YF-102 (rocket engine)

The YF-102 is a Chinese liquid rocket engine burning LOX and kerosene in a gas generator cycle.[4] It is manufactured by the AALPT based on the experience of previous kerolox engines, and using 3D printing technology and is capable of multiple restarts.[1][3] It still does not have a launch vehicle, but in its presentation video, it was shown in a five engine configuration on a 3.35m diameter first stage and as a single engine on the second stage.[1][3] As of October 2021, it was in an advanced state of development, with six fully assembled prototypes some of which had achieved over 200 seconds of test firing. It was stated that it could be read by 2022.[1] A reusable version, YF-102R could be ready by 2026 according to the manufacturer.[1]

YF-102
Country of originChina
DesignerAcademy of Aerospace Liquid Propulsion Technology[1]
StatusIn development
Liquid-fuel engine
PropellantLOX[1] / RP-1[1]
CycleGas-Generator Cycle
Configuration
Chamber1[1]
Performance
Thrust, sea-level835 kN (188,000 lbf)[1]
Throttle range620 kN (140,000 lbf) to 835 kN (188,000 lbf)[1]
Chamber pressure8.5 MPa (1,230 psi)[2]
Specific impulse, sea-level275.5 seconds (2.702 km/s)[2][3]
Burn time130 s [2][3]
RestartsMultiple[1]
Gimbal range6°[3]
Dimensions
Length2,178 millimetres (85.7 in)[3]

See also
  • YF-100 – First stage Chinese rocket engine which is a previous kerolox engine from the manufacturer.
  • YF-115 – Upper stage Chinese rocket engine which is a previous kerolox engine from the manufacturer.

References
  1. "YF-102, The New Kid on the Block (of Rocket Engines)". www.dongfanghour.com. Archived from the original on 2022-01-01. Retrieved 2022-05-06.
  2. Norbert, Brügge. "China's new rocket engines". B14643.de. Archived from the original on 2022-03-27. Retrieved 2022-05-06.
  3. CASC revealed new LOX/kerosene engine YF-102 with 85t thrust (in Chinese). CNSA Watcher - Archives. 2022-10-05. Retrieved 2022-05-06.
  4. CN114046213B, 刘上; 王通 & 韩红伟 et al., "Open type liquid oxygen kerosene engine system and thrust adjusting method thereof", issued 2022-05-10
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