YF-23 (rocket engine)

This article is about the Chinese rocket engine. For the American fighter jet, see Northrop YF-23.
YF-23E
Country of originChina
First flight1974-11-05
DesignerAcademy of Aerospace Liquid Propulsion Technology
ApplicationVernier engine
Associated LVFeng Bao 1, Long March 2, Long March 3 and Long March 4
StatusIn Production
Liquid-fuel engine
PropellantN2O4 / UDMH
Mixture ratio1.57
Configuration
Chamber4
Performance
Thrust, vacuum47.1 kN (10,600 lbf)
Specific impulse, vacuum297 seconds (2.91 km/s)
Burn time300s
Used in
Long March 2F, Long March 3A, Long March 3B, Long March 3C, Long March 4B and Long March 4C second stage.
References
References[1][2][3][4]

The YF-23 is a liquid rocket vernier engine, burning N2O4 and UDMH.[5] It is used in along the YF-22 to form the YF-24 and YF-25 propulsion modules.[3][6][7][8]

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