RD872
Yuzhnoye Design Bureau
The RD872 is a single-chamber dual-thrust staged combustion cryogenic rocket engine developed by Yuzhnoye SDO for second stage propulsion applications across the Cyclone-5 and Mayak launch vehicle families. It utilizes tried-and-tested technologies of the Zenit launch vehicle, burning liquid oxygen and kerosene to produce 93 tf of vacuum thrust with a specific impulse of 350.5 […]
Key figurescomparable across the catalogue
- Mass
- 1,530 kg
- Thrust
- 93 N
- Specific impulse
- 350.5 s
- TRL
- 6
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Propellants
- O2 + kerosene
- Vacuum Thrust
- 93 tf
- Specific Impulse (vacuum)
- 350.5 s
- Propellant Mixture Ratio
- 2.6
- Number of Starts
- 1
- Engine Weight (incl. mounts and gimbal actuators)
- 1,530 kg
- Cycle
- Staged combustion, dual-thrust
- TRL
- 6
About
The RD872 is a single-chamber dual-thrust staged combustion cryogenic rocket engine developed by Yuzhnoye SDO for second stage propulsion applications across the Cyclone-5 and Mayak launch vehicle families. It utilizes tried-and-tested technologies of the Zenit launch vehicle, burning liquid oxygen and kerosene to produce 93 tf of vacuum thrust with a specific impulse of 350.5 seconds. The dual-thrust capability allows for throttling to optimize trajectory performance. The RD872 weighs 1,530 kg including mounts and gimbal actuators, and has achieved Technology Readiness Level 6, confirming demonstration in a relevant environment. Its high thrust and specific impulse combination makes it one of the highest-performing LOX/kerosene upper stage engines in Ukraine’s engine portfolio.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.