Lunar Booster Stage (LBS)
Yuzhnoye Design Bureau
The Lunar Booster Stage (LBS) is a cryogenic upper stage developed by Yuzhnoye SDO for injecting payloads from low Earth orbit onto translunar trajectories in support of crewed and uncrewed lunar exploration missions. With a liftoff mass of 92.6 tonnes and powered by two RD809K LOX/kerosene engines, the LBS can deliver 30.5 tonnes onto a […]
Key figurescomparable across the catalogue
- Mass
- 92,600 kg
- Payload capacity
- 30,500 kg
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
- Liftoff Mass
- 92.6 t
- Engines
- 2 x RD809K
- Propellants
- LOX + kerosene
- Payload to Translunar Trajectory
- 30.5 t
About
The Lunar Booster Stage (LBS) is a cryogenic upper stage developed by Yuzhnoye SDO for injecting payloads from low Earth orbit onto translunar trajectories in support of crewed and uncrewed lunar exploration missions. With a liftoff mass of 92.6 tonnes and powered by two RD809K LOX/kerosene engines, the LBS can deliver 30.5 tonnes onto a translunar trajectory when launched aboard the Mayak-SH5 super-heavy launch vehicle. The RD809K engines provide up to 4 restarts each, enabling precise orbital targeting including trans-lunar injection burn optimization. The LBS serves as the core translunar injection stage in Yuzhnoye’s integrated crewed lunar exploration transportation architecture, bridging low Earth orbit and the cislunar environment.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.