  • Restartable: Yes (1 time)


[edit] References